Algal reproduction - class-XI
Study of algal reproductive structures, life cycles, and characteristics across different algal classes including green, brown, and red algae.
Questions
Select the correct match of algal class and its characteristic flagellation.
- Chlorophyceae - 2-8 equal, apical
- Phaeophyceae - 2, unequal, lateral
- Rhodophyceae - Absent
- All of these
In Chlamydomonas(a green algae) the number of chloroplast per cell is?
- $1$
- $2$
- $100$
- $1000$
Zoospores produced in Ectocarpus are?
- Motile
- Thick walled
- Pyriform
- Both $(1)$ and $(3)$
'Minute floating' plants are mainly
- Algae
- Bacteria
- Virus
- Fungi
Major photosynthetic pigments in green algae are
- Chl $a$ and $b$
- Chl $a$, $c$ and fucoxanthin
- Chl $a$, $d$ and phycoerythrin
- Chl $a$ and $c$
What are examples of primary producers?
- Omnivores
- Animals
- Green plants and Algae
- Carnivores
The zygospore of Sporogyra after undergoing a rest germinates into a unicellular structure called ____________.
- Sporohyte plant
- Germ cell
- Germ tube
- Germ plant
Which one of the following structures not found in any class of algae?
- Rhizoid and apical cell
- Apical cell
- Embryo
- Thalloid plant body
Laminarin and mannitol, the reserve food of brown algae, are
- lipids
- complex carbohydrates
- proteins
- lipoproteins
Consider the following statements.
a. Ectocaipus has an alternation of isomorphic generations
b. Fucus has no free living haploid generation
c. All red algae are multicellular organisms
d. Brown algae have a few unicellular species
Which of these statements are correct?
- $1, 2, 3$ and $4$
- $2, 3$ and $4$
- $1, 3$ and $4$
- $1$ and $2$