biology MCQs – Page 49

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 Review each marked answer and report any item that may be outdated or unclear.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
961. branches of biology and medicine concerned with the structure and function of plant and animal cells is called___________?
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A. Orology

B. Cytology

C. Semiology

D. Nephrology

962. Which of the following fishes excrete large volume of diluted urine?
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A. Bony Marine fishes

B. Fresh water fishes

C. Both depending upon the surrounding water

D. None of these

963. Ingestion of some water with food in Amoeba takes place by the process of ______ ?
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A. Phagocytosis

B. None of these

C. Endosmosis

D. Pinocytosis

964. Diatomaceous earth is used for making __________?
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A. Fire proof bricks

B. Insecticides

C. Fertilizers

D. Weedicides

965. A condition in which there is a decrease of oxygen to the tissue despite adequate blood flow to the tissue is_________?
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A. Dysphasia

B. Hypoxia

C. None

D. Aphasia

966. Accumulation of lipid molecules in brain cells lead to____________?
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A. mental retardation

B. oedema

C. paralysis

D. all of these

967. Thick, waxy & leathery cuticle around leaves is present in___________?
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A. Mesophytes

B. Xerophytes

C. Hydrophytes

D. Halophytes

968. Tricuspid valve is present_____________?
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A. Between left atrium and left ventricle

B. At base of pulmonary artery

C. At base of aorta

D. Between right atrium and right ventricle
969. On which of the following site the posterior pituitary hormone acts predominantly?
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A. Descending limb of loop of Henle

B. Ascending limb of loop of Henle

C. Collecting tubules

D. Proximal convoluted tubule

970. The distal blind end of the malpighian tubules bathes freely in____________?
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A. Haemocoel

B. Intestines

C. Coelom

D. Digestive tract

971. In many which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen?
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A. Chordata

B. Echinodermata

C. Arthropods

D. Annelida

972. Parabronchi are present in__________?
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A. cockroach

B. frog

C. birds

D. fish

973. Which one of the following is representing the group of diatoms?
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A. Cochlodinium, Gymnodinium, Lenodinium, Peridinium

B. Pinnularia, Navicula, Cymbella, Melosira

C. Nostoc, Anabaena, Aulosira, Cylindrospermum

D. Euglenamorpha, Hedneria , Heteronema, Colacium

974. Which of the vascular channels are related to Juxtramedullary nephrous only?
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A. Vasa recta

B. Peritubualr capillaries

C. Afferent and efferent arterioles

D. Vasa nervosa

975. They are present in the underground parts of the plants and stored food?
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A. chloroplast

B. leucoplast

C. chromoplast

D. stem

976. They are widespread as protective coatings on fruits and leaves?
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A. waxes

B. chitin

C. cholesterol

D. all of these

977. Animals that produce metabolic heat at low level and also absorb heat from the surroundings are called__________?
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A. Ectotherms

B. Heterotherms

C. Homeotherms

D. Endotherms

978. The number of daughter paramecia produced following conjugation is _______ ?
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A. 8 from two conjugants

B. 8-16 from two conjugants

C. 8 from one conjugant

D. 16 from two conjugants

979. Villi and microvilli increase__________?
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A. ingestion

B. digestion

C. absorption

D. assimilation

980. Which one of these is an insect?
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A. Spider

B. Scorpion

C. Moth

D. Mite