Q. No.What would be true regarding reproduction by ‘zoospores’ in algae and fungi?
| 1. | While they are produced in sexual reproduction in algae, in fungi they are produced in asexual reproduction. |
| 2. | While they are produced in sexual reproduction in fungi, in algae they are produced in asexual reproduction. |
| 3. | They are flagellated and motile in algae and non-motile in fungi. |
| 4. | They are motile and produced in asexual reproduction in both algae and fungi. |
Which of the following is not true regarding algae?
1. Thallophytes that contain chlorophyll
2. Autotrophic
3. Body made of pseudo-parenchyma
4. Cellulosic cell wall
| I: | Anisogamy: Eudorina |
| II: | Oogamy: Fucus |
2. Only II
3. Both I and II
4. Neither I nor II
The cell wall polysaccharides of some red algae are the source of:
1. a sugar substitute
2. a source of salt
3. glucose for the study of photosynthesis
4. agar for growing bacteria and other organisms
Gracilaria and Gelidium, that are source of Agar, belong to:
| 1. | Chlorophyceae | 2. | Rhodophyceae |
| 3. | Phaeophyceae | 4. | Fungi |
| I: | The members of Chlorophyceae have a rigid cell wall made of an inner layer of cellulose and an outer layer of pectose |
| II: | The members of Rhodophyceae do not have a flagellum |
| III: | Members of Phaeophyceae store food as floridean starch which is very similar to amylopectin and glycogen in structure |
| 1. | Only I and III are correct |
| 2. | Only I and II are correct |
| 3. | Only II and III are correct |
| 4. | All I, II and III are correct |
Charophytes are the only living algae that share distinctive derived traits with land plants that other algae don’t. All the following will be examples of such derived traits except:
1. Rings of cellulose-synthesizing proteins
2. Structure of flagellated sperms
3. Formation of a phragmoplast
4. Presence of chlorophyll a and b
Match the terms in Column-I with their correct description in Column-II and select the correct match from the codes given:
| Column-I | Column-II | ||
| A. | Protonema | P. | The first stage in development of the gametophyte in mosses. |
| B. | Prothallus | Q. | The photosynthetic gametophyte in ferns. |
| C. | Seta | R. | In bryophytes, the stalk that supports the capsule, if present. |
| D. | Stipe | S. | The stem-like part of the thallus of brown algae such as kelp. |
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | Q | P | R | S |
| 3. | P | Q | S | R |
| 4. | Q | P | S | R |
Identify the incorrect statement regarding red algae:
1. Major pigments are chlorophyll a, c and phycocyanin
2. Stored food is floridean starch
3. Cellulosic cell wall with pectin and polysulfate esters
4. Absent flagellar insertions
| Assertion (A): | Bryophytes are called amphibians of the plant kingdom. |
| Reason (R): | Bryophytes play an important role in plant succession on bare rocks. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are False. |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A). |
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