NEET NCERT Biology plant kingdom model,mock,grand tests,mcqs,pdfs

Plant Kingdom Mock Exam-20

Question No:1

Assertion: PEN is triploid in angiosperm.
Reason: PEN is formed by fusion of haploid male gamete with the dipoid secondary nucleus.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] if both the assertion and reason are false



Question No:2

Assertion: The cells of highly reduced female gametophyte (embryo sac in angiosperm) is haploid.
Reason: The embryosac is formed by meiosis.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] if both the assertion and reason are false



Question No:3

Assertion: In pinus coralloid roots are associated with nitrogen fixing cynobacteria.
Reason: In Cycas mycorrhiza is present.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] if both the assertion and reason are false



Question No:4

Male and female gametophytes are independent and free-living in:

[A] Mustard
[B] Castor
[C] Pinus
[D] Sphagnum



Question No:5

Algae have cell wall made up of

[A] Cellulose, galactans and mannans
[B] Hemicellulose, pectins and proteins
[C] Pectins, cellulose and proteins
[D] Cellulose, hemicellulose and pectins



Question No:6

Consider the following four statements whether they are correct or wrong,
(A) The sporophyte in liverworts is more elaborate than that in mosses
(B) Salvinia in heterosporous
(C) The life-cycle in all seed-bearing plants is diplontic
(D) In Pinus male female cones are born on different trees
The two wrong statements together are

[A] A and C
[B] A and D
[C] B and C
[D] A and B



Question No:7

Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because

[A] Female gametophyte is free and gets dispersed like seeds
[B] Female gametophyte lacks archegonia
[C] Megaspores possess endosperm and embryo surrounded by seed coat
[D] Embryo develops in female gametophyte which is retained on parent sporophyte



Question No:8

Examine the figure given below and select the correct option giving all the four parts (A, B, C and D) rightly identified.

[A] A: Archegoniophore, B: Female thallus, C: Gemma cup, D: Rhizoids
[B] A: Archegoniophore, B: Female thallus, C: Bud, D: Food
[C] A: Seta, B: Sporophyte, C: Protonema, D: Rhizoids
[D] A: Antheridiophore, B: Male thallus, C: Globule, D: Roots



Question No:9

Compared with the gametophytes of the bryophytes, the gametophytes of vascular plants tends to be:

[A] Larger but to have smaller sex organs
[B] Larger and to have large sex organs
[C] Smaller and to have smaller sex organs
[D] Smaller but to have larger sex organs



Question No:10

The gametophyte is not an independent, free living generation in

[A] Adiantum
[B] Marchantia
[C] Pinus
[D] Polytrichum



Question No:11

Archegoniophore is present in

[A] Chara
[B] Adiantum
[C] Funaria
[D] Marchantia



Question No:12

A prokaryotic autotrophic nitrogen fixing symbiont is found in:

[A] Cycas
[B] Cicer
[C] Pisum
[D] Alnus



Question No:13

Read the following five statements (A – E) and answer as asked next to them.
(A) In Equisetum the female gametophyte is retained on the parent sporophyte
(B) In Ginkgo male gametophyte is not independent
(C) The sporophyte in Riccia is more developed than that in Polytrichum
(D) Sexual reproduction in Volvox is isogamous
(E) The spores of slime moulds lack cell walls
How many of the above statements are correct?

[A] Three
[B] Four
[C] One
[D] Two



Question No:14

In the five-kingdom classification, Chlamydomonas and Chlorella have been included in

[A] Algae
[B] Plantae
[C] Monera
[D] Protista