Please select a subject first
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Organisms living in salty areas are called as ______.
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What is the principle underlying the use of cyanobacteria in agricultural fields for crop improvement?
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Make a list of algae and fungi that have commercial value as source of food, chemicals, medicines and fodder.
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In Opuntia the stem is modified into a flattened green structure to perform the function of leaves (i.e., photosynthesis). Cite two other examples of modifications of plant parts for the purpose of photosynthesis.
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Name the body part modified for food storage in the following:
Colocasia ______.
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Name the body part modified for food storage in the following:
Potato ______.
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Name the body part modified for food storage in the following:
Turmeric ______.
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Name the body part modified for food storage in the following:
Gladiolus ______.
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Name the body part modified for food storage in the following:
Ginger ______.
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Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.
Cucumber
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Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.
Pumpkins
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Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.
Grapevine
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Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.
Watermelons
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Tendrils of grapevines are homologous to the tendril of pumpkins but are analogous to that of pea. Justify the above statement.
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Describe various stem modifications associated with food storage, climbing and protection.
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Stolon, offset and rhizome are different forms of stem modifications. How can these modified forms of stem be distinguished from each other?
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Seeds of some plants germinate immediately after shedding from the plants while in other plants they require a period of rest before germination. The later phenomena is called as dormancy. Give the reasons for seed dormancy and some methods to break it.
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Match the followings and choose the correct option from below
| Column I | Column II |
| A. Meristem | i. Photosynthesis, storage |
| B. Parenchyma | ii. Mechanical support |
| C. Collenchyma | iii. Actively dividing cells |
| D. Sclerenchyma | iv. Stomata |
| E. Epidermal tissue | v. Sclereids |
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Cells of this tissue are living and show angular wall thickening. They also provide mechanical support. The tissue is ______.
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In which of the following pairs of parts of a flowering plant is epidermis absent?
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