Anatomy of Flowering Plants · Question 8

Which of the following helps in maintenance of the pressure gradient in sieve tubes?

1. Albuminous cells
2. Sieve cells
3. Phloem parenchyma
4. Companion cells

Given below are two statements: In the light of the above statements, choose the correct answer from the options given below:

1. Statement I is true but Statement II is false
2. Statement I is false but Statement II is true
3. Both Statement I and Statement II are true
4. Both Statement I and Statement II are false

Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R) : In the light of the above statements, choose the correct answer from the options given below :

1. Both A and R are true but R is NOT the correct explanation of A
2. A is true but R is false
3. A is false but R is true
4. Both A and R are true and R is the correct explanation of A

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below:

1. Both Statement I and Statement II are false
2. Statement I is correct but Statement II is false
3. Statement I is incorrect but Statement II is true
4. Both Statement I and Statement II are true

Identify the correct statements: Choose the correct answer from the options given below:

1. A and D only
2. A, B and D only
3. B and C only
4. B, C and E only

Read the following statements about the vascular bundles: Choose the correct answer from the options given below :

1. A, B and D only
2. A, B, C, D and E only
3. A, B, C and D only
4. A, C, D and E only

In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to : Choose the correct answer from the options given below :

1. A and B only
2. C and D only
3. D and E only
4. B and D only

The anatomy of springwood shows some peculiar features. Identify the correct set of statements about springwood. Choose the correct answer from the options given below:

1. A, B, D and E only
2. A, C, D and E only
3. A, B and D only
4. C, D and E only

Interfascicular cambium is present between

1. Secondary xylem and secondary phloem
2. Primary xylem and primary phloem
3. Pericycle and endodermis
4. Two vascular bundles

The type of tissue commonly found in the fruit wall of nuts is :

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