NEET Test Series-2021 to 2022/NEET Biology MCQS Mock Test Paper 5 Sample Test,Sample questions

Question:
A patient admitted to the hospital with myocardial infarction is immediately administered with

1.Streptokinase

2.Statins

3.Cyclosporin – A

4. Penicillin


Question:
Allosteric enzymes consist of several

1. polypeptide chains

2.inhibitors

3.temperature ranges

4. active sites


Question:
Allosteric enzymes possess

1.Three types of allosteric sites

2.Active site and three types of allosteric sites

3.Active site and two types of allosteric sites

4.Active site and an allosteric site


Question:
Amoeba was described in detail by

1.Aristotle

2. Rosenhoff

3.Ronald Ross

4. Hirshfield


Question:
Amoeba was discovered by

1. Twait

2. Hofkins

3.Jenner

4.Rosenhof


Question:
 A stethoscope is used by doctors for cardiac auscultation. The second sound of each cardiac cycle is heard when

1.AV node receives signal from SA node

2.Semilunar valves close down after the blood flows into vessels from ventricles

3.AV valves open up

4.Ventricular walls vibrate due to gushing in of blood from atria


Question:
 Allosteric enzymes are

1. smaller than simple enzymes

2.larger than simple enzymes

3. smaller than simple enzymes but not complex

4.larger and more complex than simple enzyme


Question:
 Blood pressure is maximum in mammalian aorta during

1. diastole of the right ventricle

2. systole of the left atrium

3.diastole of the right atrium

4.systole of the left ventricle


Question:
 Entamoeba differs from amoeba in not having

1. Pseudopodia

2. Nucleus

3.Contractile vacuole

4.Ectoplasm


Question:
 Generally; translocation of gibberellins is non-polar occurring through

1.capillary rise

2.phloem

3. xylem

4.both xylem and phloem


Question:
 Gibberellins found in the aleurone layer of barley increases the transcription of

1. lipase and cellulase

2. protease and amylase

3.protease and cellulase

4.lipase and protease


Question:
 Gibberellins were named after a fungus known as

1.Gibberella acuminata

2.Gibberella africana

3.Gibberella fujikuroi

4.Gibberella gaditijirrii


Question:
 In Amoeba; nutrition is

1.Holozoic

2.Parasitic

3.Saprobic

4.Holophytic


Question:
 The control and regulation of biological processes involve some enzymes. They are known as

1. inhibitors

2.regulators

3.allosteric enzymes

4. activators


Question:
 The fastest enzyme is

1.carbonic anhydrase

2.pepsin

3.DNA polymerase

4.DNA gyrase


Question:
 What are the non-substrate molecules binding to the allosteric sites called?

1.allosteric substrate

2. reactants

3.allosteric modulators

4.inhibitors


Question:
Blocking of enzyme action by blocking its active sites is

1.feedback inhibition

2.allosteric inhibition

3.competitive inhibition

4. non-competitive inhibition


Question:
Blood pressure in the pulmonary artery is

1. same as that in the aorta

2.less than that in venae cavae

3. more than that in the carotid

4.more than that in the pulmonary vein


Question:
Elongation or lengthening of rosette plants is obtained by treating it with

1.cytokinin

2.gibberellin

3.zeatin

4.auxin


Question:
Enzymes that are involved in the feedback inhibition are known as

1.Apoenzymes

2.Holoenzymes

3.Allosteric enzymes

4.Coenzymes


Question:
Identify the correct statement

1.Double circulation is characteristic of all vertebrates

2.Volume of blood in pulmonary circulation is more than the volume of blood in systemic circulation at any instant

3.blood pressure in pulmonary circulation is less than that of the systemic circulation

4. a double aortic arch is seen in birds and mammals


Question:
Identify the incorrect statement

1.occurs only in mammals

2. occurs in all vertebrates

3.is composed of systemic circulation

4.is composed of pulmonary circulation


Question:
In Amoeba; excretion occurs through

1.Contractile vacuole

2.Plasmalemma

3.Parapodia

4. Nucleus


Question:
This is an adulterant

1.Pesticides

2.Urea

3. Iron filings in tea

4.All of the above


Question:
Kingdom Protista includes

1.Amoeba; Euglena; Pseudomonas

2.Amoeba; Euglena; Escherichia

3. Amoeba; Euglena; Penicillium

4.Amoeba; Euglena; Chlamydomonas


Question:
Living amoeba is

1.Light green

2.Pale blue

3.Translucent

4.Transparent


Question:
Nullification of genetic dwarfism is possible by spraying with

1. zeatin

2.auxin

3.gibberellin

4.cytokinin


Question:
Oxygenated blood in the cardiac system

1. leaves from right side of the heart

2.leaves from left side of the heart

3.enters lungs from heart

4. does not leave the lungs


Question:
Posterior end of Amoeba is characterized by

1. Amphid

2. Lack of food vacuoles

3.Uropygium

4.Plasmid


Question:
Systemic circulation in the cardiac system refers to

1.carry red oxygenated blood

2.carry blood to the left side of the heart

3.carry blood to the right side of the heart

4.carry oxygenated blood from lungs to heart


Question:
The allosteric enzymes on the top of active sites contain

1.substrate

2.inhibitors

3.polypeptide chains

4.allosteric site


Question:
The “Lock and key” theory of enzyme action was put forward by

1. Koshland

2.Fischer

3.Kuhne

4. Arrhenius


Question:
The earliest phases of synthesis of gibberellin occur in

1.plastids

2. mitochondria

3.peroxisome

4.cytoplasm


Question:
The gibberellin involved in flowering is

1. GA1

2.GA3

3.GA4

4.GA9


Question:
The hepatic portal vein drains blood to the liver from

1. stomach

2.heart

3. intestine

4. kidneys


Question:
The hormone involved in the regulation of florigen synthesis is

1. zeatin

2.gibberellin

3. ethylene

4.cytokinin


Question:
This bioassay is used to test the presence of gibberellins

1.dwarf pea elongation technique

2.chlorophyll preservation test

3.excised radish cotyledon enlargement test

4.rice seedling growth inhibition test


Question:
This is not a function of gibberellins

1.promote dormancy

2.promote cell elongation

3.promote parthenocarpic fruit formation

4.promote elongation of internodes


Question:
This is not the locomotory organ of protozoa

1. Flagella

2.Cilia

3. Parapodia

4. Pseudopodia


Question:
When touched with needle; Amoeba will

1.Split instantly

2.Die

3.Move away

4.Develop pseudopodia


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