1. Which tissue is responsible for the growth in length of a plant?
Answer:
Explanation:
The apical meristem is present at the tips of roots and shoots and causes primary growth or elongation.
2. The vascular bundles in monocotyledonous plants are:
Answer:
Explanation:
In monocots, the vascular bundles are scattered throughout the ground tissue.
3. Which tissue provides flexibility to plants and allows them to bend without breaking?
Answer:
Explanation:
Collenchyma cells provide elasticity to plants, making them flexible.
4. Which cells are responsible for the conduction of water in plants?
Answer:
Explanation:
Tracheids are part of the xylem and help in the conduction of water.
5. What type of tissue is cork?
Answer:
Explanation:
Cork is a type of simple permanent tissue that forms the outer protective layer in stems.
6. The living cells that surround the xylem and provide support are:
Answer:
Explanation:
Cambium cells are meristematic and are found between the xylem and phloem.
7. The dead, hard cells that give support to a plant are:
Answer:
Explanation:
Sclerenchyma cells are thick-walled and provide structural support.
8. The process of formation of new secondary tissues is called:
Answer:
Explanation:
This occurs when the primary permanent tissues regain the power of division.
9. The tissue responsible for transporting food materials in plants is:
Answer:
Explanation:
Phloem transports the food materials, primarily sucrose, produced during photosynthesis.
10. Which tissue protects the plant body against loss of water, mechanical injury and invasion by parasitic fungi?
Answer:
Explanation:
Epidermis is the outermost layer that offers protection against various external factors.
11. What is the main function of stomata?
Answer:
Explanation:
Stomata allow the exchange of gases and water vapor between the plant and the atmosphere.
12. The growth in diameter of a plant is due to:
Answer:
Explanation:
Lateral meristems, like the vascular cambium, result in secondary growth or increase in diameter.
13. The tissue which fills the space between vascular bundles in stems is:
Answer:
Explanation:
Pith is the central part of the stem, filling the space inside the ring of vascular bundles.
14. Which tissue acts as a food storage in plants?
Answer:
Explanation:
Parenchyma cells often store food in the form of starch or fat.
15. Which of the following is NOT a function of the root?
Answer:
Explanation:
Roots generally do not perform photosynthesis; it's primarily a function of the leaves.
16. Which of the following is a type of complex tissue?
Answer:
Explanation:
Xylem is a complex tissue made up of several cell types.
17. The vascular bundles are arranged in a ring in:
Answer:
Explanation:
In dicots, the vascular bundles are typically arranged in a circle.
18. The protective layer of cells that replaces epidermis in older stems is:
Answer:
Explanation:
In older stems, the epidermis is often replaced by the periderm.
19. Which part of a plant gets affected first if the tip of a root is cut?
Answer:
Explanation:
The root tip contains the apical meristem (zone of cell division). If it's cut, this zone is directly affected.
20. The cells of which tissue are compactly packed and do not have intercellular spaces?
Answer:
Explanation:
Sclerenchyma cells are compactly packed and provide structural support to the plant.