ACME ACADEMY

WEEKLY EVALUATION TEST

Subject: Biology
Time Limit: 45 Mins
Max Marks: 100 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 50 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. The edible part of a Pineapple (Ananas comosus) is the:
[2 Marks]
(A) Mesocarp and Endocarp
(B) Fleshy thalamus
(C) Bracts, perianth, and seeds
(D) Fleshy axis, bracts, and perianth
2. Which wood is primarily used for manufacturing cricket bats?
[2 Marks]
(A) Morus alba
(B) Salix alba
(C) Tectona grandis
(D) Shorea robusta
3. The wood of Morus alba (Mulberry) is famous for making:
[2 Marks]
(A) Railway sleepers
(B) Matches
(C) Hockey sticks and sports goods
(D) Plywood
4. Commercial cork, used in bottle stoppers, is obtained from the bark of:
[2 Marks]
(A) Quercus suber
(B) Pinus roxburghii
(C) Cedrus deodara
(D) Eucalyptus globulus
5. Saffron (Kesar) belongs to the family:
[2 Marks]
(A) Liliaceae
(B) Iridaceae
(C) Zingiberaceae
(D) Orchidaceae
6. 'Bidi' wrappers are made from the dried leaves of:
[2 Marks]
(A) Tectona grandis
(B) Diospyros melanoxylon
(C) Butea monosperma
(D) Ficus benghalensis
7. Water chestnut (Singhara) is botanically known as Trapa bispinosa. What is its edible part?
[2 Marks]
(A) Endosperm
(B) Fleshy thalamus
(C) Cotyledons
(D) Pericarp
8. Fox nut (Makhana) is derived from the seeds of:
[2 Marks]
(A) Nelumbo nucifera
(B) Euryale ferox
(C) Nymphaea alba
(D) Victoria amazonica
9. The cardiovascular drug digitalin is obtained from the leaves of:
[2 Marks]
(A) Digitalis purpurea
(B) Atropa belladonna
(C) Papaver somniferum
(D) Rauvolfia serpentina
10. Manila hemp, used for making marine ropes, is extracted from the leaves of:
[2 Marks]
(A) Cannabis sativa
(B) Crotalaria juncea
(C) Musa textilis
(D) Agave sisalana
11. Indigo, a historic blue dye, is obtained from the of Indigofera tinctoria.
[2 Marks]
(A) Roots
(B) Flowers
(C) Seeds
(D) Leaves
12. The edible part of a Tomato (Lycopersicon esculentum) is the:
[2 Marks]
(A) Pericarp and placenta
(B) Thalamus
(C) Mesocarp only
(D) Endocarp and seed
13. Hevea brasiliensis (Para rubber tree) belongs to the family:
[2 Marks]
(A) Moraceae
(B) Euphorbiaceae
(C) Apocynaceae
(D) Sapotaceae
14. Sunn hemp (Crotalaria juncea), a bast fiber, belongs to the family:
[2 Marks]
(A) Malvaceae
(B) Tiliaceae
(C) Fabaceae (Leguminosae)
(D) Linaceae
15. Edible part of the Jackfruit (Artocarpus heterophyllus) is:
[2 Marks]
(A) Bracts, perianth, and seeds
(B) Fleshy thalamus
(C) Mesocarp
(D) Endosperm
16. Which of the following yields a dye from its flowers (corolla)?
[2 Marks]
(A) Carthamus tinctorius (Safflower)
(B) Lawsonia inermis (Henna)
(C) Indigofera tinctoria (Indigo)
(D) Bixa orellana (Annatto)
17. Coriander (Coriandrum sativum) produces a fruit botanically classified as a:
[2 Marks]
(A) Capsule
(B) Cremocarp
(C) Siliqua
(D) Berry
18. The edible part of an Onion (Allium cepa) is the:
[2 Marks]
(A) Modified stem
(B) Fleshy scale leaves
(C) Adventitious roots
(D) Floral buds
19. Which plant yields an important anti-malarial drug from its roots?
[2 Marks]
(A) Cinchona officinalis
(B) Artemisia annua
(C) Dichroa febrifuga
(D) None of the above; Cinchona yields it from bark.
20. Garlic (Allium sativum) is morphologically a:
[2 Marks]
(A) Simple tunicated bulb
(B) Compound tunicated bulb
(C) Scaly bulb
(D) Corm
21. The sweet potato (Ipomoea batatas) is an economically important:
[2 Marks]
(A) Stem tuber
(B) Root tuber (Adventitious root)
(C) Tap root modification
(D) Rhizome
22. Tapioca (Cassava/Sago substitute) is obtained from the roots of:
[2 Marks]
(A) Manihot esculenta
(B) Maranta arundinacea
(C) Colocasia esculenta
(D) Dioscorea alata
23. Which pulse crop is known to contain a neurotoxin causing 'Lathyrism' if consumed in excess?
[2 Marks]
(A) Cajanus cajan
(B) Lens culinaris
(C) Lathyrus sativus
(D) Vigna radiata
24. Botanical name of Soyabean is:
[2 Marks]
(A) Glycine max
(B) Arachis hypogaea
(C) Cicer arietinum
(D) Pisum sativum
25. A grain of Wheat or Maize is structurally a:
[2 Marks]
(A) Seed
(B) True Fruit (Caryopsis)
(C) Aril
(D) Multiple fruit
26. The edible part of a Grape (Vitis vinifera) is the:
[2 Marks]
(A) Mesocarp and endocarp
(B) Pericarp and placenta
(C) Fleshy thalamus
(D) Endosperm
27. Henna/Mehendi is obtained from the leaves of:
[2 Marks]
(A) Bixa orellana
(B) Rubia cordifolia
(C) Lawsonia inermis
(D) Wrightia tinctoria
28. Essential oil of Rose (Attar) is primarily extracted from the:
[2 Marks]
(A) Leaves
(B) Petals
(C) Receptacle
(D) Seeds
29. The stimulant drug Ginseng is derived from the:
[2 Marks]
(A) Leaves of Panax ginseng
(B) Roots of Panax ginseng
(C) Seeds of Ginkgo biloba
(D) Bark of Panax ginseng
30. Clove (Syzygium aromaticum) belongs to the family:
[2 Marks]
(A) Myrtaceae
(B) Lauraceae
(C) Piperaceae
(D) Zingiberaceae
31. The edible part of Guava (Psidium guajava) is:
[2 Marks]
(A) Mesocarp only
(B) Endocarp
(C) Thalamus and Pericarp
(D) Fleshy aril
32. Wood used for making matchsticks is typically derived from:
[2 Marks]
(A) Pinus and Populus
(B) Tectona and Dalbergia
(C) Shorea and Acacia
(D) Quercus and Salix
33. The active principle of the Neem tree (Azadirachta indica), used as a bio-pesticide, is:
[2 Marks]
(A) Nicotine
(B) Azadirachtin
(C) Pyrethrin
(D) Rotenone
34. Edible part of Papaya (Carica papaya) is the:
[2 Marks]
(A) Epicarp
(B) Mesocarp
(C) Endocarp
(D) Seed
35. Eucalyptus oil is primarily extracted from the:
[2 Marks]
(A) Bark
(B) Roots
(C) Leaves
(D) Flowers
36. Pulses (Dal) belong to which specific sub-family of Leguminosae?
[2 Marks]
(A) Caesalpinioideae
(B) Mimosoideae
(C) Papilionoideae
(D) Faboideae
37. Aloe vera yields medicinal compounds from its:
[2 Marks]
(A) Roots
(B) Succulent leaves
(C) Rhizome
(D) Seeds
38. Which of the following is known as 'Indian Gooseberry' and is a rich source of Vitamin C?
[2 Marks]
(A) Emblica officinalis (Amla)
(B) Ziziphus mauritiana (Ber)
(C) Aegle marmelos (Bael)
(D) Syzygium cumini (Jamun)
39. Atropa belladonna, Withania somnifera, and Datura stramonium all belong to the family:
[2 Marks]
(A) Apocynaceae
(B) Solanaceae
(C) Malvaceae
(D) Lamiaceae
40. Gum Arabic is commercially tapped from the bark of:
[2 Marks]
(A) Acacia catechu
(B) Acacia senegal
(C) Ficus religiosa
(D) Commiphora wightii
41. The drug 'Artemisinin', highly effective against drug-resistant malaria, is obtained from:
[2 Marks]
(A) Artemisia annua
(B) Cinchona calisaya
(C) Swertia chirayita
(D) Andrographis paniculata
42. Fennel (Saunf) belongs to the botanical family:
[2 Marks]
(A) Apiaceae (Umbelliferae)
(B) Lamiaceae
(C) Asteraceae
(D) Myrtaceae
43. The edible portion of a Fig (Anjeer) is the:
[2 Marks]
(A) Pericarp
(B) Fleshy receptacle
(C) Bracts
(D) Seeds
44. Rauvolfia serpentina (Sarpagandha) belongs to the family:
[2 Marks]
(A) Solanaceae
(B) Apocynaceae
(C) Rubiaceae
(D) Liliaceae
45. Which of the following plants provides both a commercial oil and a structural fiber?
[2 Marks]
(A) Cocos nucifera (Coconut)
(B) Corchorus capsularis (Jute)
(C) Papaver somniferum (Opium)
(D) Crotalaria juncea (Sunn hemp)
46. Ginger (Zingiber officinale) is a modified:
[2 Marks]
(A) Root
(B) Rhizome (Underground stem)
(C) Tuber
(D) Corm
47. Sisal hemp, used heavily for making twine and dartboards, is obtained from:
[2 Marks]
(A) Cannabis sativa
(B) Agave sisalana
(C) Musa textilis
(D) Boehmeria nivea
48. Cumin (Jeera) is botanically known as:
[2 Marks]
(A) Coriandrum sativum
(B) Cuminum cyminum
(C) Trachyspermum ammi
(D) Foeniculum vulgare
49. The drug 'Colchicine', used to induce polyploidy in plants, is extracted from the of Colchicum autumnale.
[2 Marks]
(A) Leaves
(B) Flowers
(C) Corms and seeds
(D) Fruit pericarp
50. True wood, commercially used as timber, is botanically formed by:
[2 Marks]
(A) Primary xylem
(B) Secondary xylem
(C) Secondary phloem
(D) Cambium

Official Answer Key (For Teachers)

Q1
D
Q2
B
Q3
C
Q4
A
Q5
B
Q6
B
Q7
C
Q8
B
Q9
A
Q10
C
Q11
D
Q12
A
Q13
B
Q14
C
Q15
A
Q16
A
Q17
B
Q18
B
Q19
D
Q20
B
Q21
B
Q22
A
Q23
C
Q24
A
Q25
B
Q26
B
Q27
C
Q28
B
Q29
B
Q30
A
Q31
C
Q32
A
Q33
B
Q34
B
Q35
C
Q36
C
Q37
B
Q38
A
Q39
B
Q40
B
Q41
A
Q42
A
Q43
B
Q44
B
Q45
A
Q46
B
Q47
B
Q48
B
Q49
C
Q50
B
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