Planet Kingdom MCQ Question with Answer

Planet Kingdom MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

Question No : 15
Pyrenoids in green algal cells are related to

starch formation

protein storage

general metabolism

enzyme secretion

Question No : 16
The heterosporous pteridophyte belonging to the class lycopsida is

Selaginella

Psilotum

Equisetum

Pteris

Question No : 17
Which of the following pteridophytes belong to class pteropsida?

Equisetum and Psilotum

Lycopodium and Adiantum

Selaginella and Pteris

Pteris and Adiantum

Question No : 18
Cycas and Adiantum resemble each other in having

seeds

motile sperms

cambium

vessels

Question No : 19
Protonema and leafy stage are the predominant stage of the life cycle of

moss

dicots

liverwort

gymnosperm

Question No : 20
Which one of the following is a correct statement?

Pteridophyte gametophyte has a protonemal and leafy stage.

In gymnosperms, female gametophyte is free-living.

Antheridiophores and archegoniophores are present in pteridophytes.

Origin of seed habit can be traced in pteridophytes.

Question No : 21
Why rhodophyta exhibit a red colour ?

Since most rhodophyta grow at great depths, the chlorophyll can only absorb light in the red area of the spectrum.

The wavelengths of light that are absorbed by chlorophyll are passed to phycoerythrin (a red pigment).

Red pigment of rhodophyta absorbs all the light waves.

The light reaching the greatest depth in water is in the blue-green region of the spectrum, is absorbed by phycoerythrin.