A Set of Botany CEE-2

Posted by Nepal Quiz

الجمعة، 27 ديسمبر 2024

_Botany

A Set of Botany CEE-2

 

1. Which of the following is the smallest flowering plant?
   a. Wolffia
   b. Lemna
   c. Utricularia
   d. Azolla

2. What is the function of lenticels in plants?
   a. Photosynthesis
   b. Gaseous exchange
   c. Transpiration
   d. Conduction of water

3. Which hormone is responsible for seed dormancy?
   a. Abscisic acid
   b. Gibberellin
   c. Cytokinin
   d. Auxin

4. The cork cambium is also known as:
   a. Phellogen
   b. Periderm
   c. Phelloderm
   d. Phloem

5. In the Calvin cycle, the first stable product is:
   a. 3-phosphoglycerate
   b. Glucose
   c. Ribulose bisphosphate
   d. Oxaloacetate

6. Which element is required for the synthesis of chlorophyll?
   a. Nitrogen
   b. Magnesium
   c. Iron
   d. Sulfur

7. Vascular bundles in dicot stems are:
   a. Closed and scattered
   b. Open and arranged in a ring
   c. Closed and radial
   d. Open and scattered

8. Which type of reproduction occurs in spirogyra?
   a. Vegetative
   b. Asexual
   c. Sexual
   d. All of the above

9. The reserve food material in fungi is:
   a. Glycogen
   b. Starch
   c. Lipids
   d. Cellulose

10. Casparian strips are found in:
    a. Epidermis
    b. Endodermis
    c. Pericycle
    d. Cortex

11. Which of the following is a C4 plant?
    a. Rice
    b. Wheat
    c. Maize
    d. Potato

12. The structure responsible for water transport in plants is:
    a. Phloem
    b. Xylem
    c. Cortex
    d. Epidermis

13. Apical dominance in plants is caused by:
    a. Auxin
    b. Gibberellin
    c. Cytokinin
    d. Ethylene

14. Which of the following is a nitrogen-fixing bacterium?
    a. Rhizobium
    b. Mycorrhiza
    c. Agrobacterium
    d. Azotobacter

15. The primary function of root hairs is:
    a. Conduction
    b. Anchorage
    c. Absorption
    d. Storage

16. Which algae is used as a source of agar?
    a. Gelidium
    b. Chlorella
    c. Spirulina
    d. Laminaria

17. Double fertilization is unique to:
    a. Algae
    b. Gymnosperms
    c. Angiosperms
    d. Bryophytes

18. The enzyme Rubisco is involved in:
    a. Photorespiration
    b. Nitrogen fixation
    c. Carbon fixation
    d. Water splitting

19. Transpiration is least in:
    a. Sunny days
    b. Windy conditions
    c. High humidity
    d. Low humidity

20. The term "totipotency" refers to:
    a. Cell differentiation
    b. Cell division
    c. The ability of a cell to develop into a complete plant
    d. None of the above

21. Which pigment is responsible for red, orange, and yellow colors in plants?
    a. Chlorophyll
    b. Carotenoids
    c. Anthocyanins
    d. Xanthophylls

22. Mycorrhizae are associations between:
    a. Algae and fungi
    b. Roots and fungi
    c. Roots and bacteria
    d. Fungi and insects

23. The smallest unit of classification in taxonomy is:
    a. Genus
    b. Species
    c. Order
    d. Family

24. Which plant hormone promotes fruit ripening?
    a. Auxin
    b. Cytokinin
    c. Ethylene
    d. Gibberellin

25. The study of pollen grains is known as:
    a. Cytology
    b. Palynology
    c. Mycology
    d. Phycology

26. Gymnosperms are characterized by the absence of:
    a. Seeds
    b. Flowers
    c. Vascular tissue
    d. Roots

27. The process of guttation occurs through:
    a. Stomata
    b. Hydathodes
    c. Lenticels
    d. Epidermis

28. Which of the following is a xerophytic adaptation?
    a. Thick cuticle
    b. Large leaves
    c. Stomata on both sides
    d. Thin cuticle

29. The first stage of mitosis is:
    a. Anaphase
    b. Telophase
    c. Prophase
    d. Metaphase

30. The main photosynthetic pigment is:
    a. Chlorophyll a
    b. Chlorophyll b
    c. Xanthophyll
    d. Carotenoids

31. In Bryophytes, the dominant generation is:
    a. Gametophyte
    b. Sporophyte
    c. Zygote
    d. None of the above

32. Plants in desert regions primarily use which photosynthetic pathway?
    a. C3
    b. C4
    c. CAM
    d. All of the above

33. The edible part of the coconut is:
    a. Pericarp
    b. Endosperm
    c. Cotyledon
    d. Embryo

34. Vernalization is the:
    a. Response to photoperiod
    b. Induction of flowering by low temperature
    c. Response to light intensity
    d. Response to water availability

35. The study of seeds is called:
    a. Carpology
    b. Palynology
    c. Spermatology
    d. Cytology

36. The largest angiosperm family is:
    a. Fabaceae
    b. Asteraceae
    c. Orchidaceae
    d. Poaceae

37. In respiration, the terminal electron acceptor is:
    a. NADH
    b. FADH2
    c. Oxygen
    d. ATP

38. Which of the following is a free-floating aquatic plant?
    a. Eichhornia
    b. Mango
    c. Neem
    d. Banyan

39. In monocots, the vascular bundles are:
    a. Scattered
    b. Arranged in a ring
    c. Open
    d. Lateral

40. Pollination by wind is called:
    a. Hydrophily
    b. Entomophily
    c. Anemophily
    d. Zoophily

Answer Key:
1-a, 2-b, 3-a, 4-a, 5-a, 6-b, 7-b, 8-d, 9-a, 10-b, 11-c, 12-b, 13-a, 14-a, 15-c, 16-a, 17-c, 18-c, 19-c, 20-c, 21-b, 22-b, 23-b, 24-c, 25-b, 26-b, 27-b, 28-a, 29-c, 30-a, 31-a, 32-c, 33-b, 34-b, 35-a, 36-c, 37-c, 38-a, 39-a, 40-c