Aerenchyma & Prosenchyma

Q. Which tissue provides mechanical strength to plant

1. Sclerenchyma
2. Parenchyma
3. Collenchyma
4. Chlorenchyma

Q.

Does Chlorenchyma help the plant to float in water?

Q. Prosenchyma is a type of

1. Chlorenchyma
2. Collenchyma
3. Sclerenchyma
4. Parenchyma

Q. The tissue that is most abundant in hydrophytes is

1. chlorenchyma
2. aerenchyma
3. spongy parenchyma
4. collenchyma

Q. Buoyancy in hydrophytes is due to the presence of

1. spongy parenchyma
2. chlorenchyma
3. aerenchyma
4. collenchyma

Q. Buoyancy in hydrophytes is due to the presence of

1. spongy parenchyma
2. chlorenchyma
3. aerenchyma
4. collenchyma

Q. Ground tissues are

1. Parenchyma
2. Sclerenchyma
3. Collenchyma
4. All of the above

Q. Reduced vascular tissues, mechanical tissues and cuticle are characteristics of

1. epiphytes
2. hydrophytes
3. xerophytes
4. mesophytes

Q. Collenchyma differs from parenchyma in having

1. Living protoplasm
2. Cellulose walls
3. Vacuoles
4. Pectin deposits at corners

Q. Assertion :Collenchyma is thick walled dead tissue. Reason: Collenchymatous cells show thickenings of pectin.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Assertion is incorrect but Reason is correct.

Q. Name the tissue which allows aquatic plants to float.

Q. Which tissue provides flexibility to plants?

1. Collenchyma
2. Aerenchyma
3. Parenchyma
4. Sclerenchyma

Q.

Read the following statements I and II.

I. Many organs of aquatic plants float in water.

II. Large air gaps are present in the collenchyma tissues of lotus leaf.

1. Statement I is correct and II is incorrect.

2. Statement II is correct and I is incorrect.

3. Statement I and II are correct.

4. Statement I and II are incorrect.

Q. is a type of parenchymatous cell that has a modification which helps in storing air.

1. Prosenchyma
2. Sclerenchyma
3. Collenchyma
4. Aerenchyma

Q. Function of storage is performed by

1. Sclerenchyma
2. Parenchyma
3. All of the above
4. Phloem

Q.

Name the cells that store food in plant.

Q. Which of the following is the correct match with their functions?

1	Collenchyma	Photosynthesis
2	Chlorenchyma	Fills cavities between the organs
3	Adipose tissue	Insulator
4	Arenchyma	Gives buoyancy

1. Collenchyma- Gives buoyancy
2. Chlorenchyma- Photosynthesis
3. Arenchyma- Fills cavities between the organs
4. Adipose tissue- Photosynthesis

Q. Identify the plant tissue in which lignin is absent

1. Collenchyma
2. Sclerenchyma fibres
3. Sclereids
4. Xylem tracheae

Q. The living mechanical tissue

1. Parenchyma
2. Xylem
3. Collenchyma
4. Sclerenchyma

Q. In a dicot leaf, vascular bundles are found in the

1. Chloroplast
2. Upper epidermis
3. Lower epidermis
4. Spongy mesophyll
5. Palisade tissue

Q.

Read the following statements I and II.

I. Many organs of aquatic plants float in water.

II. Large air gaps are present in the collenchyma tissues of lotus leaf.

1. Statement II is correct and I is incorrect.

2. Statement I and II are correct.

3. Statement I and II are incorrect.

4. Statement I is correct and II is incorrect.

Q. The tissue that is most abundant in hydrophytes is

1. chlorenchyma
2. aerenchyma
3. spongy parenchyma
4. collenchyma

Q. Aerenchyma occurs in

1. Epiphyes
2. Halophyes
3. Hydrophytes
4. Xerophytes

Q. The tissue most abundant in Hydrilla is

1. Collenchyma
2. Aerenchyma
3. Sclerenchyma
4. Phloem

Q. Collenchyma can be differentiated from parenchyma by

1. Living protoplasm
2. Pecto-cellulosic deposits at corners
3. Cellulosic wall
4. No protoplasm

Q. is a type of parenchymatous cell that has a modification which helps in storing air.

1. Prosenchyma
2. Sclerenchyma
3. Collenchyma
4. Aerenchyma

Q. Pear fruit contains abundant

1. Fibres
2. Aerenchyma
3. Stone cells
4. Vascular tissues

Q. Aerenchyma is a modification of

1. Phloem
2. Sclerenchyma
3. None of the above
4. Parenchyma

Q. Choose the correct answer from the alternatives given.
A simple mechanical tissue devoid of lignin is:

1. chlorenchyma
2. parenchyma
3. collenchyma
4. sclerenchyma

Q.

1. on the walls bordering intercellular spaces
2. on the tangential walls
3. at the corners of cell
4. throughout the cell wall