Gymnosperms

Q.

Name any five fruits that has no seeds.

Q.

What are phanerogams?

Q.

What are the major divisions in the Plantae? What is the basis for these divisions?

Q.

What is manoxylic and pycnoxylic wood?

Q.

Plants which bear naked seeds are ___ .

1. Bryophytes

2. Pteridophytes

3. Gymnosperms

4. Angiosperms

Q.

Write the characteristics of subkingdom phanerogams.

Q. The plants, which produce seeds but do not bear flowers, are called _______.

1. 
   angiosperms
2. 
   gymnosperms
3. 
   pteridophytes
4. 
   phanerogams

Q. Write names of few thallophytes. Draw a labeled diagram of Spirogyra.
[3 MARKS]

Q. Gymnosperms differ from most of angiosperms:

1. In having seeds
2. In being smaller in system
3. none of the above
4. In having naked ovules

Q.

Gymnosperms have naked seeds.

1. False

2. True

Q.

Is palm tree a gymnosperm?

Q.

Define the term Hydrophytes.

Q.

What are examples of non-flowering plants?

Q.

Is a cactus an autotroph?

Q.

The flowering plant group, which is the biggest in the plant kingdom is

1. Ferns

2. Angiosperms

3. Gymnosperms

4. Moss

Q.

Question 46
Give True (T) and False (F)
(a) Gymnosperms differ from Angiosperms in having covered seed.
(b) Non flowering plants are called Cryptogamae.
(c) Bryophytes have conducting tissue.
(d) Funaria is a moss.
(e) Compound leaves are found in many ferns.
(f) Seeds contain embryo.

Q.

What are vascular and non-vascular plants?

Q.

Leaves of rose plant show reticulate venation. So which group does rose plant belong to?

1. Thallophytes

2. Gymnosperms

3. Monocots

4. Dicots

Q. All ______ produce naked seeds.

1. Gymnosperms

2. Angiosperms

3. Bryophytes

4. Pteridophytes

Q.

In gymnosperms, sporophylls aggregate to form cones.

1. True
2. False

Q.

The most primitive seed plants are:

1. Gymnosperms

2. Angiosperms

3. Bryophytes

4. Pteridophytes

Q.

The pollen chambers present in gymnosperms represent

1. The microsporangium in which pollen grains develop.

2. An opening in the megagametophyte through which pollen tube approaches the egg.

3. A cavity in the ovule in which pollen grains are stored after pollination

4. A cell in the pollen grain in which sperms are formed

Q.

Pollination occurs in

1. angiosperms and fungi

2. angiosperms and gymnosperms

3. bryophytes and angiosperms

4. pteridophytes and angiosperms

Q.

Are pineapples gymnosperms?

Q.

Is pine a gymnosperm?

Q.

The reproductive structures of gymnosperms are called

1. Archegonia

2. Antheridia

3. Cones

4. Sporophylls

Q.

In Pinus lifecycle megasporangium formed from the parent sporophyte is i which produces haploid megaspores by ii .

The information in which alternative complete the given statement?

1. 

2. 

3. 

4. 

Q. Gymnosperms differ from angiosperms in having ______.

1. phloem
2. naked seeds
3. flower
4. differentiated body

Q.

Are dandelions gymnosperms?

Q. The nucellus of the ovule is:

1. haploid
2. diploid
3. triploid
4. polyploid