Plant Kingdom · Question 5

In bryophytes, the gemmae help in which one of the following?

1. Nutrient absorption
2. Gaseous exchange
3. Sexual reproduction
4. Asexual reproduction

Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. Choose the correct answer from the options given below:

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

The correct sequence of events in the life cycle of bryophytes is Choose the correct answer from the options given below :

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

Read the following statements and choose the set of correct statements: In the members of Phaeophyceae, Choose the correct answer from the options given below:

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

Identify the incorrect pair :

1. Sphenopsida – Adiantum
2. Pteropsida – Dryopteris
3. Psilopsida – Psilotum
4. Lycopsida – Selaginella

Which of the following is the correct match?

1. Gymnosperms : Cedrus, Pinus, Sequoia
2. Angiosperms : Wolffia, Eucalyptus, Sequoia
3. Bryophytes : Polytrichum, Polysiphonia, Sphagnum
4. Pteridophytes : Equisetum, Ginkgo, Adiantum

Identify the pair of heterosporous pteridophytes among the following :

1. Selaginella and Salvinia
2. Psilotum and Salvinia
3. Equisetum and Salvinia
4. Lycopodium and Selaginella

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

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

Given below are two statements : One labelled as Assertion A and the other 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

Hydrocolloid carrageen is obtained from :

1. Chlorophyceae and Phaeophyceae
2. Phaeophyceae and Rhodophyceae
3. Rhodophyceae only
4. Phaeophyceae only