Kitab-o-qalam

Q: The principal site for the absorption of digested food materials is the:

A) Duodenum

B) Ilium

C) Small intestine

D) Large intestine

Q: Protoplasm is commonly divided into somatoplasm and germ plasm, which respectively give rise to somatic cells and germ cells.In the next generation:

A) Only somatic cells are passed and germ cells die with the individual

B) Only germplasm is transmitted and the somatoplasm is formed a new at each generation

C) Both type of cells are passed from parents to the offspring

D) Neither somatopalsm nor germpalsm is transmitted

Q: Enzymes play very important role in living system by way of:

A) Catalysing biochemical reaction

B) Synchronizing nervous mechanism

C) Supplementing food substance

D) Controlling behaviour pattern

Q: The precursors for the formation of fatty acids are provided by:

A) Vitamin A

B) Acetyl CoA

C) Glucose

D) Fructose

Q: Diuresis condition:

A) Increase the volume of urine excreted

B) Decrease the volume of urine excreted

C) Decrease the electrolytic balance

D) Increase the electrolytic balance

Q: If a cat is inverted and dropped from a certain height, the animal lands on its feet.This balancing phenomenon is more in quadripedal animal.It is by:

A) The balancing mechanism of brain

B) The balancing mechanism of limbs

C) The balancing mechanism of thoracic muscles

D) The balancing mechanism of otolith of era

Q: Thrombosis is the:

A) Clotting of blood inside the blood vessel

B) Clotting of blood inside the heart

C) Failure of blood clotting mechanism

D) Clotting of blood inside the brain

Q: During meiosis,chiasma are observed at pachytene.Presence of chiasmata reduces the possibility of another occuring in the near vicnity.This phenomenon is called:

A) Interference

B) Position Effect

C) Coupling and Repulsion

D) Cis-trans Effect

Q: Calcium ion is associated with the conversion of:

A) Prothrombin into thrombin

B) Trysinogen itno Trypsin

C) Chymotrypsinogen into Chymotrypsin

D) Glucose into Glycogen

Q: Mark the incorrect statement:

A) Noramlly nerve impulse pass in one direction only but they may conducted in either direction too

B) Generally impulse flowing in a nerve fibre spreads with the neighbouring fibres

C) In a nerve fibre the impulse is always conducted at constant amplitude and velocity and the larger the nerve fibres the more rapidly they conduct

D) After one impulse has passed along the nerve fibre, there is referactory period during which the nerve fibre is neither excitable nor conductive

Q: proenzyme is the:

A) Active form of enzyme

B) Inactive form of enzyme

C) Precursor of enzyme

D) Inhibitor of enzyme

Q: Acrosomes is derived from the:

A) Golgi complex of sperm

B) Mitochondria of sperm

C) Golgi complex of ovum

D) Lysosome of sperm

Q: The fusion of male and female nucleus is termed as:

A) Apomixis

B) Amphimixis

C) Double fertilization

D) Epiauxesis

Q: During external fertilization the male and female gametes recognize and get attached to each other, due to:

A) Fertilizin - Antifertilizin Reaction

B) Mobility of sperm

C) Similar surface membranes

D) None of these

Q: In all groups of animals male gametesare produced is enormous numbers. The main significance of this is that:

A) A female gamete under normal conditions does not go unfertilized by sperm

B) Many sperms are required in Fertlization

C) Many sperms will introduce more inheritable characteristics

D) All of these

Q: The correct sequence of gametogenesis is:

A) Mutiplication phase - Growth phase - Maturation phase

B) Growth phase - Multiplication phase - Maturation phase

C) Maturation phase - Growth phase - Multiplication phase

D) Multiplication phase - Maturation phase - Growth phase

Q: The first cleavage plane of eggs of higher mammals is:

A) Meridional plane

B) Vertical plane

C) Equatorial plane

D) Latitudnal plane

Q: Cleavage differs from mitosis in that:

A) It occurs in zygote

B) It results in identical daughter cells

C) It occurs only in invertebrates

D) It occurs in only vertebrates

Q: Gastrula is the stage in embryonic development of frog when:

A) Embryo has three primary germ layers

B) Embryo has ectodrem, endodrem and a blastopore

C) Embryo has ectodrem, endodrem, mesoderm and rudimentary nervous system

D) Embryo has rudimentary nervous system

Q: In frog, the liver is derived from:

A) Ectoderm

B) Endoderm

C) Mesoderm

D) Mesoendoderm

Q: In frog, the first skeletal part to become differentiated is:

A) Slylopodium

B) Zengopodium

C) Autopodium

D) Metacarpals

Q: If hen's egg is coated with clay:

A) It become unbreakable

B) It withstands environmenatl conditions

C) The young one dies of suffocation

D) The young one is better protected

Q: An insecticide, applied to the stem, root, leaves or seeds of the plants, is absorbed and reaches different parts of the plants, ingests the poison through its sucking mechanism.Such a poison is termed as:

A) Fumigant

B) Contact poison

C) Respiratory poison

D) Systemic poison

Q: Which of the following statements is not true?

A) The development of amnion and chorion occurs after gastrulation and neurulation

B) Amnion and Chorion are formed by the folds of somatopleure

C) The chorionic will increase the absorptive area of chorion

D) In mammals the allantois acts as a urinary bladder

Q: Which one of the following statements about circadian rhythm is correct?

A) Circadian rhythm, dependent on endogenous clock , is restricted to birds and mammals

B) An animal's circadian rhythm is not exactly 24 hours

C) The period of circadian rhythm is not exactly 24 hours.

D) Circadian rhythm is necessary because the earth is tilted on its axis

Q: Which of the following was the era of reptiles?

A) Palaezoic

B) Coenozoic

C) Mesozoic

D) Proterozoic

Q: Horses appeared in:

A) Miocene

B) Pliocene

C) Eocene

D) Oligocene

Q: Which of the following organs of man is not a vestigial organs?

A) Vermiform Appendix

B) Wisdom Teeth

C) Ear ossicles

D) Nicitating membrane

Q: Atavistic characters are:

A) Characters which have remained unaltered since the origin of a species

B) Characters which have disappeared totally

C) Characters which have normally disappeared in advanced forms but occurs occasionally

D) Characters which have developed in advanced forms but are occasionally found absent due to mutation

Q: In commensalism the:

A) Population of commensal is increased while that of the host remains unaffected

B) Population of commensal and the host remains unaffected

C) Population of both commensal and host increases

D) Population of commensal increases, while the population of the host decreases

Q: Environmental units which afford uniform environmental conditions to the inhabiting species are called:

A) Ecotypes

B) Isotypes

C) Biotypes

D) Biotopes

Q: Each human kidney has nearly:

A) 1 million nephrons

B) 2 million nephrons

C) 0.75 million nephrons

D) 0.5 million nephrons

Q: During biological oxidation, pyruvic acid is:

A) One of the intermediate products in the TCA cycle

B) A precursor for lactic acid formation

C) Decarboxylated oxidatively, yielding CO2

D) Yielding only during the absence of oxygen

Q: Volumetrically the vital capacity of a human lungs is equal to:

A) Inspiratory capacity + Expiratory reserve volume

B) Residual capacity + Inspiratory Capacity

C) Inspiring capacity + Residual capacity

D) Total lung capacity + Residual capacity

Q: The maximum quantity of usable energy per molecule of glucose broken down, is obtained through:

A) Aerobic respiration in a muscle cell

B) Anaerobic respiration in a muscle cell

C) Lactic acid formation in a muscle cell

D) Lactic acid formation in a liver cell

Q: During Ornithine cycle the two products which are formed into a relatively harmless compounds are:

A) Ammonia and CO2

B) Urea and CO2

C) Ammonia and Urea

D) Urea and Uric acid

Q: With respect to development of frog, which one of the following pairs is not correctly matched?

A) Cleavage : Holoblastic

B) Morula : Blastomeres

C) Blastula : Balstopore

D) Gastrula : Triploblastic

Q: Cell is also known as the physiological unit of the body because:

A) Cell perform all activities exclusively

B) All metabolic reaction take place in nucleus within the cell

C) All metabolic reaction take place in cytoplasm within the cell

D) The enzymes which catalyze biological oxidation are formed within the cell

Q: If a man from sea coast of Mumbai is taken to Mount Everest:

A) His breathing rate will increase, but heart rate will decrease

B) His breathing rate will decrease, but heart beat will increase

C) His breathing rate and heart beat will increase

D) His breathing rate and heart beat will decrease

Q: The animal protoplasm constitute nearly 1 to 2 parts of carbohydrates. These are made of:

A) Carbon and Hydrogen

B) Carbon, Hydrogen and Oxygen

C) Carbon, Hydrogen and Nitrogen

D) Carbon, Hydrogen and Calcium

Q: Mental retardation in children suffering from galactosemia can be avoided by:

A) Giving them more proteinous diet

B) Giving them more milk

C) Giving them milk free diet

D) Giving them milk fortified with vitamins

Q: The recombination of haemoglobin with oxygen in blood can be promoted by:

A) Increasing oxygen concentration in the blood

B) Decreasing oxygen concentration in the blood

C) Increasing CO2 Concentration in the blood

D) Increasing CO2 concentration in the blood

Q: Respiratory quotient (R.Q.) means:

A) Ratio of CO2 given off the O2 Consumed

B) Volume of CO2 consumed

C) Volume of CO2 consumed + O2 intake

D) Volume of oxygen consumed + CO2 given off

Q: If R.B.Cs are kept in hypertonic solution they will:

A) Die without change in shape

B) Dilate and may burst

C) Retain the normal size

D) Shrink in size

Q: Mammals have niconcave R.B.Cs. The physiological use for it is:

A) To increase the surface area

B) To decrease the surface area

C) To accommodation the haemoglobin molecule

D) Friction free movements through capillaries

Q: Mammals are said to have a "double circulatory system". This means that:

A) The blood vessels are paired

B) There are two systems one from the heart to the lungs and back to the heart and the second from rest of the body to the heart

C) The blood circulates twice as quickly

D) There are two types of blood vessels attached to every organ

Q: Chemical transmission of nerve impulses through synapsis is by the help of:

A) ATP

B) Acetylcholine

C) Choline

D) Pyruvic Acid

Q: Penetration of sperms through the plasma membrane of the eggs is achieved by:

A) Physical activity of the sperm

B) Mechanical activity of the sperm

C) Mechanical activity of the egg

D) Physio-chemical activity of the acrosome of the sperm

Q: In mammals, when the eggs are released from the ovary, they are commonly encased in a layer of follicular cells, called:

A) Cornea radiata

B) Cornea malpighii

C) Fertilization membrane

D) Cortical membrane

Q: The fertilization membrane:

A) Attracts more spermatozoa towards the egg

B) Blocks the entrance of late arriving spermatozoa

C) Protects the egg from injuries

D) Acts as a semipermeable membrane

Multiple Choice Questions

Zoology

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