NTS/NTS CURRENT AFFAIRS BOTONY MCQ SET 2 Sample Test,Sample questions

Question:
After forest fire which plants are the first to appear

1.ferns

2.bryophytes

3.grass

4.all of these

Posted Date:-2021-08-17 23:42:10


Question:
Agar, which is the solidifying agent in many bacterial culture media, is part of the cell wall of

1.pyrrophyta

2.Chrysophyta

3.chlorophyta

4.rhodophyta

Posted Date:-2021-08-17 23:42:10


Question:
Algae have cell wall made up of

1.pectins, cellulose and proteins

2.cellulose, hemicellulose and pectins

3.chitin

4.cellulose, galactans and mannans

Posted Date:-2021-08-17 23:42:10


Question:
All algae possess

1.nuclei

2.chloroplasts

3.both a and b

4.none of these

Posted Date:-2021-08-17 23:42:10


Question:
All of the following cellular structures are functionally important in cells of the gametophytes of both angiosperms and gymnosperms, except

1.haploid nuclei

2.mitochondria

3.cell wall

4.chloroplast

Posted Date:-2021-08-17 23:42:10


Question:
An ecosystem must have a continuous external source of

1.energy

2.food

3.minerals

4.all of these

Posted Date:-2021-08-17 23:42:10


Question:
Biotic potential is counteracted by

1.competition with other organisms

2.producer is the largest

3.limitation of food supply

4.none of these

Posted Date:-2021-08-17 23:42:10


Question:
Cell elongation in the internodal region of green plants takes place due to

1.ethylene

2.cytokinins

3.gibberellins

4.indole acetic acid

Posted Date:-2021-08-17 23:42:10


Question:
Chemical reactions could have converted simple organic compounds into ______ for the origin of life.

1.micromolecules

2.macromolecules

3.nitrogen, oxygen and other gases

4.cells

Posted Date:-2021-08-17 23:42:10


Question:
Chlamydomonas and Volvox are similar because

1.they both are motile

2.they are members of the Chlorophyta

3.both (a) and (b)

4.none of these

Posted Date:-2021-08-17 23:42:10


Question:
Coacervates were experimentally produced by

1.Fischer and Huxley

2.Sidney Fox and Oparin

3.Urey and Miller

4.Jacob and Monod

Posted Date:-2021-08-17 23:42:10


Question:
Dichlorophenyl dimethyl urea (DCMU)

1.inhibits oxygen evolution and non-cyclic photophosphorylation

2.promotes oxygen evolution and non-cyclic photophosphorylation

3.both

4.none of these

Posted Date:-2021-08-17 23:42:10


Question:
Diversification in plant life appeared

1.due to abrupt mutations

2.suddenly on earth

3.by seed dispersal

4.due to long periods of evolutionary changes

Posted Date:-2021-08-17 23:42:10


Question:
During World War II which Bryophyta was used in surgical dressing

1.sphagnum

2.funaria

3.pteris

4.riccia

Posted Date:-2021-08-17 23:42:10


Question:
Elaters of Marchantia are

1.haploid

2.diploid

3.triploid

4.polyploid

Posted Date:-2021-08-17 23:42:10


Question:
Fern plants are

1.hydrophytes

2.amphibious

3.hygrophytes

4.mesophytes

Posted Date:-2021-08-17 23:42:10


Question:
Flowering dependent on cold treatment is

1.cryotherapy

2.vernalization

3.cryogenics

4.none of these

Posted Date:-2021-08-17 23:42:10


Question:
Homologous organs indicate the

1.convergent evolution

2.parallel evolution

3.common descendent

4.natural selection

Posted Date:-2021-08-17 23:42:10


Question:
Horsetail is the common name of

1.equisetum

2.marchantia

3.marselia

4.pteris

Posted Date:-2021-08-17 23:42:10


Question:
In addition to seeds, which of the following characteristics are unique to the seed-producing plants

1.sporopollenin

2.lignin present in cell walls

3.pollen

4.megaphylls

Posted Date:-2021-08-17 23:42:10


Question:
In DNA, the adenine normally pairs with

1.cytosine

2.guanine

3.Thymine

4.uracil

Posted Date:-2021-08-17 23:42:10


Question:
In Funaria stomata are found on

1.theca

2.leaf

3.apophysis

4.stem

Posted Date:-2021-08-17 23:42:10


Question:
In seed plants, which part of a pollen grain has a function most like that of the seed coat

1.sporopollenin

2.male gametophyte

3.sporophyll

4.stigma

Posted Date:-2021-08-17 23:42:10


Question:
Microfilaments are composed mainly of a protein called

1.actin

2.tubulin

3.myosin

4.chitin

Posted Date:-2021-08-17 23:42:10


Question:
Monohybrid ratio is

1.9:3:3:1

2. 9:1

3. 9:3:1

4.3:1

Posted Date:-2021-08-17 23:42:10


Question:
Rubisco content of choroplast is

1.20%

2.16%

3.25%

4.50%

Posted Date:-2021-08-17 23:42:10


Question:
Saprophytic fungi

1.engulf their food in order to break it down

2.secure their food from dead organic materials

3.both (a) and (b)

4.none of these

Posted Date:-2021-08-17 23:42:10


Question:
Semiautonomous organelle in the cell is

1.chloroplast

2.vacuole

3.peroxisomes

4.endoplasmic reticulum

Posted Date:-2021-08-17 23:42:10


Question:
Smooth endoplasmic reticulum is the site of

1.protein synthesis

2.carbohydrate synthesis

3.amino acid synthesis

4.lipid synthesis

Posted Date:-2021-08-17 23:42:10


Question:
Species that occur in different geographical regions separated by special barrier are

1.allopatric

2.sympatric

3.sibling

4.none of these

Posted Date:-2021-08-17 23:42:10


Question:
Synecology deals with

1.ecology of many species

2.ecology of many populations

3.ecology of community

4.none of the above

Posted Date:-2021-08-17 23:42:10


Question:
The amount of phagocytosis done by the Plasmodium

1.is greater than by the water mold mycelium

2.is lesser than by the water mold mycelium

3.is equal to by the water mold mycelium

4.none of the these

Posted Date:-2021-08-17 23:42:10


Question:
The experimental material garden pea used by Mendel is

1.cross fertilized crop

2.both self and cross fertilized

3.self fertilized crop

4.may vary with ecotype

Posted Date:-2021-08-17 23:42:10


Question:
The lower Bryophytes are usually termed as

1.mosses

2.liverworts

3.sporophytes

4.ferns

Posted Date:-2021-08-17 23:42:10


Question:
The main function of centrosome is

1.secretion

2.osmoregulation

3.protein synthesis

4.formation of spindle fiber

Posted Date:-2021-08-17 23:42:10


Question:
The main way that pine trees disperse their offspring is by using

1.fruits that are eaten by animals

2.wind blown seeds

3.squirrels to bury cones

4.spores

Posted Date:-2021-08-17 23:42:10


Question:
The number of spores produced in fern sporangium is

1.32

2.16

3.72

4.64

Posted Date:-2021-08-17 23:42:10


Question:
The pyramid of energy in any ecosystem is

1.always upright

2.may be upright or invented

3.always inverted

4.none of these

Posted Date:-2021-08-17 23:42:10


Question:
When alleles of two contrasting characters are present together, one of the character express and the other remains hidden.This is the

1.law of purity of gametes

2.law of segregation

3.law of independent assortment

4.law of dominance

Posted Date:-2021-08-17 23:42:10


Question:
Which algal division is divided up into three main groups consisting of the golden-brown algae, the yellow-green algae and the diatoms?

1.chlorophyta

2.chrysophyta

3.phaeophyta

4.pyyrophyta

Posted Date:-2021-08-17 23:42:10


Question:
Which algal division never produces motile, flagellated cells among any of its members

1.chlorophyta

2.rhodophyta

3.chrysophyta

4.phaeophyta

Posted Date:-2021-08-17 23:42:10


Question:
Which fern yields antihelminthic drug

1.adiantum

2.pteris

3.salvinia

4.dryopteris

Posted Date:-2021-08-17 23:42:10


Question:
Which is wrong in respect to bryophytes

1.water is essential for fertilization

2.presence of archegonia

3.presence of ciliated sperms

4.presence of autotrophic independent sporophyte

Posted Date:-2021-08-17 23:42:10


Question:
Which of the following does not represent a human disease caused by fungi

1.ring worm

2.cryptococcosis

3.malaria

4.jock itch

Posted Date:-2021-08-17 23:42:10


Question:
Which of the following is associated with the structure of Golgi complex

1.cristae

2.cisternae

3.tonoplast

4.none of these

Posted Date:-2021-08-17 23:42:10


Question:
Which of the following statements are true regarding law of segregation

1.alleles separate with each other during gametogenesis

2.the segregation of factors is due to the segregation of chromosomes during meiosis

3.law of segregation is called as law of purity of gametes

4.all of the above

Posted Date:-2021-08-17 23:42:10


Question:
Which of these is most important in making the typical seed more resistant to adverse conditions than the typical spore

1.a different type of sporopollenin

2.an internal reservoir of liquid water

3.integuments

4.ability to be dispersed

Posted Date:-2021-08-17 23:42:10


Question:
Which of these spores are characteristic of the black bread mold Rhizopus

1.ascospore and zygospore

2.arthrospore and blastospore

3.sporangiospore and zygospore

4.arthrospore and ascospore

Posted Date:-2021-08-17 23:42:10


Question:
Which spore is on a club and results from the fusion of two nuclei from different strains of the same fungi?

1.blastospore

2.ascospore

3.basidiospore

4.conidiospore

Posted Date:-2021-08-17 23:42:10


Question:
__________ produce basidiospores

1.slime molds

2.dimorphic fungi

3.club fungi

4.sac fungi

Posted Date:-2021-08-17 23:42:10


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