Cryptogamae

Q.

What are the general characteristics of pteridophytes?

Q.

Are the majority of Pteridophytes homosporous?

Q. derive herons formula

Q.

Why pteridophytes are called botanical snakes?

Q.

Thallophyta, Bryophyta, and Pteridophyta are called ‘Cryptogams’. Gymnosperms and Angiosperms are called ‘Phanerogams’. Discuss why? Draw one example of Gymnosperm.

Q.

More information about thallophyta bryophyta and pteridophyta

Q.

What are the characteristics of sub-kingdom cryptogamae?

Q.

Differentiate between bacteria and cyanobacteria?

Q.

What are Algae? Give three examples of different type of algae. [3 MARKS]

Q.

Pteridophytes do not bear flowers and do not produce seeds.

1. True

2. False

Q.

Are bryophytes multicellular?

Q.

Non-seed bearing vascular plants are called as ............

Q. Plants with hidden reproductive organs are called ___________ .

1. Gymnosperms
2. Phanerogams
3. Cryptogams
4. Angiosperm

Q.

Ferns and horse-tails are members of division

1. Cryptogamae

2. Bryophyta

3. Pteridophyta

4. Thallophyta

Q.

Plants that have naked embryos and vascular tissue are called:

1. Thallophytes

2. Phanerogams

3. Pteridophytes

4. Bryophytes

Q.

Agar-agar is obtained from gelidium.

1. True
2. False

Q.

List the features of chlorella?

Q.

WRITE THE DIFFERENCE BETWEEN CRYPTOGAMS AND PHANEROGAMS

Q. A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has?

1. Haploid vegetative cells and haploid gametangia
2. Diploid vegetative cells and diploid gametangia
3. Diploid vegetative cells and haploid gametangia
4. None of these

Q.

An example of pteridophyta is

1. Selaginella

2. Cycas

3. None of the above

4. Pinus

Q.

An algae used as thickening and gelling agents in food is _________ .

Q.

Question 36 (f)
Fill in the blanks
(f) Plants without well-differentiated stem, root, and leaf are kept in ___.

Q.

Example of colonial algae is

1. Volvox

2. Nostoc

3. Acetabularia

4. All

Q.

Name an alga that exhibits a diplontic life cycle?

Q.

What are the four classes of Pteridophytes?

Q.

What are the major divisions in the Plantae? What is the basis for these divisions?
[5 Marks]

Q.

What do you mean by Heterosporous pteridophytes? Give two examples.

Q.

Which of the following organism is radially symmetrical?

Pteridophytes have naked embryos and vascular tissue.

1. Hydra

2. Frog

3. Fish

4. Earthworm

Q. Question 36 (f)
Fill in the blanks
(f) Plants without well differentiated stem, root and leaf are kept in ___.

Q.

____________ are an ancient group of lower plants that contributed significantly in the creation of fossil fuels.

1. Bryophytes

2. Algae

3. Gymnosperms

4. Pteridophytes