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

Posted Date:-2021-02-21 11:34:12


Question:
Allosteric enzymes consist of several

1. polypeptide chains

2.inhibitors

3.temperature ranges

4. active sites

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


Question:
Amoeba was described in detail by

1.Aristotle

2. Rosenhoff

3.Ronald Ross

4. Hirshfield

Posted Date:-2021-02-21 11:34:12


Question:
Amoeba was discovered by

1. Twait

2. Hofkins

3.Jenner

4.Rosenhof

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


Question:
 Entamoeba differs from amoeba in not having

1. Pseudopodia

2. Nucleus

3.Contractile vacuole

4.Ectoplasm

Posted Date:-2021-02-21 11:34:12


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

1.capillary rise

2.phloem

3. xylem

4.both xylem and phloem

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


Question:
 Gibberellins were named after a fungus known as

1.Gibberella acuminata

2.Gibberella africana

3.Gibberella fujikuroi

4.Gibberella gaditijirrii

Posted Date:-2021-02-21 11:34:12


Question:
 In Amoeba; nutrition is

1.Holozoic

2.Parasitic

3.Saprobic

4.Holophytic

Posted Date:-2021-02-21 11:34:12


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

1. inhibitors

2.regulators

3.allosteric enzymes

4. activators

Posted Date:-2021-02-21 11:34:12


Question:
 The fastest enzyme is

1.carbonic anhydrase

2.pepsin

3.DNA polymerase

4.DNA gyrase

Posted Date:-2021-02-21 11:34:12


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

1.allosteric substrate

2. reactants

3.allosteric modulators

4.inhibitors

Posted Date:-2021-02-21 11:34:12


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

1.feedback inhibition

2.allosteric inhibition

3.competitive inhibition

4. non-competitive inhibition

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


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

1.cytokinin

2.gibberellin

3.zeatin

4.auxin

Posted Date:-2021-02-21 11:34:12


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

1.Apoenzymes

2.Holoenzymes

3.Allosteric enzymes

4.Coenzymes

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


Question:
In Amoeba; excretion occurs through

1.Contractile vacuole

2.Plasmalemma

3.Parapodia

4. Nucleus

Posted Date:-2021-02-21 11:34:12


Question:
This is an adulterant

1.Pesticides

2.Urea

3. Iron filings in tea

4.All of the above

Posted Date:-2021-02-21 11:34:12


Question:
Kingdom Protista includes

1.Amoeba; Euglena; Pseudomonas

2.Amoeba; Euglena; Escherichia

3. Amoeba; Euglena; Penicillium

4.Amoeba; Euglena; Chlamydomonas

Posted Date:-2021-02-21 11:34:12


Question:
Living amoeba is

1.Light green

2.Pale blue

3.Translucent

4.Transparent

Posted Date:-2021-02-21 11:34:12


Question:
Nullification of genetic dwarfism is possible by spraying with

1. zeatin

2.auxin

3.gibberellin

4.cytokinin

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


Question:
Posterior end of Amoeba is characterized by

1. Amphid

2. Lack of food vacuoles

3.Uropygium

4.Plasmid

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


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

1.substrate

2.inhibitors

3.polypeptide chains

4.allosteric site

Posted Date:-2021-02-21 11:34:12


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

1. Koshland

2.Fischer

3.Kuhne

4. Arrhenius

Posted Date:-2021-02-21 11:34:12


Question:
The earliest phases of synthesis of gibberellin occur in

1.plastids

2. mitochondria

3.peroxisome

4.cytoplasm

Posted Date:-2021-02-21 11:34:12


Question:
The gibberellin involved in flowering is

1. GA1

2.GA3

3.GA4

4.GA9

Posted Date:-2021-02-21 11:34:12


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

1. stomach

2.heart

3. intestine

4. kidneys

Posted Date:-2021-02-21 11:34:12


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

1. zeatin

2.gibberellin

3. ethylene

4.cytokinin

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


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

Posted Date:-2021-02-21 11:34:12


Question:
This is not the locomotory organ of protozoa

1. Flagella

2.Cilia

3. Parapodia

4. Pseudopodia

Posted Date:-2021-02-21 11:34:12


Question:
When touched with needle; Amoeba will

1.Split instantly

2.Die

3.Move away

4.Develop pseudopodia

Posted Date:-2021-02-21 11:34:12


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