1. Floridean starch is similar to
a) Amylopectin
b) Glycogen
c) Fructose
d) Both (a) and (b)
Explanation: Both (a) and (b)
2. The spores and gametes of red algae are
a) Motile and non-motile
b) Both are motile
c) Both non-motile
d) Motile spores and non-motile gamete
Explanation: The spores and gametes of red algae are both non-motile.
3. Sexual reproduction of oogamous type is found in
a) Red algae
b) Green algae
c) Brown algae
d) All of these
Explanation: All of these
4. The most reduced type of sexual reproduction is found in the members of
a) Red algae
b) Green algae
c) Brown algae
d) All of these
Explanation: The most reduced type of sexual reproduction is found in the members of red algae.
5. _______ reproduction is shown by the members of rhodophyceae.
a) Oogamous
b) Isogamous
c) Anisogamous
d) All of these
Explanation: Oogamous reproduction is shown by the members of rhodophyceae.
6. Fronds are found in which of the following algae?
I. Laminaria
II. Fucus
III. Dictyota
IV. Porphyra
a) I, II, and III
b) I and II
c) II and III
d) All of these
Explanation: All of these
7. Air bladders are shown by
a) Fucus
b) Laminaria
c) Dictyota
d) All of these
Explanation: Air bladders are shown by fucus.
8. How many of the following algae belong to the category of red algae?
Polysiphonia, Gelidium, Laminaria, Spirogyra, Porphyra, Fucus, Chlamydomonas
a) 2
b) 3
c) 4
d) 5
Explanation: 3
9. Members of phaeophyceae are
a) Ectocarpus, dictyota, fucus and sargassum
b) Ectocarpus, dictyota, fucus and porphyra
c) Chlamydomonas, volvox, ulothrix
d) Gracilaria and gelidium
Explanation: Members of phaeophyceae are ectocarpus, dictyota, fucus and sargassum.
10. Polysulphate esters are present in the cell wall of
a) Ectocarpus and dictyota
b) Gelidium and gracilaria
c) Ectocarpus and sargassum
d) Spirogyra and chara
Explanation: Polysulphate esters are present in the cell wall of gelidium and gracilaria.
11. Pear-shaped gametes are found in
a) Ectocarpus, dictyota and fucus
b) Ulothrix, spirogyra, and ectocarpus
c) Ectocarpus, gelidium and gracilaria
d) None of these
Explanation: Pear-shaped gametes are found in ectocarpus, dictyota and fucus.
12. The complex post-fertilization events are seen in
a) Chlorella and spirullina
b) Gracilaria and porphyra
c) Volvox and ulothrix
d) All of these
Explanation: The complex post-fertilization events are seen in gracilaria and porphyra.
13. Organisms referred to as amphibians of plant kingdom are
a) Pteridophytes
b) Bryophytes
c) Angiosperms
d) Gymnosperms
Explanation: Organisms referred to as amphibians of plant kingdom are Bryophytes.
14. Bryophytes are found in
a) Rocky places
b) Hilly areas
c) Moist and shady places
d) Aquatic areas
Explanation: Bryophytes are found in moist and shady places.
15. Organisms that play an important role in plant succession on base rocks are
a) Mosses
b) Pteridophytes
c) Protist
d) None of these
Explanation: Organisms that play an important role in plant succession on base rocks are Mosses.
16. Bryophytes requires _______ for fertilization
a) Nutrients
b) Water
c) Both (a) and (b)
d) None of these
Explanation: Bryophytes requires water for fertilization
17.Which of the following statement is incorrect with respect to bryophytes?
a) The plant body is thallus like, more differentiated than algae and attached to substratum
by the help of rhizoids
b) The antherozoids are released in water for fertilization.
c) Zygote formed undergoes meiotic cell division immediately
d) They have leaf like, stem like and root like structures
Explanation: "Zygote formed undergoes meiotic cell division immediately". This is incorrect.
18. The sporophyte of bryophytes develops after
a) Reduction division of zygote
b) Multiplication in zygote
c) Before the formation of zygote
d) None of these
Explanation: The sporophyte of bryophytes develops after multiplication in zygote.
19. Sporophyte of bryophytes is
I. Multicellular body
II. Parasite on gametophyte
III. Partially undergoes reduction division to form spores
IV. Derives the water from gametophytes
a) II and III
b) III and IV
c) Only I
d) All of these
Explanation: All of these
20. _______ forms gametophyte of bryophytes.
a) Zygote
b) Sporophyte
c) Gametes
d) Spores
Explanation: Spores forms gametophyte of bryophytes.