Meristematic Tissue

Q.

Meristematic tissues have prominent nuclei and dense cytoplasm but they lack vacuole.why?

Q.

What are the characteristics of parenchyma ?

Q. Match the following.

Column A	Column B
A) Apical meristem	i) increases the girth of stem and root
B) Lateral meristem	ii) increases the length of internode
C) Intercalary meristem	iii) increases the length of stem and root

1. A) - ii; B) - i; C) - iii
2. A) - iii; B) - ii; C) - i
3. A) - i; B) - iii; C) - ii
4. A) - iii; B) - i; C) - ii

Q. Difference between
APICAL , INTERCALARY , LATERAL. Meristmatic tussues

Q. What is primary and secondary xylem

Q. Give reason for the following:
(I) the cells of meristematic tissue have dense cytoplasm, thin walls and prominent nuclei.
(II) vocules are absent in the cell of the tissue.

Q.

Give reason: Cells of sclerenchymatous tissue have a narrow lumen.

Q.

The path of water in stomatal transpiration is

1. Mesophyll cells substomatal chambers intercellular spaces veins stomata exterior
2. Veins mesophyll cells intercellular spaces substomatal chambers stomata exterior
3. Mesophyll cells veins intercellular spaces substomatal chambers stomata exterior
4. Intercellular spaces substomatal chambers veins mesophyll cells stomata Exterior

Q.

What are the characteristics of meristematic tissues in plants?

1. Thick cellulose wall, small vacuoles, dense cytoplasm, small nuclei.

2. Thin cellulose wall, no vacuoles, dense cytoplasm, prominent nuclei.

3. Thin cellulose wall, no vacuoles, sparse cytoplasm, prominent nuclei.

4. Thick cellulose wall, large vacuoles, sparse cytoplasm, small nuclei.

Q. Do the roots of a plant continue to grow after their tips are removed

Q.

What are the characteristics of sclerenchyma?

Q.

Growth in plants is restricted to certain regions. Explain

Q.

The intercalary meristem is responsible for the increase in girth of the plant.

1. Apical meristem

2. Cambium

Q.

Position of protoxylem and protophloem in leaf, respectively, is

1. Abaxial and adaxial

2. Adaxial and abaxial

3. Both abaxial

4. Both adaxial

Q.

Which tissue makes up the coconuts husk?

Q. Assertion[A]: Meristematic tissues have a prominent nucleus and abundant cytoplasm.
Reason[R]: Cells in meristematic tissue are continuously dividing.

1. A is true and R is false.
2. A is false and R is true.
3. A and R both are true and R is correct explanation of A.
4. A and R both are true but R is not correct explanation of A.

Q.

The hard covering of seeds and nuts is due to:

1. Parenchyma

2. Sclerenchyma

3. Collenchyma

4. Aerenchyma

Q.

Which of the following tissue has lignified cell wall?

1. Parenchyma

2. Collenchyma

3. Sclerenchyma

4. Cambium

Q.

What is intercalary meristem? How does it differ from lateral meristem?

Q. Which of the following ground tissue has irregular thickening at the corners of their cells?

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

Q.

Which is a specialized parenchyma tissue containing chlorophyll?

1. Sclerenchyma

2. Chlorenchyma

3. Collenchyma

4. Aerenchyma

Q. Desert plants have thick layer of ________ which prevents loss of excess water.

1. pectin
2. lignin
3. cuticle
4. suberin

Q. State whether the following statements are true or false.
Statement 1- Guard cells help in regulating the opening and closing of stomata.
Statement 2- Stomata facilitates the loss of excess water.

1. False; False
2. False; True
3. True; True
4. True; False

Q. meristems are found along the sides of roots and stems.

1. Intercalary
2. Apical
3. Lateral

Q.

Cells of tissue A have small intercellular spaces and walls thickened at the corners. Cells of tissue B do not have intercellular spaces and thickened cell walls. Identify tissue A and B.

1. A: Sclerenchyma, B: Collenchyma

2. A: Collenchyma, B: Sclerenchyma

3. A: Chlorenchyma, B: Sclerenchyma

4. A: Collenchyma, B: Chlorenchyma

Q. Match the following.

Column A	Column B
A) Parenchyma	i) Flexibility in plant
B) Sclerenchyma	ii) Thin cellulose walls
C) Collenchyma	iii) Lignin deposition

1. A - i; B - iii; C- ii
2. A - ii; B - iii; C - i
3. A - iii; B - ii; C - i
4. A - iii; B - i; C - ii

Q. Write the functions of parenchyma, collenchyma and sclerenchyma.​

Q.

Name one place in living organisms where the meristematic tissues are located.

Q.

Usually, shrubs and herbs grow in open places and are exposed to forceful wind but they do not break. Why? [2 MARKS]

Q.

Krishna determined the age of a tree by counting its annual rings which actually are the _____ rings.

1. xylem

2. vascular cambium

3. apical meristem

4. phloem