MCQ Biology Chapter 5: MORPHOLOGY OF FLOWERING PLANTS, HS 1st year

 

MCQs on Morphology of Flowering Plants

1. What is the function of the root cap in a plant?
   A. Absorption of water
   B. Photosynthesis
   C. Protection of the root tip
   D. Transport of nutrients
   Answer: C. Protection of the root tip

2. In which type of roots are the primary roots replaced by multiple roots originating from the base of the stem?
   A. Tap roots
   B. Fibrous roots
   C. Adventitious roots
   D. Lateral roots
   Answer: B. Fibrous roots

3. Which of the following is a characteristic feature of monocot leaves?
   A. Reticulate venation
   B. Pinnately compound leaves
   C. Parallel venation
   D. Pulvinus base
   Answer: C. Parallel venation

4. Which term describes the arrangement of veins forming a network in a leaf?
   A. Parallel venation
   B. Reticulate venation
   C. Pinnate venation
   D. Radial venation
   Answer: B. Reticulate venation

5. What is the typical venation pattern observed in dicotyledonous plants?
   A. Parallel
   B. Reticulate
   C. Spiral
   D. Mixed
   Answer: B. Reticulate

6. In which type of inflorescence does the main axis terminate in a flower?
   A. Racemose
   B. Cymose
   C. Spike
   D. Umbel
   Answer: B. Cymose

7. What is a flower that contains both androecium and gynoecium called?
   A. Unisexual
   B. Bisexual
   C. Actinomorphic
   D. Zygomorphic
   Answer: B. Bisexual

8. Which type of placentation is found in the pea plant?
   A. Axile
   B. Basal
   C. Marginal
   D. Parietal
   Answer: C. Marginal

9. What is the function of the aleurone layer in monocot seeds?
   A. Absorption of nutrients
   B. Protection of the embryo
   C. Storage of proteins
   D. Synthesis of plant hormones
   Answer: C. Storage of proteins

10. Which family is commonly referred to as the 'potato family'?
    A. Fabaceae
    B. Solanaceae
    C. Liliaceae
    D. Asteraceae
    Answer: B. Solanaceae

11. Which structure of the seed develops into the shoot during germination?
    A. Radicle
    B. Plumule
    C. Endosperm
    D. Scutellum
    Answer: B. Plumule

12. What is the term for the pattern of arrangement of leaves on the stem or branch?
    A. Venation
    B. Phyllotaxy
    C. Placentation
    D. Aestivation
    Answer: B. Phyllotaxy

13. In which phyllotaxy type does a single leaf arise at each node alternately?
    A. Opposite
    B. Whorled
    C. Alternate
    D. Spiral
    Answer: C. Alternate

14. In palmately compound leaves, the leaflets are attached to:
    A. The midrib
    B. A common rachis
    C. The base of the petiole
    D. A lateral branch
    Answer: C. The base of the petiole

15. Which of the following terms describes a flower that can be divided into two equal halves by any vertical plane passing through the center?
    A. Zygomorphic
    B. Asymmetric
    C. Actinomorphic
    D. Unisexual
    Answer: C. Actinomorphic

16. Which type of ovary is found in hypogynous flowers?
    A. Superior
    B. Inferior
    C. Half inferior
    D. Free
    Answer: A. Superior

17. What is the term for the mode of arrangement of sepals or petals in a floral bud?
    A. Placentation
    B. Phyllotaxy
    C. Aestivation
    D. Inflorescence
    Answer: C. Aestivation

18. Which type of aestivation is characterized by petals or sepals overlapping each other but not in a specific direction?
    A. Valvate
    B. Twisted
    C. Imbricate
    D. Vexillary
    Answer: C. Imbricate

19. What type of fruit is a coconut classified as?
    A. Capsule
    B. Drupe
    C. Berry
    D. Nut
    Answer: B. Drupe

20. In the Solanaceae family, the ovary is described as:
    A. Half-inferior and multilocular
    B. Superior and bilocular
    C. Inferior and unilocular
    D. Superior and multilocular
    Answer: B. Superior and bilocular

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21. What is the main function of the mesocarp in fruits like mango?
    A. Protection of seeds
    B. Photosynthesis
    C. Food storage
    D. Seed dispersal
    Answer: C. Food storage

22. Which part of a monocot seed is responsible for storing food?
    A. Scutellum
    B. Endosperm
    C. Coleoptile
    D. Coleorhiza
    Answer: B. Endosperm

23. In which plant family is the floral formula represented as ⊕ K(5) C(5) A(5) G(2)?
    A. Fabaceae
    B. Solanaceae
    C. Brassicaceae
    D. Liliaceae
    Answer: B. Solanaceae

24. What is the term for fruits that develop without fertilization?
    A. Parthenocarpic fruits
    B. Compound fruits
    C. Drupe fruits
    D. Simple fruits
    Answer: A. Parthenocarpic fruits

25. What differentiates a syncarpous ovary from an apocarpous ovary?
    A. Presence of multiple ovaries
    B. Fusion of carpels
    C. Number of ovules
    D. Position of ovary
    Answer: B. Fusion of carpels