Thallophyta

Q.

What are algae?

Q.

What are the main differences between mosses and ferns?

Q.

Why Red Algae are able to reach the maximum depth in the sea where no other kind of photosynthetic entity grows?

Q.

Give examples of Cryptogams and Phanerogams and why are they called so?

Q.

The mode of nutrition in euglenoids is:

1. Heterotrophic

2. Autotrophic

3. Mixotrophic

4. Symbiotic

Q.

Give some examples for Thallophyta plants.

Q.

Autotrophic organism includes: -

1. Bacteria and Virus

2. Bacteria and Fungi

3. Green Plants and All Bacteria

4. Green Plants and Some bacteria

Q.

Why are green algae considered as ancestors of land plants?

Q.

Name a unicellular alga.

Q.

Are all bryophytes heterosporous?

Q.

Why are the members of class Rhodophyceae commonly called red algae?

Q.

What are examples of colonial green algae?

Q.

Are ferns bryophytes?

Q.

How plants are classified on the basis of vascular tissues?

Q.

What is the cell wall composition of members belonging to class Rhodophyceae?

Q.

Question A. 4.

Which of the following is not one of the five kingdoms?

1. Fungi

2. Algae

3. Monera

4. Plantae

Q. Algae can survive in dry conditions.

1. False
2. True

Q.

Which of the following bears true roots, true stem and true leaves?

1. Funaria

2. Riccia

3. Marsilea

4. Ulothrix

Q.

Chlamydomonas is the example of:

1. Algae

2. Fungi

3. Lichens

4. None of these

Q.

What is lichen?

Q. Assertion(A): Some algae are unicellular.
Reason(R): They belong to the kingdom Monera.

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

Q.

Pteridophyta do not have

1. roots

2. stem

3. flowers

4. leaves

Q. Bryophyta does not have specialised vascular tissues.

1. True
2. False

Q. Arrange the divisions in increasing order of their complexity in body structure. (Top to bottom)

1. Thallophyta
2. Bryophyta
3. Pteridophyta
4. Gymnosperms
5. Angiosperms

Q.

Most of the algae are aquatic and autotrophic and lack many of the distinct cell and tissue types.

1. True

2. False

Q.

Define thallus?

Q.

What are the three benefits of algae?

Q.

Is presence of nematocysts a characteristic of Ctenophores?

Q.

Thallophytes are devoid of conducting tissues.

1. True

2. False

Q. $\begin{array}{cc}\text{A}& \text{B}\\ \text{(i)Spirogyra}& \text{(a)Thalloid body with projected stalk and capsule}\\ \text{(ii)Funaria}& \text{(b)Cluster of spores on posterior of leaf}\\ \text{(iii)Ferns}& \text{(c)Spirally arranged green thread like chloroplast}\end{array}$

1. (i)-b; (ii)-c; (iii)-a
2. (i)-c; (ii)-a; (iii)-b
3. (i)-a; (ii)-b; (iii)-c
4. (i)-a; (ii)-c; (iii)-b