10 Questions
Which part of the plant is correctly matched with its characteristic?
Maize grain → coleoptile
Why do seeds sown very deep in the soil fail to germinate?
They cannot exert enough force to push the soil upward.
What grows to form fruit after fertilization?
Ovary
Which of the following is the largest seed?
Double coconut
5
Hilum
What is the protective sheath enclosing the plumule in monocots like maize called?
coleoptile
Why do seeds sown very deep in the soil fail to germinate?
Seeds sown very deep in the soil fail to germinate because of two main reasons: no proper supply of oxygen (for respiration) and insufficient pushing force in the embryonic parts (hypocotyl and epicotyl) to break through the upper layers of soil.
What is the largest seed among the options given?
Double coconut
What is the distinct whitish oval scar on the concave side of the seed termed as?
Hilum
What plant part grows to form fruit after fertilization?
Ovary
Study Notes
Plant Structure and Seeds
- The radicle is correctly matched with its characteristic of growing downward into the soil.
- Seeds sown very deep in the soil fail to germinate because they lack sufficient light for growth.
- The ovary grows to form fruit after fertilization.
- The coco de mer is the largest seed.
- The protective sheath enclosing the plumule in monocots like maize is called the coleoptile.
- Seeds sown very deep in the soil fail to germinate due to insufficient oxygen and light.
- The coco de mer is the largest seed among the options given.
- The distinct whitish oval scar on the concave side of the seed is termed as the hilum.
- The ovary grows to form fruit after fertilization.
Test your knowledge of plant seeds with these multiple-choice questions from Chapter 6 Seeds - Structure and Germination of Class 9 Concise Biology Selina. Identify correct plant part characteristics, understand seed germination challenges, and more.
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