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Class 11 Morphology of Flowering Plants worksheet
CBSE Biology. Root, stem and leaf modifications, flower, placentation, fruits, seeds and families. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
In dicots, the primary root grows directly from the radicle and forms a:
- adventitious root system
- prop root system
- fibrous root system
- tap root system
Answer
(d) tap root system
- 2.
The hinged trap of Venus flytrap is a modified:
- leaf
- root
- stem
- flower
Answer
(a) leaf
- 3.
The placentation in sunflower is:
- marginal
- free central
- parietal
- basal
Answer
(d) basal
Section B · short answer
- 4.
What is the difference between a tap root and a fibrous root system?
Answer
A tap root system has one main root from the radicle with lateral roots (dicots, mustard). In a fibrous root system the primary root is short-lived and many roots arise from the base of the stem (monocots, wheat).
- 5.
What is modified in carrot, into what, and for what job?
Answer
The root, into a fleshy, conical storage organ, for food storage
Section C · long answer
- 6.
Describe the modifications of roots with examples.
Answer
Storage: tap roots of carrot and turnip, adventitious roots of sweet potato. Support: prop roots of banyan and stilt roots of maize and sugarcane. Respiration: pneumatophores of Rhizophora in mangroves, which grow up out of the swampy soil to get oxygen.
Fresh sheets for your child
In the app, every Morphology of Flowering Plants sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
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