ACME ACADEMYWEEKLY EVALUATION TESTSubject: Biology
Time Limit: 120 Mins
Max Marks: 399 Marks
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Student Name:
Roll Number:
Class / Sec:
Date:
GENERAL INSTRUCTIONS:
1.
Which of the following best describes the main event in the light reactions of photosynthesis?
[1 Mark]
2.
During the light reactions of photosynthesis, what happens to water?
[1 Mark]
3.
Which of the following is NOT a product of the light reactions of photosynthesis?
[1 Mark]
4.
In Photosystem II (PS II), the reaction center chlorophyll is known as P680 because it:
[1 Mark]
5.
Photolysis of water (splitting of water) takes place in which part of the chloroplast?
[1 Mark]
6.
The oxygen released during photosynthesis comes from:
[1 Mark]
7.
The light - dependent reactions of photosynthesis occur in the:
[1 Mark]
8.
Which of the following statements is true regarding cyclic photophosphorylation?
[1 Mark]
9.
Which component is NOT directly required for the light reactions of photosynthesis?
[1 Mark]
10.
What is the role of chlorophyll in the light reactions?
[1 Mark]
11.
During noncyclic photophosphorylation, which of the following occurs?
[1 Mark]
12.
How many molecules of oxygen are produced when four molecules of water are split during the light reactions?
[1 Mark]
13.
In terms of energy, the conversion that occurs in the light reactions is:
[1 Mark]
14.
Which of the following is the immediate source of electrons in Photosystem II during the light reactions?
[1 Mark]
15.
Which of the following happens in the lumen of the thylakoid during the light reactions?
[1 Mark]
16.
What is the ultimate electron acceptor in the light reactions of photosynthesis?
[1 Mark]
17.
The Hill reaction refers to the photochemical reaction of:
[1 Mark]
18.
New MCQs: 1. Which pigment is the primary light - harvesting pigment in photosynthesis?
[1 Mark]
19.
Accessory pigments in plants play all of the following roles EXCEPT:
[1 Mark]
20.
Which pigment gives plants their green color?
[1 Mark]
21.
In which part of the spectrum does chlorophyll a show maximum absorption?
[1 Mark]
22.
Which of the following is NOT a photosynthetic pigment?
[1 Mark]
23.
Xanthophyll is a pigment that absorbs:
[1 Mark]
24.
Carotenoids in leaves can be seen most easily in autumn because:
[1 Mark]
25.
Photosynthesis can occur in all of the following plant parts EXCEPT:
[1 Mark]
26.
Which pigment is considered an accessory pigment and not found in chloroplasts of higher plants?
[1 Mark]
27.
The basic structure of a chlorophyll molecule is:
[1 Mark]
28.
Which of the following statements is true?
[1 Mark]
29.
Engelmann’s experiment using filamentous algae demonstrated that:
[1 Mark]
30.
The observed action spectrum of photosynthesis closely resembles the absorption spectrum of:
[1 Mark]
31.
Which pigment transfers energy to chlorophyll a by resonance?
[1 Mark]
32.
A plant lacking all accessory pigments except chlorophyll a would:
[1 Mark]
33.
Which color of light is least effective for driving photosynthesis in most plants?
[1 Mark]
34.
Which pigment has peak absorption at 662 nm and 430 nm wavelengths?
[1 Mark]
35.
Photosystem II differs from Photosystem I in that PS II:
[1 Mark]
36.
The reaction center of Photosystem I absorbs at:
[1 Mark]
37.
Which statement about photosystems is false?
[1 Mark]
38.
Which component is common to both Photosystem I and II?
[1 Mark]
39.
Where are Photosystem I complexes predominantly located?
[1 Mark]
40.
During noncyclic electron flow, which is true?
[1 Mark]
41.
The primary role of the pigments in the reaction center of a photosystem is to:
[1 Mark]
42.
Which of the following pairs is correctly matched?
[1 Mark]
43.
Plastoquinone is associated with which part of the photosynthetic apparatus?
[1 Mark]
44.
Ferredoxin is an iron - sulfur protein that primarily interacts with:
[1 Mark]
45.
The source of electrons for Photosystem II comes from:
[1 Mark]
46.
Which of the following statements is correct?
[1 Mark]
47.
The principal pigment in the reaction center of Photosystem II is:
[1 Mark]
48.
Which of the following does NOT occur in Photosystem I?
[1 Mark]
49.
During cyclic electron flow in photosynthesis:
[1 Mark]
50.
Which metal ion is found at the oxygen - evolving complex of Photosystem II?
[1 Mark]
51.
Which of the following is not a function of the cytochrome b₆f complex?
[1 Mark]
52.
The "Z - scheme" in photosynthesis refers to:
[1 Mark]
53.
The Emerson enhancement effect demonstrated that:
[1 Mark]
54.
Red drop refers to:
[1 Mark]
55.
In the Z - scheme, which of the following is true about P680?
[1 Mark]
56.
In the Z - scheme, which molecule is reduced at the end of the light reactions?
[1 Mark]
57.
Which phenomenon could not be explained by a single - photosystem model?
[1 Mark]
58.
The Z - scheme model shows that:
[1 Mark]
59.
Which experiment provided evidence for the two - photosystem concept of photosynthesis?
[1 Mark]
60.
In the context of the Z - scheme, P680 and P700 refer to:
[1 Mark]
61.
What is the significance of the Z - shape of the energy diagram in photosynthesis?
[1 Mark]
62.
If a leaf is illuminated with only far - red light (>700 nm), the efficiency of photosynthesis:
[1 Mark]
63.
Combining red light (680 nm) and far - red light (>700 nm) causes:
[1 Mark]
64.
The two photosystems in the Z - scheme absorb light and then transfer electrons via:
[1 Mark]
65.
Which statement accurately describes the energy changes in the Z - scheme?
[1 Mark]
66.
Which is NOT a feature of the Z - scheme?
[1 Mark]
67.
In photosynthesis, the “primary acceptor” of an excited electron (at PSII) is:
[1 Mark]
68.
Which of the following correctly describes the Z - scheme sequence of events?
[1 Mark]
69.
Photophosphorylation refers to:
[1 Mark]
70.
Which of the following statements correctly describes cyclic photophosphorylation?
[1 Mark]
71.
In noncyclic photophosphorylation, the electrons originate from:
[1 Mark]
72.
The process of ATP generation in chloroplasts during photophosphorylation is primarily driven by:
[1 Mark]
73.
Which enzyme synthesizes ATP during photophosphorylation?
[1 Mark]
74.
In cyclic photophosphorylation:
[1 Mark]
75.
How does the rate of cyclic photophosphorylation compare to noncyclic photophosphorylation?
[1 Mark]
76.
Photophosphorylation is called “noncyclic” when:
[1 Mark]
77.
What distinguishes photophosphorylation from oxidative phosphorylation?
[1 Mark]
78.
The number of ATP molecules generated per NADPH in noncyclic photophosphorylation is approximately:
[1 Mark]
79.
Which factor limits the rate of photophosphorylation?
[1 Mark]
80.
During photophosphorylation, protons accumulate in:
[1 Mark]
81.
The energy for ATP synthesis during the light reactions ultimately comes from:
[1 Mark]
82.
Which of the following does NOT happen during cyclic photophosphorylation?
[1 Mark]
83.
The main difference between cyclic and noncyclic photophosphorylation is:
[1 Mark]
84.
The “CF₁ - CF₀ complex” in chloroplasts is analogous to what mitochondrial structure?
[1 Mark]
85.
One rotation of ATP synthase in chloroplasts yields about:
[1 Mark]
86.
The enzyme responsible for carbon fixation in the Calvin cycle is:
[1 Mark]
87.
The Calvin cycle occurs in the:
[1 Mark]
88.
The first stable product of the Calvin cycle in C₃ plants is:
[1 Mark]
89.
For the fixation of 6 molecules of CO₂ in the Calvin cycle, how many molecules of glyceraldehyde - 3 - phosphate (G3P) are produced (total)?
[1 Mark]
90.
How many ATP and NADPH molecules are required to fix one molecule of CO₂ in the Calvin cycle?
[1 Mark]
91.
If glyceraldehyde - 3 - phosphate (G3P) from the Calvin cycle is used to form glucose, how many turns of the cycle are needed?
[1 Mark]
92.
One of the main functions of the Calvin cycle is:
[1 Mark]
93.
Which molecule is regenerated at the end of the Calvin cycle?
[1 Mark]
94.
During the Calvin cycle, the two molecules of 3 - phosphoglycerate produced from CO₂ fixation are:
[1 Mark]
95.
The Calvin cycle can be divided into three phases. Which of the following is NOT one of these phases?
[1 Mark]
96.
The enzyme RuBisCO has both carboxylase and oxygenase activities. At high O₂ concentrations, RuBisCO will:
[1 Mark]
97.
In C₄ plants, the initial fixation of CO₂ by PEP carboxylase yields:
[1 Mark]
98.
Which of the following is an essential requirement of the Calvin cycle?
[1 Mark]
99.
The molecule 3 - phosphoglycerate (3 - PGA) is produced when CO₂ combines with:
[1 Mark]
100.
Which statement about the Calvin cycle is true?
[1 Mark]
101.
How many molecules of ATP are consumed in the Calvin cycle for the fixation of three molecules of CO₂?
[1 Mark]
102.
The reduction phase of the Calvin cycle produces:
[1 Mark]
103.
Photorespiration refers to:
[1 Mark]
104.
Photorespiration is typically:
[1 Mark]
105.
Which condition increases photorespiration in C₃ plants?
[1 Mark]
106.
In C₄ plants, photorespiration:
[1 Mark]
107.
The by - product phosphoglycolate produced in photorespiration is:
[1 Mark]
108.
Photorespiration decreases net photosynthetic output mainly because:
[1 Mark]
109.
Which of the following represents the oxygenase activity of RuBisCO during photorespiration?
[1 Mark]
110.
Photorespiration is initiated in:
[1 Mark]
111.
The C₂ pathway is another name for:
[1 Mark]
112.
Which of the following plants is most affected by photorespiration?
[1 Mark]
113.
How does photorespiration affect plants?
[1 Mark]
114.
In low CO₂ and high O₂ conditions, RuBisCO will:
[1 Mark]
115.
Which of the following is produced as a result of RuBP oxygenation in photorespiration?
[1 Mark]
116.
Photorespiration is called the C₂ pathway because:
[1 Mark]
117.
Photorespiration in plants is primarily a problem under:
[1 Mark]
118.
Which of the following is true about the photorespiratory pathway?
[1 Mark]
119.
Which of these reduces the rate of photorespiration?
[1 Mark]
120.
The initial CO₂ acceptor molecule in the C₄ pathway is:
[1 Mark]
121.
The enzyme that fixes CO₂ in the mesophyll cells of C₄ plants is:
[1 Mark]
122.
The first stable product of CO₂ fixation in C₄ plants is:
[1 Mark]
123.
In C₄ plants, CO₂ fixation and the Calvin cycle occur in:
[1 Mark]
124.
Malate (a C₄ compound) in C₄ plants functions to:
[1 Mark]
125.
The term "Kranz anatomy" refers to:
[1 Mark]
126.
Compared to C₃ plants, C₄ plants typically:
[1 Mark]
127.
Which of the following is a characteristic of C₄ photosynthesis?
[1 Mark]
128.
In C₄ plants, the C₃ Calvin cycle takes place in the:
[1 Mark]
129.
Which of the following plants uses the C₄ pathway?
[1 Mark]
130.
Compared to C₃ plants on a hot, sunny day, C₄ plants (e.g. sugarcane) have higher net photosynthesis because:
[1 Mark]
131.
The two main C₄ acid products formed in the mesophyll cells are:
[1 Mark]
132.
In C₄ photosynthesis, the enzyme RuBisCO is found in:
[1 Mark]
133.
A key adaptation of C₄ plants to reduce photorespiration is:
[1 Mark]
134.
Compared to C₃ plants under the same conditions, C₄ plants generally require:
[1 Mark]
135.
The mesophyll and bundle sheath cells in C₄ plants are connected by:
[1 Mark]
136.
The CAM pathway is similar to C₄ in that both:
[1 Mark]
137.
CAM stands for:
[1 Mark]
138.
CAM plants fix CO₂:
[1 Mark]
139.
Which of the following is a typical CAM plant?
[1 Mark]
140.
The primary advantage of CAM plants is:
[1 Mark]
141.
In CAM plants, CO₂ uptake and initial fixation are separated by:
[1 Mark]
142.
The initial enzyme for CO₂ fixation in CAM plants is:
[1 Mark]
143.
CAM plants usually open their stomata:
[1 Mark]
144.
Which of the following is true for CAM plants?
[1 Mark]
145.
The 4 - carbon acid that accumulates in CAM plants at night is usually:
[1 Mark]
146.
Which statement is true for CAM plants?
[1 Mark]
147.
Compared to C₃ plants in the same environment, CAM plants:
[1 Mark]
148.
A plant that opens its stomata at night and fixes CO₂ into organic acids belongs to:
[1 Mark]
149.
In a CAM plant, phosphoenolpyruvate carboxylase (PEPcase) is active:
[1 Mark]
150.
Why do CAM plants oŌen grow very slowly?
[1 Mark]
151.
CAM plants are typically:
[1 Mark]
152.
Which of the following is a correct comparison of C₄ and CAM photosynthesis?
[1 Mark]
153.
In a CAM plant, malate accumulates in the:
[1 Mark]
154.
Kranz anatomy in plants refers to:
[1 Mark]
155.
Kranz anatomy is characteristic of which group of plants?
[1 Mark]
156.
In leaves with Kranz anatomy:
[1 Mark]
157.
Which feature is NOT typically associated with the bundle sheath cells in Kranz anatomy?
[1 Mark]
158.
The term 'Kranz' means:
[1 Mark]
159.
Kranz anatomy contributes to reduced photorespiration because:
[1 Mark]
160.
Which of the following is a C₄ plant with Kranz anatomy?
[1 Mark]
161.
In Kranz anatomy, which cells contain most of the chloroplasts?
[1 Mark]
162.
What is the main purpose of Kranz anatomy in leaves?
[1 Mark]
163.
Which type of Kranz anatomy is found in typical C₄ dicots?
[1 Mark]
164.
The bundle sheath cells in Kranz anatomy oŌen have:
[1 Mark]
165.
Which of the following is NOT a C₄ plant?
[1 Mark]
166.
Bundle sheath cells in C₄ plants differ from mesophyll cells in that:
[1 Mark]
167.
Kranz anatomy is absent in:
[1 Mark]
168.
How does Kranz anatomy reduce photorespiration?
[1 Mark]
169.
The presence of Kranz anatomy can be identified by:
[1 Mark]
170.
Which statement is true about Kranz anatomy?
[1 Mark]
171.
Where do the light - dependent reactions of photosynthesis take place?
[1 Mark]
172.
The Calvin cycle (light - independent reactions) takes place in the:
[1 Mark]
173.
In C₃ plants, the Calvin cycle occurs in:
[1 Mark]
174.
In a leaf cross - section of a C₄ plant, the cells that contain chloroplasts and perform the Calvin cycle are the:
[1 Mark]
175.
Photosystem I and II complexes are embedded in the:
[1 Mark]
176.
NADP⁺ reductase enzyme is located in:
[1 Mark]
177.
The oxygen - evolving complex (OEC) of photosynthesis is associated with:
[1 Mark]
178.
The enzyme RuBisCO is located in the:
[1 Mark]
179.
The stroma lamellae (unstacked thylakoids) lack which component?
[1 Mark]
180.
Where does the light - independent Calvin cycle occur?
[1 Mark]
181.
The conversion of carbon dioxide to carbohydrate (Calvin cycle) requires products from light reactions which are produced in:
[1 Mark]
182.
Where in the chloroplast does the reduction of 3 - PGA to G3P take place?
[1 Mark]
183.
The absorption of light by chlorophyll primarily occurs in:
[1 Mark]
184.
During photosynthesis, ATP is synthesized in the:
[1 Mark]
185.
The Calvin cycle utilizes ATP and NADPH produced in:
[1 Mark]
186.
Joseph Priestley’s experiments showed that:
[1 Mark]
187.
Jan Ingenhousz demonstrated that:
[1 Mark]
188.
Which scientist provided evidence that the oxygen evolved in photosynthesis comes from water?
[1 Mark]
189.
The Hill reaction (1937) demonstrated that isolated chloroplasts can produce:
[1 Mark]
190.
The Emerson enhancement effect proved the existence of:
[1 Mark]
191.
Julius von Sachs showed that:
[1 Mark]
192.
Engelmann’s experiment demonstrated that:
[1 Mark]
193.
Melvin Calvin used radioactive ¹⁴C to trace:
[1 Mark]
194.
Hill and Bendall (1960) proposed:
[1 Mark]
195.
Who is known as the father of radioisotope studies in plant physiology (Calvin cycle)?
[1 Mark]
196.
The correct overall equation for photosynthesis (6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂) was ultimately verified by:
[1 Mark]
197.
Jan Ingenhousz (1779) discovered that:
[1 Mark]
198.
Which phenomenon did Robert Hill demonstrate?
[1 Mark]
199.
The red drop effect is the phenomenon where:
[1 Mark]
200.
The Z - scheme and Emerson effect were demonstrated by:
[1 Mark]
201.
Which statement is true about the discoveries related to photosynthesis?
[1 Mark]
202.
Photolysis of water in photosynthesis is associated with:
[1 Mark]
203.
F1 particles are found in
[1 Mark]
204.
'Cristae' helps in
[1 Mark]
205.
Inner mitochondrial membrane forms folds. These are called:
[1 Mark]
206.
Which theory explains ATP synthesis in chloroplasts and mitochondria?
[1 Mark]
207.
F₁ – F₀ ATP synthase is located in:
[1 Mark]
208.
The F₁ portion of ATP synthase:
[1 Mark]
209.
Cristae are infoldings of:
[1 Mark]
210.
The function of cristae is to:
[1 Mark]
211.
Oxysomes (F₁ particles) are found on:
[1 Mark]
212.
The chemiosmotic hypothesis was proposed by:
[1 Mark]
213.
In chemiosmosis, ATP synthesis is driven by:
[1 Mark]
214.
The proton gradient across the inner mitochondrial membrane is:
[1 Mark]
215.
The enzyme ATP synthase is also known as:
[1 Mark]
216.
Which component of ATP synthase rotates during catalysis?
[1 Mark]
217.
The number of c - subunits in the rotor of mitochondrial ATP synthase is typically:
[1 Mark]
218.
Inhibitor of ATP synthase (Complex V) is:
[1 Mark]
219.
Uncoupler of oxidative phosphorylation that dissipates proton gradient is:
[1 Mark]
220.
Which statement about F₁ particles is INCORRECT?
[1 Mark]
221.
Mitochondria are absent in:
[1 Mark]
222.
The inner mitochondrial membrane is permeable to:
[1 Mark]
223.
The site of Krebs cycle in mitochondria is:
[1 Mark]
224.
The site of ETS in mitochondria is:
[1 Mark]
225.
Which ion movement is directly coupled to ATP synthesis in mitochondria?
[1 Mark]
226.
The number of ATP molecules synthesised per pair of electrons from NADH in modern estimation is:
[1 Mark]
227.
Embden - Meyerhof pathway represents
[1 Mark]
228.
Number of oxygen molecules required during glycolysis of one glucose molecule is
[1 Mark]
229.
In a yeast cell one glucose molecule produces a net ATP:
[1 Mark]
230.
The end product of glycolysis is
[1 Mark]
231.
Which is not true about glycolysis?
[1 Mark]
232.
The net ATP gain in glycolysis (per glucose) is:
[1 Mark]
233.
The gross ATP production in glycolysis is:
[1 Mark]
234.
How many NADH are produced in glycolysis per glucose?
[1 Mark]
235.
The enzyme hexokinase requires which ion as cofactor?
[1 Mark]
236.
Phosphofructokinase (PFK) is allosterically inhibited by:
[1 Mark]
237.
The enzyme that converts glucose to glucose - 6 - phosphate is:
[1 Mark]
238.
Aldolase splits fructose - 1,6 - bisphosphate into:
[1 Mark]
239.
Triose phosphate isomerase converts:
[1 Mark]
240.
Substrate - level phosphorylation in glycolysis occurs at:
[1 Mark]
241.
The enzyme enolase converts:
[1 Mark]
242.
Fluoride inhibits glycolysis by targeting:
[1 Mark]
243.
Iodoacetate inhibits glycolysis by inhibiting:
[1 Mark]
244.
In anaerobic conditions in yeast, pyruvate is converted to:
[1 Mark]
245.
In anaerobic conditions in muscle, pyruvate is converted to:
[1 Mark]
246.
The enzyme that converts pyruvate to lactate is:
[1 Mark]
247.
The enzyme that converts pyruvate to acetaldehyde in yeast is:
[1 Mark]
248.
Alcohol dehydrogenase converts:
[1 Mark]
249.
Fermentation yields how many ATP per glucose?
[1 Mark]
250.
Glycolysis is also known as:
[1 Mark]
251.
The substrate for glycolysis is:
[1 Mark]
252.
The enzyme phosphoglycerate kinase produces:
[1 Mark]
253.
Gluconeogenesis is the synthesis of:
[1 Mark]
254.
The main site of gluconeogenesis in mammals is:
[1 Mark]
255.
Which hormone stimulates gluconeogenesis?
[1 Mark]
256.
Pyruvic acid before combining with oxaloacetic acid of citric acid cycle becomes
[1 Mark]
257.
Which of the following occurs in mitochondria?
[1 Mark]
258.
How many ATP can be formed from one acetyl co - A in Kreb's cycle?
[1 Mark]
259.
Krebs cycle occurs in:
[1 Mark]
260.
The connecting link between glycolysis and Krebs cycle is:
[1 Mark]
261.
The enzyme that converts pyruvate to acetyl CoA is:
[1 Mark]
262.
The first product of Krebs cycle is:
[1 Mark]
263.
The enzyme that condenses acetyl CoA with oxaloacetate is:
[1 Mark]
264.
How many NADH are produced per acetyl CoA in one Krebs cycle turn?
[1 Mark]
265.
How many FADH₂ are produced per acetyl CoA in Krebs cycle?
[1 Mark]
266.
How many ATP (GTP) are produced per acetyl CoA in Krebs cycle?
[1 Mark]
267.
How many CO₂ molecules are released per acetyl CoA in Krebs cycle?
[1 Mark]
268.
The enzyme that converts isocitrate to α - ketoglutarate is:
[1 Mark]
269.
Succinate dehydrogenase converts succinate to:
[1 Mark]
270.
Succinate dehydrogenase is unique because it:
[1 Mark]
271.
Malate dehydrogenase converts malate to:
[1 Mark]
272.
Fluoroacetate poisoning blocks Krebs cycle by inhibiting:
[1 Mark]
273.
Arsenite inhibits Krebs cycle by targeting:
[1 Mark]
274.
The amphibolic nature of Krebs cycle means it:
[1 Mark]
275.
Which Krebs cycle intermediate is used for heme synthesis?
[1 Mark]
276.
Which Krebs cycle intermediate is used for glutamate synthesis?
[1 Mark]
277.
One molecule of glucose yields how many turns of Krebs cycle?
[1 Mark]
278.
Total ATP yield from one acetyl CoA via oxidative phosphorylation (modern estimate) is approximately:
[1 Mark]
279.
Final acceptor of electrons in aerobic respiration is:
[1 Mark]
280.
What is the correct sequence of cytochromes in ETS?
[1 Mark]
281.
Main method of faƩy acid oxidation in a cell is:
[1 Mark]
282.
The final electron acceptor in aerobic respiration is:
[1 Mark]
283.
Cytochrome oxidase (Complex IV) transfers electrons to:
[1 Mark]
284.
The correct sequence of electron carriers in ETS is:
[1 Mark]
285.
Complex I of ETS is:
[1 Mark]
286.
Complex II of ETS is:
[1 Mark]
287.
Complex III of ETS is:
[1 Mark]
288.
Complex IV of ETS is:
[1 Mark]
289.
The mobile electron carrier between Complex III and Complex IV is:
[1 Mark]
290.
The mobile electron carrier between Complex I/II and Complex III is:
[1 Mark]
291.
Rotenone inhibits:
[1 Mark]
292.
Antimycin A inhibits:
[1 Mark]
293.
Cyanide and carbon monoxide inhibit:
[1 Mark]
294.
The number of protons pumped by Complex I per pair of electrons is:
[1 Mark]
295.
The number of protons pumped by Complex III per pair of electrons is:
[1 Mark]
296.
The number of protons pumped by Complex IV per pair of electrons is:
[1 Mark]
297.
β - oxidation of faƩy acids occurs in:
[1 Mark]
298.
Each cycle of β - oxidation produces:
[1 Mark]
299.
Carnitine shuƩle is required for:
[1 Mark]
300.
The P/O ratio for NADH is:
[1 Mark]
301.
The P/O ratio for FADH₂ is:
[1 Mark]
302.
R.O. stands for:
[1 Mark]
303.
If RQ is 0.7 the respiratory substrate will be:
[1 Mark]
304.
Respiratory quotient is not less than one in
[1 Mark]
305.
Respiratory Quotient (RQ) of organic acid is
[1 Mark]
306.
RQ for carbohydrates is:
[1 Mark]
307.
RQ for fats (e.g., tripalmitin) is approximately:
[1 Mark]
308.
RQ for proteins is approximately:
[1 Mark]
309.
RQ for organic acids like oxalic acid is:
[1 Mark]
310.
RQ for succulents (CAM plants) during night is:
[1 Mark]
311.
RQ for germinating faƩy seeds (castor, sunflower) is:
[1 Mark]
312.
RQ for aerobic respiration of glucose is:
[1 Mark]
313.
RQ for anaerobic respiration is:
[1 Mark]
314.
RQ of 1 indicates:
[1 Mark]
315.
RQ less than 1 indicates:
[1 Mark]
316.
RQ greater than 1 indicates:
[1 Mark]
317.
The RQ of tripalmitin (C₅₁H₉₈O₆) is:
[1 Mark]
318.
RQ can be measured using:
[1 Mark]
319.
In a germinating groundnut seed, RQ is initially:
[1 Mark]
320.
When carbohydrates are respiratory substrate, RQ = 1 because:
[1 Mark]
321.
RQ of anaerobic respiration of glucose in yeast is:
[1 Mark]
322.
Which substrate gives the highest RQ?
[1 Mark]
323.
RQ of a mixture of carbohydrates and fats will be:
[1 Mark]
324.
RQ of proteins is about 0.8 – 0.9 because:
[1 Mark]
325.
Structure helping Lichens in respiration is
[1 Mark]
326.
Pneumatophores are special type of modified root which help in:
[1 Mark]
327.
Cyphella in lichens is a:
[1 Mark]
328.
Cyphellae are found in which group of lichens?
[1 Mark]
329.
Pneumatophores are seen in plants growing in:
[1 Mark]
330.
Example of a plant with pneumatophores:
[1 Mark]
331.
Pneumatophores contain small openings called:
[1 Mark]
332.
Anaerobic respiration in plant roots occurs when:
[1 Mark]
333.
Cyanide - resistant respiration in plants is mediated by:
[1 Mark]
334.
Alternative oxidase is located in:
[1 Mark]
335.
The electron donor for alternative oxidase pathway is:
[1 Mark]
336.
Alternative oxidase pathway produces:
[1 Mark]
337.
Cyanide - resistant respiration is also called:
[1 Mark]
338.
Thermogenesis in Arum lily spadix is due to:
[1 Mark]
339.
The physiological significance of cyanide - resistant respiration in plants is:
[1 Mark]
340.
In waterlogged conditions, plants accumulate:
[1 Mark]
341.
Rice plants can tolerate waterlogging because:
[1 Mark]
342.
In bacteria, the respiratory enzymes are located on
[1 Mark]
343.
Mesosomes are infoldings of:
[1 Mark]
344.
Functions of mesosomes include:
[1 Mark]
345.
In aerobic bacteria, ETS components are located on:
[1 Mark]
346.
Which of the following bacteria lacks mesosomes?
[1 Mark]
347.
Bacterial cytochromes are located:
[1 Mark]
348.
Anaerobic bacteria obtain energy by:
[1 Mark]
349.
The site of respiratory chain in prokaryotes is:
[1 Mark]
350.
Bacteria lack which organelle for respiration?
[1 Mark]
351.
ATP synthesis in bacteria occurs at:
[1 Mark]
352.
Mesosomes are also involved in:
[1 Mark]
353.
In frog, glottis is controlled by the muscles of
[1 Mark]
354.
Chloride ShiŌ is related with:
[1 Mark]
355.
Creatine Phosphate is found in:
[1 Mark]
356.
One litre of blood carries how much oxygen to the body tissues?
[1 Mark]
357.
Carbon monoxide is harmful to human beings as it is:
[1 Mark]
358.
The blood of Pheritima is red due to the presence of
[1 Mark]
359.
In chloride shiŌ, Cl⁻ ions move into:
[1 Mark]
360.
Hamburger's phenomenon maintains:
[1 Mark]
361.
Carbon monoxide binds to haemoglobin at the same site as:
[1 Mark]
362.
The affinity of haemoglobin for CO is approximately:
[1 Mark]
363.
Oxygen dissociation curve shiŌs to the right (Bohr effect) due to:
[1 Mark]
364.
Bohr effect favours:
[1 Mark]
365.
The pigment in earthworm's blood is:
[1 Mark]
366.
Haemocyanin contains which metal?
[1 Mark]
367.
Haemocyanin is found in:
[1 Mark]
368.
Cockroach blood is colourless because:
[1 Mark]
369.
Normal oxygen - carrying capacity of human blood is:
[1 Mark]
370.
Each gram of haemoglobin can carry approximately how much oxygen?
[1 Mark]
371.
The majority of CO₂ in blood is transported as:
[1 Mark]
372.
Carbonic anhydrase is present in:
[1 Mark]
373.
Tidal volume (TV) is approximately:
[1 Mark]
374.
Inspiratory reserve volume (IRV) is approximately:
[1 Mark]
375.
Expiratory reserve volume (ERV) is approximately:
[1 Mark]
376.
Residual volume (RV) is approximately:
[1 Mark]
377.
Vital capacity (VC) = ?
[1 Mark]
378.
Total lung capacity (TLC) = ?
[1 Mark]
379.
Inspiratory capacity (IC) = ?
[1 Mark]
380.
Functional residual capacity (FRC) = ?
[1 Mark]
381.
The normal respiratory rate in adult humans is:
[1 Mark]
382.
The respiratory centre is located in:
[1 Mark]
383.
Hering - Breuer reflex is associated with:
[1 Mark]
384.
Pneumotaxic centre is present in:
[1 Mark]
385.
Apneustic centre is present in:
[1 Mark]
386.
Double respiration (air sacs) is characteristic of:
[1 Mark]
387.
Which cartilage controls the glottis in mammals?
[1 Mark]
388.
ATP is
[1 Mark]
389.
Metabolic water is a by - product of the process of
[1 Mark]
390.
Metabolic water is produced during:
[1 Mark]
391.
One molecule of glucose on complete oxidation yields how many molecules of metabolic water?
[1 Mark]
392.
ATP is called energy currency because:
[1 Mark]
393.
The high - energy bonds in ATP are between:
[1 Mark]
394.
How many high - energy bonds are present in ATP?
[1 Mark]
395.
ATP on hydrolysis yields:
[1 Mark]
396.
The ∆G°' of ATP hydrolysis is approximately:
[1 Mark]
397.
Which organelle produces maximum ATP in a eukaryotic cell?
[1 Mark]
398.
Metabolic water is most important for:
[1 Mark]
399.
Which metabolic process produces the most water per gram of substrate?
[1 Mark]
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