NEET UG BIOLOGY Multiple Choice Questions (MCQs)

NEET UG MCQs - Biology Unit 2: Structural Organisation in Animals and Plants

16. Which of the following is a modification of the root?
    a) Tendril
    b) Bulb
    c) Rhizome
    d) Sweet potato
    Answer: d) Sweet potato
17. Which type of inflorescence has a main axis that grows indefinitely with flowers borne on lateral branches?
    a) Cymose
    b) Racemose
    c) Umbellate
    d) Compound
    Answer: b) Racemose
18. The primary function of root hairs is:
    a) Anchoring the plant
    b) Absorption of water and minerals
    c) Synthesis of food
    d) Transport of water
    Answer: b) Absorption of water and minerals
19. Which part of the plant is responsible for the synthesis of food?
    a) Stem
    b) Leaf
    c) Root
    d) Flower
    Answer: b) Leaf
20. Which of the following families is characterized by the presence of a bilaterally symmetrical flower?
    a) Malvaceae
    b) Cruciferae
    c) Leguminosae
    d) Compositae
    Answer: b) Cruciferae
21. In which type of inflorescence do the flowers grow from the apex of the main axis and the central flowers bloom first?
    a) Cymose
    b) Racemose
    c) Umbellate
    d) Capitulum
    Answer: a) Cymose
22. What is the function of xylem in plants?
    a) Transport of water and minerals
    b) Transport of food
    c) Storage of starch
    d) Photosynthesis
    Answer: a) Transport of water and minerals
23. Which part of the flower contains both male and female reproductive organs?
    a) Petal
    b) Stamen
    c) Pistil
    d) Androecium
    Answer: c) Pistil
24. Which of the following is a modification of the stem?
    a) Thorns in rose
    b) Tuber in potato
    c) Root in sweet potato
    d) Bulb in onion
    Answer: b) Tuber in potato
25. The seed coat of dicot seeds consists of two layers, the outer layer is called:
    a) Endosperm
    b) Tegmen
    c) Testa
    d) Cotyledon
    Answer: c) Testa
26. Which of the following is not a characteristic of the family Malvaceae?
    a) Actinomorphic flowers
    b) Presence of epicalyx
    c) Leaves with serrate margins
    d) Zygomorphic flowers
    Answer: d) Zygomorphic flowers
27. The root system of monocots typically consists of:
    a) Taproot
    b) Fibrous roots
    c) Adventitious roots
    d) Both a and b
    Answer: b) Fibrous roots
28. Which part of the plant is responsible for the production of pollen grains?
    a) Stigma
    b) Anther
    c) Style
    d) Ovary
    Answer: b) Anther
29. Which of the following families is characterized by having an alternate, simple leaf arrangement and actinomorphic flowers?
    a) Compositae
    b) Malvaceae
    c) Leguminosae
    d) Graminae
    Answer: b) Malvaceae
30. Which part of the plant flower is most likely to develop into a fruit?
    a) Ovule
    b) Ovary
    c) Style
    d) Stigma
    Answer: b) Ovary

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