biology MCQs – Page 32

Practise multiple-choice questions from biology for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

biology Mcqs
621. Venus flower basket is also known as___________?
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A. Sycon

B. Spongilla

C. Leucoselenia

D. Euplectella
622. The system well developed in the acoelomate is___________?
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A. All of these

B. Transport system

C. Nervous system

D. Excretory system

623. Who first separated bacteria from other protists as a group_____________?
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A. Ernst Haeckel

B. John Hogg

C. Margulis and Schwartz

D. Herbert Copeland
624. In lysogenic cycle the process of spearation of phage DNA from the hosts chromosome and initiation of lytic cycle is called______________?
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A. Lysis

B. Induction

C. Lysogeny

D. Adsorption

625. Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of special hyphal tips called___________?
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A. Constricting ring

B. All of these

C. Haustoria

D. Mildew

626. Which of the following structure primarily helps in attachment of bacteria on various surfaces____________?
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A. Flagella

B. Pili

C. Both of these

D. None of these

627. Foliose lichen are_____________?
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A. Branching

B. Leaf like

C. Crust like

D. Stem like

628. Which of the following contains genes for drug and disease resistance in bacteria?
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A. Plasmid

B. Mesosome

C. Necleotide

D. Ribosome

629. Which of the following structure provides greater pathogenicity to the bacteria__________?
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A. Capsule

B. Slime

C. Cell membrane

D. Cell Wall

630. All of the insectivorous plants are true________________?
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A. Autotrophes

B. Carnivores

C. Saprotrophs

D. Heterotrophs

631. Which of the following is an example of the living member of Psilopsida________________?
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A. Rhynia

B. Psilophyton

C. Cooksonia

D. Psilotum
632. Stentor is a/an____________?
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A. Apicomplexan

B. Ciliate

C. Actinopods

D. Foraniniferan

633. In slime molds spores develop into__________?
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A. Swarm cells

B. Biflagellated cells

C. Amoeboid reproductive cells

D. All of these
634. Loss of appetite due to the fear of becoming obese is____________?
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A. Dyspepsia

B. Anorexia nervosa

C. Bulimia nervosa

D. Piles

635. The one which is present in all aerobic species is _________?
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A. Cytochrome a3

B. Cytochrome b

C. Cytochrome a

D. Cytohrome c
636. Most of the photosynthesis on earth is carried by__________?
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A. Kelps

B. Algae

C. Angiosperms

D. Gymnosperms

637. All the animals of the grade radiata are____________?
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A. Both

B. Unicellular

C. Triploblastic

D. Diploblastic
638. Constricting ring around nematode is formed by_____________?
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A. Arthrobotrys

B. All of these

C. Pleurotus ostreatus

D. Mildews

639. Death cap/death angel (Amanita) and Jack O Latern mushroom are examples of__________?
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A. Edible mushrooms

B. Poisonous mushrooms

C. Both of these

D. None of these

640. Sperms released in water are carried to the mesenchyme in sponges by__________?
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A. Stipules

B. Spines

C. Spicules

D. Amoeboid cell