Phanerogamae

Q.

Describe the important characteristics of gymnosperms.

Q.

What happens to the antipodal cells after fertilisation?

Q. Seed-producing plants are called:​

1. pteridophytes​
2. embryophytes​
3. spermatophytes​
4. bryophytes​

Q.

Is Hibiscus monoecious or dioecious?

Q.

What is Cycas?

Q.

The plant Cuscuta cannot synthesize its own food. It derives food from a different plant known as the ___ .

1. parasite

2. host

3. symboint

4. none of these

Q.

Why are fruits not formed in gymnosperms?

Q. The organism on which parasites live and obtain nutrients from is known as the ______ .

1. partner
2. guest
3. feeder
4. host

Q. Seeds are present in which of the following plants?

1. Cryptogams
2. Phanerogams
3. Thallophytes
4. Pteridophytes

Q.

Are gymnosperms edible?

Q. What is meant by free-living marine organisms?

Q.

What is the function of bracts?

Q.

Phanerograms are divided into?

Q. Vascular Phanerogams with companion cells are/is

1. Pinus
2. Marchantia
3. Selaginella
4. Rose

Q. Which of the following is the major adaptation for a plant to survive in the xerophytic conditions?

1. Long tap root
2. Lack of stomata
3. Stipular leaves
4. Spines

Q. Question 2
Which among the following has specialized tissue for conduction of water?

(i) Thallophyta
(ii) Bryophyta
(iii) Pteridophyta
(iv) Gymnosperms

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)

Q.

Leaves that consist of both green and non-green parts are called variegated leaves. State true or false.

1. False

2. True

Q. The plants whose seeds have only one cotyledon are called _______.

1. Monocots
2. Dicots
3. Biennials
4. Annuals

Q.

Mention two types of classification of angiosperms.

Q.

In Thallophyta, the mechanical and the conducting tissues are absent.

1. False

2. True

Q.

Give one word for the following:

Green leaf-like outermost whorl of a flower.

Q. Question 49
Fill in the boxes given in the figure with appropriate characteristics/plant group (s)

Q. The plants whose seeds have two cotyledons are called:

1. Dicots
2. Monocots
3. Biennials
4. Annuals

Q. Assertion :Gymnosperms do not produce fruits. Reason: Ovules of gymosperms are enclosed within the ovaries.

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. Both Assertion and Reason are incorrect

Q.

What do you understand by naked-seeded plants?

Q.

Identify the monocot plant.

1. Sunflower

2. Potato

3. Banana

4. Apple

Q.

Which of the following statements best links the two given images?

Image 1

Image 2

1. Reduction of gametophytic generation from bryophytes to angiosperms.

2. Reduction of sporophytic generation from bryophytes to angiosperms

3. Increase in gametophytic generation from thallophytes to angiosperms

4. None of these

Q.

Give the appropriate scientific term for the following.

Higher plants which produce seeds.

Q.

Which of these features makes Angiosperms unique?

1. These plants bear fruits on them.

2. Plants reproduce sexually.

3. Plants are huge in size.

4. They can produce their own food.

Q. Give a brief description of the Kingdom plantae.
[2 Marks]