ACME ACADEMY

WEEKLY EVALUATION TEST

Subject: Science
Time Limit: 20 Mins
Max Marks: 20 Marks
Student Name:
Roll Number:
Class / Sec:
Date:

GENERAL INSTRUCTIONS:

  1. All questions are compulsory. Carefully read all instructions before starting.
  2. The question paper contains 20 questions.
  3. There is no negative marking for incorrect answers.
  4. Use of mobile phones, smartwatches, or calculators is strictly prohibited during the exam.
1. Which of the following is the correct sequence of steps occurring during photosynthesis?
[1 Mark]
(A) Absorption of light energy, Reduction of CO2, Splitting of water
(B) Absorption of light energy, Splitting of water, Reduction of CO2
(C) Splitting of water, Absorption of light energy, Reduction of CO2
(D) Reduction of CO2, Absorption of light energy, Splitting of water
2. What is the primary function of the enzyme salivary amylase present in human saliva?
[1 Mark]
(A) Breakdown of proteins into amino acids
(B) Breakdown of complex starch into simple sugars
(C) Emulsification of fats
(D) Absorption of vitamins
3. During vigorous physical exercise, cramps occur in our leg muscles due to the accumulation of:
[1 Mark]
(A) Carbon dioxide
(B) Lactic acid
(C) Alcohol
(D) Water
4. In which part of the respiratory system does the actual exchange of gases take place?
[1 Mark]
(A) Trachea
(B) Bronchi
(C) Alveoli
(D) Pharynx
5. What is the role of the rings of cartilage present in the human throat (trachea)?
[1 Mark]
(A) They purify the inhaled air
(B) They prevent the air passage from collapsing
(C) They produce sound vibrations
(D) They increase the surface area for gas exchange
6. Which component of blood is responsible for the transport of oxygen from the lungs to the body cells?
[1 Mark]
(A) White blood cells
(B) Platelets
(C) Plasma
(D) Red blood cells (Haemoglobin)
7. The xylem in plants is primarily responsible for:
[1 Mark]
(A) Transport of water and minerals
(B) Transport of food (amino acids and sugars)
(C) Transport of oxygen
(D) Excretion of waste products
8. In the human heart, which chamber receives oxygenated blood from the lungs via the pulmonary veins?
[1 Mark]
(A) Right atrium
(B) Left atrium
(C) Right ventricle
(D) Left ventricle
9. The basic filtration unit in the human kidney is called:
[1 Mark]
(A) Neuron
(B) Nephron
(C) Ureter
(D) Alveolus
10. Which of the following organisms exhibits a parasitic mode of nutrition?
[1 Mark]
(A) Amoeba
(B) Mushroom
(C) Cuscuta (Amar-bel)
(D) Green plants
11. The inner lining of the stomach is protected from the harmful action of hydrochloric acid by:
[1 Mark]
(A) Pepsin
(B) Mucus
(C) Bile
(D) Trypsin
12. Where is bile juice synthesized in the human body?
[1 Mark]
(A) Gall bladder
(B) Pancreas
(C) Liver
(D) Stomach
13. The loss of water in the form of vapour from the aerial parts of a plant is known as:
[1 Mark]
(A) Translocation
(B) Transpiration
(C) Guttation
(D) Respiration
14. Which blood vessels carry blood away from the heart to various organs and have thick elastic walls?
[1 Mark]
(A) Veins
(B) Capillaries
(C) Arteries
(D) Vena Cava
15. Which of the following describes the process of translocation in plants?
[1 Mark]
(A) Evaporation of water from stomata
(B) Movement of synthesized food from leaves to other parts
(C) Absorption of light energy by chlorophyll
(D) Exchange of gases in roots
16. In yeast, the anaerobic breakdown of pyruvate results in the formation of:
[1 Mark]
(A) Lactic acid and energy
(B) Carbon dioxide, water and energy
(C) Ethanol, carbon dioxide and energy
(D) Glucose and oxygen
17. What regulates the opening and closing of stomatal pores in leaves?
[1 Mark]
(A) Guard cells
(B) Epidermal cells
(C) Xylem vessels
(D) Phloem sieve tubes
18. The completely digested food is primarily absorbed in the:
[1 Mark]
(A) Large intestine
(B) Stomach
(C) Small intestine
(D) Liver
19. Double circulation is a characteristic feature of which of the following groups of animals?
[1 Mark]
(A) Fish
(B) Amphibians
(C) Reptiles
(D) Birds and Mammals
20. Artificial kidney is a device to remove nitrogenous waste products from the blood through:
[1 Mark]
(A) Dialysis
(B) Diuresis
(C) Osmosis
(D) Active transport

Official Answer Key (For Teachers)

Q1
B
Q2
B
Q3
B
Q4
C
Q5
B
Q6
D
Q7
A
Q8
B
Q9
B
Q10
C
Q11
B
Q12
C
Q13
B
Q14
C
Q15
B
Q16
C
Q17
A
Q18
C
Q19
D
Q20
A
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