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Biology (Medical Entrance)

Description: Complete study material for MPPMT Zoology, MPPMT Botany, MPPMT Biology covers all concepts of Energy, Cell, Life Process, Reproduction System, Skeleton System
Number of Questions: 25
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Tags: MPPMT Zoology MPPMT Botany MPPMT Biology Energy Cell Life Process Reproduction System Skeleton System Connective Tissue Nutritional Disorders Disorders of Digestive System Human Blood Components of Blood Conduction of Nerve Impulse Generation and Transmission of Nerve Impulse Evolution
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The bone that is formed by ossification of a tendon is called

  1. membrane bone

  2. dermal bone

  3. sesamoid bone

  4. cartilage


Correct Option: C
Explanation:

The bone formed by the ossification of a tendon is called sesamoid bone. 

In adults, the deficiency of vitamin D causes

  1. rickets

  2. beri-beri

  3. scurvy

  4. osteomalacia


Correct Option: D
Explanation:

In adults, deficiency of vitamin D causes osteomalacia (weak bones liable to easy fracture) and in children, it causes rickets (Softness and deformities) of bones like bow-legs, and pigeon chests. 

Which of the following does not match?

  1. Muscular movement - ATP

  2. Heart - pace-maker

  3. Monocyte - haemoglobin

  4. Nerve impulse - acetylcholine


Correct Option: C
Explanation:

Monocyte is the largest white blood cells (WBCs) whereas heamoglobin is found in RBCs. Thus monocyte is not correctly matched with haemoglobin. 

The junction of an axon and dendrite is called :

  1. Relay

  2. Synapse

  3. Cytone

  4. Conduction Zone


Correct Option: B
Explanation:

The junction between the terminations of two neurons is called a synapse. It is the the junction between the axon of one neuron and the dendrite of another neuron.

A short DNA segment has 80 thymine and 90 guanine bases. The total number of nucleotides is

  1. 160

  2. 40

  3. 80

  4. 340


Correct Option: D
Explanation:

In a DNA segment, the amount of thymine is equal to the amount of adenine and that of guanine is equal to cytosine. So, A = T and G = C 80 = 80 and 90 = 90 Total = 80 + 80 + 90 + 90 = 340. 

Coelentrates differ from other animals in having :

  1. nematocysts

  2. polymorphism

  3. blateral symmetry

  4. skeleton


Correct Option: A
Explanation:

Nematocysts are the characteristic feature of phylum Coelenterate. These are sac like organelles located at the centre of cnidocyte. Cnidocytes or stringing cells occur in entire epidermis except that of basal disc. The free end of each cnidocyte at epidermal surface bears a small and stiff conical spine-like projection called cnidocil or trigger. 

Teeth of rabbits are

  1. thecodont

  2. diphyodont

  3. heterodont

  4. all of these


Correct Option: D
Explanation:

The teeth of rabbit are of several types (Heterodont) with roots in sockets of jaw bones (thecodont) and occur in two sets in life (diphyodont).

Which disease is caused by under secretion of adrenal cortex?

  1. Cretinism

  2. Dwarfism

  3. Sterility

  4. Addison's disease


Correct Option: D
Explanation:

Addison's disease is caused by hyposecretion of adrenal cortex i.e., hyposecretion of aldosterone. This disease is characterized by: (1)        Excessive loss of sodium chloride in the urine. (2)        Lowering of blood pressure. (3)        Muscular weakness. 

Bundle of His is a network of :

  1. Muscular fibre throughout the heart

  2. Muscular fibre throughout the wall of ventricle

  3. Nerve fibre throughout the heart

  4. Nerve fibre throughout the wall of ventricle


Correct Option: B
Explanation:

It is the bundle of cardiac muscle fibers that passes from the atrioventricular node to the interventricular septum and then the ventricles. It conducts the electrical impulses that regulate the heartbeat from the right atrium to the left and right ventricles.

Brunner's glands are located in

  1. oesophagus

  2. duodenum

  3. intestine

  4. stomach


Correct Option: B
Explanation:

Brunner's glands are branched and tubular which are located in duodenum only. These glands help in lubricating the food and separate the solid particle of food. 

Being mammals, whale, dolphin, bat, monkey and horse have some common characters but they also show conspicuous differences. This is due to the phenomenon of

  1. normalisation

  2. genetic drift

  3. divergence

  4. convergence


Correct Option: C
Explanation:

Development of different functional structures from a common ancestral form is called adaptive radiation or divergent evolution. 1.      Varied limb structures of mammals 2.      Darwin's finches of Galapagos island 3.         Australian marsupials

In the recent past, human chromosomes have been studied by a technique, using specific fluorescent dyes, known as

  1. dyeing technique

  2. banding technique

  3. ultra dyeing technique

  4. karyotyping technique


Correct Option: D
Explanation:

In recent past human chromosome have been studied by a techinque using specific, often flouroscent dyes, known as karyotyping technique. The term karyotype is given to the group of characteristics that identifies a particular chromosome set and is usually represented by a diagram called idiogram.

The sex chromosome in females are

  1. XX

  2. XY

  3. YY

  4. XXY


Correct Option: A
Explanation:

The sex chromosomes in females are XX. in female individuals, there are 22 pairs of autosomes and one pair of sex chromosome (22 pair + XX).

Through its bite, tse-tse fly (Glossina) transmits

  1. Trypanosoma gambiense

  2. Plasmodium falciparum

  3. Leishmanis donovani

  4. Wuchereria bancrofti


Correct Option: A
Explanation:

Trypanosomiasis is most serious protozoan disease caused by a flagellate protozoan, Trypanosomiasis gambiense. It is found firstly in blood, than in lymph and finally in the cerebrospinal vfluid of man. Its secondary host is a blood sucking insect Glossina (tse-tse fly). Wuchereria bancrofti causes filariasis or elephantiasis in man. 

Zidovudine drug is used for

  1. cancer

  2. hepatitis

  3. AIDS

  4. malaria


Correct Option: C
Explanation:

Zidovudine, azidothymidine, dideoxyinosine and crixivan are some synthetic drugs which are being used to prevent AIDS. 

The muscles surrounding the pupil of rabbit's eye are :

  1. unstriated and involuntary

  2. striated and voluntary

  3. unstriated and voluntary

  4. striated and involuntary


Correct Option: A
Explanation:

Unstriped or non-striated or visceral or smooth or involuntary muscles are found in iris of eye, oesophagus, stomach, intestine, lungs, urinogenital tract, urinary bladder and blood vessels. 

Hypersecretion of growth hormone in the period of growth leads to :

  1. acromegaly

  2. cushing syndrome

  3. midgets

  4. cretinism


Correct Option: A
Explanation:

The hypersecretion of growth hormone or somatotrophic hormone during adult hood causes acromegaly. Acromegaly patient has a gorilla like appearance with huge hands and legs. 

Heparin is secreted by :

  1. Mast cell

  2. Plasma cell

  3. RBC

  4. All of the above


Correct Option: A
Explanation:

Heparin is a naturally occurring anticoagulant produced by basophils and mast cells.[9] Heparin acts as an anticoagulant, preventing the formation of clots and extension of existing clots within the blood.

Hinge joint is present between :

  1. Humerus and pectoral girdle

  2. Femur and pelvic girdle

  3. Tibia and fibula

  4. Humerus and ulna


Correct Option: D
Explanation:

A hinge joint (ginglymus) is a bone joint in which the articular surfaces are molded to each other in such a manner as to permit motion only in one plane.The best examples of ginglymoid joints are the interphalangeal joints of the hand and those of the foot and the joint between the humerus and ulna.

Defect in amino acid metabolism may result in

  1. albinism

  2. porphyria

  3. Wilson's disease

  4. phenylketonuria


Correct Option: D
Explanation:

Phenylketonuria is disorder caused by the defect in amino acid metabolism. Children suffering with phenylketonuria are unable to breakdown phenyl pyruvic acid into hydroxyl phenyl pyruvic acid. Accumulation of phenyl pyruvic acid causes mental disorder. 

All chordates at one or the other stage have :

  1. pharyngeal gill-slits

  2. vertebral column

  3. two pairs of pentadactyle limb

  4. a movable jaw


Correct Option: A
Explanation:

General characters of chordates are: (1)        Presence of pharyngeal gill slits at any stage of life. (2)        Presence of notochord at any stage of life.  (3)        Presence of dorsal tubular nerve cord.

Indian rhinoceros are protected in :

  1. Kaziranga National Park

  2. Corbett National Park

  3. Gir National Park

  4. Bandipur National Park


Correct Option: A
Explanation:

Indian wildlife comprises about 75,000 species of mammals, 2100 species of birds and plenty of reptiles like lizards, snakes, turtles. Some important Indian wild animals and their site for conservation are as follow. Rhinoceros - Kaziranga National Park Asiatic lion - Gir Forest National Park Wild ass - Rann of Kutch 

A cross used to ascertain whether a genotype is homozygous or heterozygous dominant is termed :

  1. reciprocal

  2. back cross

  3. test cross

  4. monohybrid


Correct Option: C
Explanation:

When F1 hybrid is crossed with one of the two parents form whcih they were derived than such a cross is called back cross. The cross of F1 hybrid to the recessive parent is used to ascertain whether a dominant is homozygous or heterozygous and it is called test cross.

From the taxonomy point of view, which one of the following is correct?

  1. Starfish, catfish, crayfish

  2. Physalia, Solen, Terego

  3. Papilio, Xeropsylla, Musca

  4. Tapeworm, hookworm, silkworm


Correct Option: C
Explanation:

Papillo, Xeropsylla and Musca all belongs to class-insecta of phylum-Arthropoda. 

Cerebral malaria is caused by

  1. Plasmodium vivax

  2. Plasmodium ovale

  3. Plasmodium malariae

  4. Plasmodium falciparum


Correct Option: D
Explanation:

Type of Malaria                                               Pathogen

Cerebral malaria             -                      Plasmodium falciparum

Benign tertian malaria     -                      Plasmodium vivax

Quartan malaria             -                      Plasmodium malariae

Oval malaria                  -                      Plasmodium ovale 

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