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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

7601.

Question :What is the function of the pyloric sphincter?

Answer»

Solution : The opening of the stomach into the duodenum is guarded by the PYLORIC sphincter. It periodically allows PARTIALLY digested food to ENTER the duodenum and also prevents REGURGITATION of food.
Discussion
7602.

Question :What is the function of the cardiac sphincter ?

Answer»

Solution : A cardiac SPHINCTER or gastroesophageal sphincter REGULATES the opening of OESOPHAGUS into the STOMACH .
Discussion
7603.

Question : What is the function of ribosomes?

Answer»

SOLUTION :PROTEINS SYNTHESIS.
Discussion
7604.

Question : What is the function of pulvinus ? Give one example of the plant having it.

Answer»

Solution :SWOLLEN leaf base is called pulvinus. It HELPS to perform seismonastic MOVEMENTS in Mimosa PUDICA (SENSITIVE plant).
Discussion
7605.

Question : What is the function of polysome ?

Answer»

SOLUTION :Polysomes are formed by lining up of MANY ribosomes which join an mRNA CHAIN. These help in the FORMATION of SEVERAL copies of a particular polypeptide.
Discussion
7606.

Question : What is the function of peroxisomes?

Answer»

SOLUTION :They DECOMPOSE TOXIC HYDROGEN peroxide to water and oxygen.
Discussion
7607.

Question : What is the function of phloem parenchyma ?

Answer»

SOLUTION :The main function of phloem parenchyma is to STORE FOOD and other substances like Resin, MILK, mucus etc. and ALSO help in transport of food.
Discussion
7608.

Question : What is the function of oxytocin?

Answer»

Solution :Contraction of UTERINE SMOOTH mescles during CHID BIRTH.
Discussion
7609.

Question : What is the function of ospharidium?

Answer»

Solution :OSPHARIDIUM are helpful to TEST the purity of WATER.
Discussion
7610.

Question : What is the function of Oligodendrocytes ?

Answer»

SOLUTION :From myelin SHEATH AROUND the axons in the ORGAN as schwann cells are absent here
Discussion
7611.

Question : What is the function of nephridia

Answer»

Solution :NEPHRIDIA REMOVES EXCRETORY SUBSTANCES from the body of EARTHWORM
Discussion
7612.

Question : What is the function of nephridia ?

Answer»

SOLUTION :EXCRETION. They regulate the volume and COMPOSITION of body fluids.
Discussion
7613.

Question : What is the function of lymph?

Answer»

TRANSPORT of `O_(2)` into brain
Transport of `CO_2` into lungs
BRING INTERSTITIAL fluid in blood
Bring RBC and WBC in lymph node

Solution :Bring RBC and WBC in lymph node
Discussion
7614.

Question : What is the function of lymph ?

Answer»

TRANSPORT of `O_2` into brain
Transport of `CO_2` into lungs
Bring INTERSTITIAL fluid in blood
Bring RBC and WBC in lymph nod

Solution :Bring interstitial fluid in blood
Discussion
7615.

Question : What is the function of leghaemoglobin is root nodules of leguminosae?

Answer»

INHIBITS activation of nitrogenase
Removes `O_2`
DIFFERENTIATION of root nodules
nif GENE is expressed

Solution :Removes `O_2`
Discussion
7616.

Question : What is the function of lateral line sense organs?

Answer»

Solution :The LATERAL line SENSE ORGAN in FISHES helps in detection of CURRENT and waves in water.
Discussion
7617.

Question : What is the function of Interstitial cells ?

Answer»

SOLUTION :To produce HORMONE TESTOSTERONE (MALE sex hormone).
Discussion
7618.

Question : What is the function of hairs and mucus in the nasal cavity?

Answer»

Solution :The hairs and mucus ITET tne aust particles PRESENT in the AIR passing through the nostrils. .
Discussion
7619.

Question : Write the functions of epiglottis.

Answer»

Solution :Eniglottis is a THIN elastic ap at the Junction of nasopharynx and LARYNX, It PREVENTS the FOOD from ENTERING into larynx and avoids choking on food.
Discussion
7620.

Question : What is the function of enterogastrone?

Answer»

It stimulates the SECRETION of digestive juices in the STOMACH
stimulates the flow of pancreatic juice
It REGULATES the flow of bile
It in hibits the secretion of gastric juice

Solution : It in hibits the secretion of gastric juice
Discussion
7621.

Question : What is the function of Eustachian tube ?

Answer»

Solution :Eustachian tube CONNECTS middle EAR with pharynx. It helps in maintaining air pressure on both the sides of tympanum. At the junction of eustachian tube and pharynx valve is present which remains CLOSED in normal CIRCUMSTANCES. It opens during swallowing, yawning or sudden change in height. When air enters lumen of ear or go out, it maintains balance on either side of tympanum.
Discussion
7622.

Question : Collateral glands of cockroach help in

Answer»

SOLUTION :HELPS in the FORMATION of OOTHECA.
Discussion
7623.

Question : What is the function of ATP in cell metabolism ?

Answer»

SOLUTION :Are the ENERGY CURRENCY of CELL.
Discussion
7624.

Question : What is the function of calcitonin?

Answer»

it increaes calcium level in blood.
It decreases calcium level in blood
It stimulates steroid synthesi.
In increases absorption of water in kidney TUBULES.

Solution :Calcitonin is a hormone SECRETED by the thyroid gland. It LOWERS the calcium level in the blood by SUPPRESSING the release of calcium ions from the BONES.
Discussion
7625.

Question : What is the function of centrioles?

Answer»

SOLUTION :They HELP during CELL DIVISION.
Discussion
7626.

Question : What is the function of antidiuretic hormone? Where is it produced and what stimull Increases or decreases its secretion?

Answer»

SOLUTION :Antidiuretic hormone increases reabsorption of water in the kidney tubules. It is produced in the posterior lobe of the pituitary GLAND. When there is excess LOSS of FLUID from the body or increase in the blood pressure, ADH is secreted more. When there is no loss of fluid from the body, it is secreted less.
Discussion
7627.

Question : What is the function of afferent nerve fibres?

Answer»

Solution :To CONDUCT impulse from peripheral TISSUES andorgans to the central nervous SYSTEM.
Discussion
7628.

Question : What is the function of albumin?

Answer»

TRANSPORT of hormones
BLOOD clotting
MAINTENANCE of OSMOTIC pressur
immunity

Solution :maintenance of osmotic pressur
Discussion
7629.

Question : What is the function of aldosterone?

Answer»

Solution :Aldosterone stimulates the reabsorption of SODIUM and WATER andeliminates potassium and phosphate ions through exretion THUS it helps in maintaining electrolytes OSMOTIC pressure and blood pressure
Discussion
7630.

Question : What is the function of a root hair?

Answer»

SOLUTION :To ABSORB WATER and MINERAL NUTRIENTS.
Discussion
7631.

Question : What is the function of a polysome ?(Gk. Poly = many, Soma = body)

Answer»

Solution :It is a STRUCTURE made up of Ribosome attached with mRNA chain. They possess part of genetic code to copy one type of POLYPEPTIDE. They are found in cytoplasm during active PROTEIN SYNTHESIS.
Discussion
7632.

Question : What is the function of a guard cell?

Answer»

SOLUTION :FUNCTIONS in the exchange of gases between theinterior and exterior of a LEAF.
Discussion
7633.

Question : What is the full form of VAM?

Answer»

SOLUTION :VESICULAR ARBUSCULAR MYCORRHIZA.
Discussion
7634.

Question : What is the full form of Rubisco?

Answer»

SOLUTION :RUBP CARBOXYLASE,
Discussion
7635.

Question : What is the full form of MTOCs ? Where are they present?

Answer»

Solution :MICROTUBULE ORGANISING centres Centrioles act as MTOCS.
Discussion
7636.

Question : What is the full form of ECG?

Answer»

SOLUTION :ELECTROCARDIOGRAM.
Discussion
7637.

Question : What is the full form of A and I bands?

Answer»

SOLUTION :A is ANISOTROPIC and I is ISOTROPIC.
Discussion
7638.

Question : What is the feature of a metacentric chromosome ?

Answer»

SOLUTION :In metacentric chromosomes centromere is seen in the MIDDLE. So the chromosome is divided into TWO EQUAL parts.
Discussion
7639.

Question : What is the feature of a metacentric chromosome?

Answer»

Solution :The METACENTRIC chromosome has a centromere in the MIDDLE region with TWO equal arms of the chromosome.
Discussion
7640.

Question : What is the favourable season for cultivating mulberry plants?

Answer»

SOLUTION :JUNE, JULY, NOVEMBER and DECEMBER
Discussion
7641.

Question : What is the fate of primary xylem in a dicot root showing extensive secondary growth?

Answer»

It is RETAINED in the centre of the axis
It GETS crushed
MAY or may not GET crushed
It gets surrounded by primary PHLOEM

Answer :B
Discussion
7642.

Question : What is the fate of primary xylem in a dicot root showing extensive secondary growth? (A) It is retained in the centre (B) It gets crushed (C) May or may not get crushed (D) It gets surrounded by primary phloem

Answer»

It is retained in the centre
It GETS crushed
May or may not get crushed
It gets surrounded by primary phloem

Solution :It is retained in the centre of the axis
Primary xylem is present in MIDDLE PART of the root. When secondary growth takes place in root primary phloem tissue is pushed OUTWARDS while primary xylem root remains inside.
Discussion
7643.

Question : What is the epidermal cell modification in plants which prevents water loss?

Answer»

Solution :Bulliform cells prevents LOSS of WATER. Bulliform cells or mechanical cells are epidermal cells which are LOCATED in grass or monocot plants. It helps in water STRESS condition for closing of stomata and similarly to prevent loss of water by transpiration.
Discussion
7644.

Question : What is the epidermal cell modification in plants which prevents water loss ?

Answer»

Solution :In monocot EPIDERMAL cells FORM bulliform or MOTOR cells which help in reducing LOSS of water.
Discussion
7645.

Question : What is the End Systolic Volume (ESV) ?

Answer»

SOLUTION :End systolic volume (ESV) : The ventricles do not empty completely during ejection, only HALF of the blood within the ventricle at the end of diastole is pumped out during subsequent systole. The AMOUNT of blood LEFT in the ventricle at the end of systole when ejection is COMPLETE is called ESV.
Discussion
7646.

Question : What is the end product of glycolysis in aerobes and where does this process occur ? List the conditions under which the fermentation occurs in plant cells ?

Answer»

Solution :(i) End product of glycolysis :
Glucose `+2ADP+2 Pi+2 NAD rarr`2 Pyruvic acid + 2 ATP + `2 NADH_(2)`.
(ii) Glycolysis OCCURS in cytoplasm outside the mitochondria.
(iii)FERMENTATION in plant cells occurs in absence of OXYGEN.
Discussion
7647.

Question :What is the effect of vagus nerve on the heart rate?

Answer»

SOLUTION :It SLOWS the HEART RATE.
Discussion
7648.

Question : What is the effect of sympathetic system on the rate of heart beat ?

Answer»

SOLUTION :INCREASES HEART BEAT RATE.
Discussion
7649.

Question : What is the effect of red light 740 nm on the short-day plants?

Answer»

Solution :It REVERSES the effect of red LIGHT 660 nm.
Discussion
7650.

Question : What is the effect of increase of CO_(2)concentration on photosynthesis in plants?

Answer»

SOLUTION :RATE of PHOTOSYNTHESIS INCREASES.
Discussion