Unit 2 Bryophyta and Pteridophyta

Question 1

The simplest and most primitive green terrestrial plants are

Answer 1

Bryophyta
They are found in shady areas

Question 2

What are the body divisions of bryophyta and their function

Answer 2

Rhizoid - used for water and nutrient absorption
Aerial green portion either thalloid or leafy

Question 3

Bryophyta are divided into

Answer 3

Class hepaticae
Class anthocerotae
Class musci

Question 4

The most primitive byrophyte with a flat ribbon like green thallus in which gametes and sporangium are embedded is

Answer 4

Class hepaticae

Question 5

Which bryophyte has the simplest gametophyte

Answer 5

Anthocerotae

Question 6

The gametophyte of class musci is

Answer 6

Upright or prostate

Question 7

Marked advancement in plant differentiation and evolution is seen in

Answer 7

Class musci

Question 8

Vascular systems for transport in plant was first seen in

Answer 8

Pteridophyta

Question 9

Sporophyte is the dominant generation in

Answer 9

Pteridophyta

Question 10

Which generation is dominant in bryophyta

Answer 10

Gametophyte

Question 11

Pteridophyta are divided into _____

Answer 11

5
Class Rhyniopsida
Class psilopsida
Class lycopsida
Class sphenopsida
Class pteridopsida

Question 12

Extinct Class of pteridophytes is

Answer 12

Class rhyniopsida

Question 13

True ferns are also known as

Answer 13

Pteridopsida

Question 14

Which class of Pteridophyta has no root and its rhizoids are always associated with a fungus

Answer 14

Class psilopsida

Question 15

Spores of psilopsida are

Answer 15

Homosphorous

Question 16

Which division of Pteridophyta is represented by three families with one genus each

Answer 16

Class lycophyta

Question 17

Both homosphory and heterosphory occur in

Answer 17

Lycopsida

Question 18

The vascular system of _____ resembles that of angiosperms

Answer 18

Lycophyta

Question 19

Class sphenopsida are represented by a single family ____

Answer 19

Equisetaceae with single genus equisetum(horsetails)

Question 20

Equisetum arvense grows in

Answer 20

Dry habitat

Question 21

What are scouring rushes

Answer 21

Species of equisetum having silica in the epidermis of their stems formerly used to scrub pots and pans

Question 22

______ has distinct nodes and internodes

Answer 22

Equisetum

Question 23

Photosynthesis in equisetum is carried out by

Answer 23

Green stems

Question 24

Present day species of equisetum are

Answer 24

Homosphorous

Question 25

The autotrophic gametophyte of equisetum is _____

Answer 25

A single thallus with many lobes

Question 26

Shade loving plants of small size with their most prominent feature being upright leaves/fronds are

Answer 26

Ferns
Class pteridopsida

Question 27

Leaves of ferns are dissected into leaflets arranged pinnately on ____

Answer 27

Rachis

Question 28

Sori in ferns are protected by _____

Answer 28

Indusium

Question 29

All ferns except ______ families are Homosphorous

Answer 29

2

Question 30

Antheridia and archegonia in ferns are borne on

Answer 30

The same gametophyte
Gametophyte/protalli are interdependent of sporophyte