biology Mcqs
951. How many vertebrae are present in thoracic region?
comments icon0

A. 4

B. 5

C. 7

D. 12
952. Normal resting membrane potential of a neuron is_____________?
comments icon0

A. 80 mv

B. 60 mv

C. 50 mv

D. 70 mv
953. A fracture hematoma has____________?
comments icon0

A. Destructive properties.

B. Healing properties.

C. Dead cells

D. Neutralizing properties.

954. Stem of Psilophyton an example of psilogsida is differentiated into an underground rhizome and an aerial part both of which are _________ branched
comments icon0
A. Dichotomously

B. Isotomous

C. Trichotomously

D. Multichotomously

955. Photosystem II has molecules which absorbs maximum light of___________?
comments icon0
A. 680 nm

B. 700 nm

C. 100 m

D. 670 nm

956. From one pyruvate passing through Krebs cycle, how many NADH are formed?
comments icon0
A. 3

B. 2

C. 1

D. 4

957. Nissls granules are present in which part of the neuron_________________?
comments icon0

A. Myelin sheath

B. Dendrite

C. Axoplasm

D. Soma
958. The space between the overtopped dichotomous branches was occupies by a sheet of _________ cells during evolution of megaphyllas?
comments icon0

A. Collenchyma

B. Sclerenchyma

C. Parenchyma

D. Chlorenchyma
959. Which of the following kidney stones are most common?
comments icon0
A. Calcium oxalate

B. All of these

C. Uric acid

D. Calcium phosphate

960. Protein which acts as hormone is__________?
comments icon0

A. Casein

B. Oxytocin

C. Trypsin

D. Keratin

961. branches of biology and medicine concerned with the structure and function of plant and animal cells is called___________?
comments icon0

A. Orology

B. Cytology

C. Semiology

D. Nephrology

962. Which of the following fishes excrete large volume of diluted urine?
comments icon0

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 ______ ?
comments icon0
A. Phagocytosis

B. None of these

C. Endosmosis

D. Pinocytosis

964. Diatomaceous earth is used for making __________?
comments icon0
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_________?
comments icon0

A. Dysphasia

B. Hypoxia

C. None

D. Aphasia

966. Accumulation of lipid molecules in brain cells lead to____________?
comments icon0
A. mental retardation

B. oedema

C. paralysis

D. all of these

967. Thick, waxy & leathery cuticle around leaves is present in___________?
comments icon0

A. Mesophytes

B. Xerophytes

C. Hydrophytes

D. Halophytes

968. Tricuspid valve is present_____________?
comments icon0

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?
comments icon0

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____________?
comments icon0
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?
comments icon0

A. Chordata

B. Echinodermata

C. Arthropods

D. Annelida

972. Parabronchi are present in__________?
comments icon0

A. cockroach

B. frog

C. birds

D. fish

973. Which one of the following is representing the group of diatoms?
comments icon0

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?
comments icon0
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?
comments icon0

A. chloroplast

B. leucoplast

C. chromoplast

D. stem

976. They are widespread as protective coatings on fruits and leaves?
comments icon0
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__________?
comments icon0

A. Ectotherms

B. Heterotherms

C. Homeotherms

D. Endotherms

978. The number of daughter paramecia produced following conjugation is _______ ?
comments icon0
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__________?
comments icon0

A. ingestion

B. digestion

C. absorption

D. assimilation

980. Which one of these is an insect?
comments icon0

A. Spider

B. Scorpion

C. Moth

D. Mite

981. If a man having blood group AB marries a woman who is heterozygous for blood group, what is the probability of their first child having blood group B?
comments icon0

A. 45%

B. 71%

C. 50%

D. 40%

982. Which of the following constituent is/are maximum in the filtrate that leaves proximal convoluted tubules?
comments icon0

A. All of these

B. Amino acids

C. Glucose

D. Nitrogenous waste
983. Malarial parasite is injected into man as__________?
comments icon0

A. none of these

B. zygote

C. sporozoites

D. merozoites

984. Which of the following bones are present in pectoral girdle?
comments icon0

A. Clavicle

B. Scapula

C. Both of these

D. None of these

985. The utilization of the products of digestion is called___________?
comments icon0

A. ingestion

B. absorption

C. assimilation

D. both a and b

986. The terms procariotique and eucariotique were proposed by___________?
comments icon0

A. Haeckel

B. Whittaker

C. Chatton

D. Margulis and Schwartz

987. Which type of motions are present in solid?
comments icon0

A. all of these

B. rotational

C. vibrational

D. translational

988. Kangaroo has an abdominal pouch known as__________?
comments icon0
A. marsupial

B. all of these

C. placenta

D. guttural pouch

989. Which of the following organ is responsible for blood filtration:
comments icon0

A. Heart

B. Kidney

C. Lungs

D. Liver

990. which of the following consists of the dead cells?
comments icon0

A. Parenchyma

991. Which of the following represents osmoregulatory steps taken by hydrophytes?
comments icon0

A. Small and thick leaves to decrease the surface area proportional to the volume of the leave.

B. None of these

C. Stomata closing in sufficient supply, and opening in restricted supply of water.

D. Increases transpiration by increasing the surface area of the leave.
992. Which of the following is a selectively permeable membrane?
comments icon0
A. cell membrane

B. cell wall

C. none of these

D. cytoplasm

993. Which of the following Tikka disease is related with the crop?
comments icon0

A. Paddy

B. None of these

C. Ground nut

D. Musturd

994. Protonephridia are present in____________?
comments icon0

A. Tape worms

B. Flateworm

C. Round worms

D. Segmented worms

995. The membrane of vacuoles is known as__________?
comments icon0

A. Tanoplast

B. All of these

C. Tonoplast

D. Vacuoloplast

996. In human beings influenza is caused by_________?
comments icon0

A. protist

B. fungi

C. virus

D. bacteria

997. A moth is closely related to_________?
comments icon0

A. Cricket

B. Wasp

C. Beetle

D. Butterfly
998. Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss?
comments icon0

A. Hagfish

B. Bony fishes

C. Fresh water fishes

D. None of these

999. Accumulation of lipid molecules in brain cells lead to__________?
comments icon0

A. oedema

B. mental retardation

C. paralysis

D. all of these

1000. Locomotion in diatoms is carried out with the help of__________?
comments icon0

A. Valve

B. Cilia or flagella

C. Raphe

D. Pseudopodium