EASY
Earn 100

In the life cycle of nonvascular terrestrial plants of moist habitats, the gametophytic structures are

50% studentsanswered this correctly

Important Questions on Classification of Plant Kingdom

HARD

Match the plant with the kind of life cycle it exhibits:

  List-I   List-II
(a) Spirogyra (i) Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte
(b) Fern (ii) Dominant haploid free-living gametophyte
(c) Funaria (iii) Dominant diploid sporophyte alternating with reduced gametophyte called prothallus
(d) Cycas (iv) Dominant haploid leafy gametophyte alternating with partially dependent mutlicellular sporophyte

Choose the correct answer from the options given below:

EASY
Which one of the following organisms is a bryophyte?
EASY

Assertion (A): Bryophytes are the amphibians of the plant kingdom.

Reason (R): They are found in swamps and areas, where water and land meet.

MEDIUM
Arrange the functions of the following respectively:
(A) Elaters
(B) Indusium
(C) Agar
MEDIUM
Which of the statements given below is not true about the formation of annual rings in trees?
EASY
Formation of interfascicular cambium and cork cambium from parenchyma is phenomenon of
EASY

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). 

Assertion (A) : The first stage of gametophyte in the life cycle of moss is protonema stage.

Reason (R): Protonema develops directly from spores produced in capsule.

In the light of the above statements, choose the correct answer from the options given below:

EASY
In bryophytes and pteridophytes, transport of male gametes requires:
EASY
In which of the following groups do the male and female gametophytes have independent, free-living existence?
EASY

Assertion (A): The peripheral region of the secondary xylem is lighter in colour and is known as the sapwood (alburnum).

Reason (R): It is involved in the conduction of water and minerals from root to leaf.

The correct answer is:

EASY
Identify the wrong statement in the context of heartwood.
EASY

Which of the following are the part of the Periderm?

I. Duramen

II. Phellogen

III. Phellem

IV. Phelloderm

V. Alburnum

The correct answer is

MEDIUM
Secondary xylem and phloem in dicot stem are produced by
MEDIUM
Plants having little or no secondary growth are
EASY
Which of the following is responsible for peat formation?
EASY
Plants like Marchantia and Funaria produce gametes by mitosis, because
MEDIUM

Match the following lists:

  List-I   List-II
A. Protonema I. Useful in spore dispersal
B. Circinate venation II. Coiling of young leaves in Pteridophytes
C. Elaters III. Storage food in Rhodophyceae
D. Floridean starch IV. Juvenile stage of Bryophytes
    V.  Naked ovules

The correct match is