Morphology of Flowering Plants is a Class 11 Biology chapter that carries about 3.4% of the Biology questions in NEET. Practise it with 60 questions covering 3 topics, each with an explanation.
Sample questions on Morphology of Flowering Plants with answers
8 questions from the practice bank, spread across the chapter's topics. The full set is in the app.
Question 1: Leaf, Flower and Fruit
A flower that can be divided into two equal halves by any vertical plane through its centre is:
- A zygomorphic
- B asymmetric
- C unisexual
- D actinomorphic
Answer: D. actinomorphic
Why: Mustard, datura and chilli have radially symmetrical (actinomorphic) flowers.
Question 2: Root and Stem Modifications
The thorns of Citrus and Bougainvillea are the modified:
- A axillary buds, which protect the plant from the browsing animals
- B leaves
- C stipules
- D roots
Answer: A. axillary buds, which protect the plant from the browsing animals
Why: They are straight and pointed.
Question 3: Types of Inflorescence
The type of inflorescence in the mustard, Brassica, is a:
- A spike
- B umbel
- C cyme
- D raceme
Answer: D. raceme
Why: The pedicelled flowers are borne on the main axis.
Question 4: Leaf, Flower and Fruit
Whorled phyllotaxy is seen in:
- A China rose
- B guava
- C mustard
- D Alstonia
Answer: D. Alstonia
Why: More than two leaves arise at a node.
Question 5: Root and Stem Modifications
Fusiform roots are the modification of the tap roots seen in:
- A turnip
- B radish
- C beet
- D carrot
Answer: B. radish
Why: Carrot is conical and turnip is napiform.
Question 6: Types of Inflorescence
The sunflower has an inflorescence called a:
- A raceme
- B head (capitulum)
- C umbel
- D spike
Answer: B. head (capitulum)
Why: The ray florets and the disc florets are present.
Question 7: Leaf, Flower and Fruit
The leaf modification in Acacia (the phyllode) shows that:
- A the leaf becomes a storage organ
- B the root is modified
- C the petiole is flattened and does photosynthesis, while the leaf is reduced
- D the stem is flattened
Answer: C. the petiole is flattened and does photosynthesis, while the leaf is reduced
Why: In some plants like Nepenthes, the leaves are modified into a pitcher.
Question 8: Root and Stem Modifications
The root system in the monocot plants is:
- A a prop root
- B fibrous
- C a tap root
- D a pneumatophore
Answer: B. fibrous
Why: The fibrous root is formed from the base of the stem.