plant kingdom

Question 1

which among the following sentence s not correct about brown algae?

1 Are typically Marine form and thallus is with hold fast type and front
2 they are having by flagellated zoospores which are laterally attached
3 pigments in the photosynthetic Apparatus are chlorophyll a Chl d and fucoxanthin
4 laminaria and fucus are brown algae

Answer 1

3 pigments in the photosynthetic Apparatus are chlorophyll a Chl d and fucoxanthin

Question 2

identify the correct option
statement 1: spore is the first cell of sporophytic generation statement 2 :zygote is the first cell of gametophytic generation

Answer 2

The zygote is the first cell of the sporophytic generation while* spore* is the first cell of the gametophytic generation.

Question 3

in pteridophytes the term Prothallus refers to

Answer 3

gametophyte of homosporous member

Question 4

the economic importance produce carrageen is obtained from

Answer 4

rhodophyceae

Question 5

selaginella and salvinia

Answer 5

they are gametophyte is dioecious

Question 6

reserve food molecule can be stored in the form of laminarin or mannitol in the organism

Answer 6

laminaria and fucus

Question 7

division of plant Kingdom have maximum diversity in terms of occurrence of a type of life cycle is

Answer 7

algae

Question 8

heterosporous pteridophytes produces the

Answer 8

dioecious gametophytes

Question 9

character shared by bryophytes and pteridophytes

Answer 9

1. flagellated antherozoids 2.multicellular sporophyte and gametophyte
   3.presence of embryo*

Question 10

organism causes gametophyte which have no independent existence

Answer 10

funaria
pinus
cycas
gnetum
eucalyptus

Question 11

zoospores of algae are

Answer 11

motile and flagellated

Question 12

red algae colour

Answer 12

phycoerythin

Question 13

members of plant kingdom used or medicine and as soil binders

Answer 13

pteridophytes

Question 14

sporophyte as dominant phase

Answer 14

pterido,gymno,angio

Question 15

gymnosperm are naked because of the absence of

Answer 15

ovary wall

Question 16

rhodophyceae cell wall is made up of

Answer 16

cellulose, pectin, polyester

Question 17

algae which shows diplontic life cycle

Answer 17

fucus

Question 18

class ferns and horsetail belongs

Answer 18

to pteridophyte

Question 19

phaeophyceae are brown colour

Answer 19

due to chl a and c and fucoxanthin

Question 20

plant groups have similar pigment composition

Answer 20

Rhodophyta and cyanophyta

Question 21

Seed habit is linked to

Answer 21

heterospory

Question 22

Characteristic of Angiosperms which distinguish them from gymnosperms

Answer 22

*presence of fruits and flowers
*double fertilization and triploid endosperm formed after double fertilization
*companion cells in phloem and vessels in xylem

Question 23

Leafy gametophyte of moss is formed from

Answer 23

2∘ protonema

Question 24

in algal genera dominant phase of life cycle is

Answer 24

haplontic

Question 25

the development of pollen grains in gymnosperms occur in

Answer 25

microsporangia

Question 26

the no. of nuclei take part in double fertilization is

Answer 26

5

Question 27

in gymnosperm , the reduced male gametophyte is

Answer 27

pollen grain

Question 28

gymnosperms do not have

Answer 28

antheridium

Question 29

who proposed the natural system of classification

Answer 29

benthem and hooker

Question 30

group which produce spores and embryo but lack seed and vasculature

Answer 30

bryophyte