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17101.

Question : How are disaccharides digested?

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Solution :ACTION of intestinal JUICE
MALTOSE `overset("MALTASE ")to`, Glucose + Glucose Isomaltose `overset("Isomaltase ")to `Glucose+Galactose
Sucrose `overset("SUCRASE ") to ` Glucose + Fructose
Lactose `overset("Lactase ")to `, Glucose + Galactose
17102.

Question : How are bacteria classified on basis of their shapes ?

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SOLUTION :Bacillus (rod-SHAPED), Coccus (SPHERICAL), Vibrio (comma shaped) and SPIRILLUM (spiral shaped).
17103.

Question : How are animals classified on the basis of economic importance?

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Solution : 1. Animals for FOOD and food products
2. ECONOMICALLY beneficial animals
3. Animals of aesthetic IMPORTANCE
4. Animals for scientific RESEARCH
17104.

Question : How are actin and myosin filament arranged in a muscle fibre?

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17105.

Question : How are alcoholic beverages made ?

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Solution :1. The conversion of pyruvate to ethanol takes PLACE in malted barley and grapes through fermentation. Yeasts CARRYOUT this processunder ANAEROBIC conditions and this conversion increases ethanol concentration.
2. If the concentration increases, it's toxic effect kills yeast cells and the left out is CALLED beer and wine respectively
17106.

Question : How are adrenal cortex and adrenal medulla different from hormone point of view ?

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Solution :ADRENAL cortex PRODUCES hormones that are absolutely essential for LIFE while adrenal medulla produces hormones that act during emergency SITUATIONS.
17107.

Question :How an idiogram is prepared?

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Solution : In making idiogram a chromosome preparation is photographed and the HOMOLOGOUS CHROMOSOMES are paired and are ORDERED in a series of decreasing size.
17108.

Question : How air is cleaned in the nasal chambers?

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Solution :Vestibular part of NASAL chamber is with ciliated epitheliumand mucus - SECRETING goblet cells. Mucus traps the dustparticles andmicrobes. CILIA act as filter . Nasal secretionalso has lysozymewhich kills the BACTERIA .
17109.

Question : How aeration affects the process of absorption of water?

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Solution :In poorly AERATED soil DEFICIENT in oxygen, absorption of water is HIGHLY reduced.
17110.

Question : How are vascular bundles arranged in a dicot stem? What kind of vascular bundles are these?

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SOLUTION : In a RING. These are conjoint and OPEN vascular BUNDLES.
17111.

Question : How ABA involves in stomatal closure.

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Solution :ABA helps in reducing transpiration rate by closing stomata. It INHIBITS `K^+`uptake by guard cells and PROMOTES the leakage of malic ACID. It results in CLOSURE of stomata
17112.

Question : How a dicot leaf differs anatomically from a monocot leaf?

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PARALLEL venation
differentiation of PALISADE and SPONGY parenchyma
stomata only on UPPER side
stomata on both sides

Answer :B
17113.

Question : How a dicot leaf differs anatomically from a monocot leaf ?

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PARALLEL venation
Differentiation of PALISADE and SPONGY parenchyma
Stomata only on UPPER side
Stomata on both sides

Answer :B
17114.

Question : Horsetails are included under

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GYMNOSPERMS
Bryophytes
Pteridophytes
ALGAE

ANSWER :C
17115.

Question : Horseshoe shaped stele is present in :

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T.S . of SELAGINELLA root
T.S. of Selaginella stem
T.S. of ADIANTUM petiole
T.S . of Adiantum rhizome

Answer :C
17116.

Question : Horse-tail is the common name of the pteridophyte

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Selaginella
EQUISETUM
Adiantum
Ginkgo

Solution :Horse-tail is the COMMON NAME of the PTERIDOPHYTE Equisetum.
17117.

Question : Hormones Target gland Gonadotrophins (LH,FSH)_____

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SOLUTION :GONAD(TESTIS and OVARY)
17118.

Question : Hormones Target gland Hypothalamic hormones_____

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SOLUTION :PITUITARY
17119.

Question : Hormones Target gland Corticotropin (ACTH)_____

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SOLUTION :ADRENAL CORTEX
17120.

Question : Hormones produce their effects on target tissues by binding to specific proteins called……….

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SOLUTION :HORMONE RECEPTOR
17121.

Question : Hormones of which of the following endocrine glands lacks peptides, amines and sulphur?

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THYROID and adrenal gland
ANTERIOR PITUITARY
TESTES
Poseterior pituitary and pancreas

Solution :Hormones of testes are steroid in nature. They are derived from cholesterol.
17122.

Question : Hormones of testis and Hormones of ovaries

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SOLUTION :
17123.

Question : Hormones of adrenal cortex and Hormones of adrenal medulla.

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SOLUTION :
17124.

Question : Hormones including in the category of catecholamines are

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Prollactin
ADRENALINE - nor - adrenaline
ADRENAL
Mineralcorticoid

ANSWER :B
17125.

Question : Hormones are regulatory chemicals.

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Solution :HORMONES regulates various processes by TWO methods. Some physiological ACTIVITIES are performed by release of stimulatings. Some inhibitory chemicals regulate rate, amount and type of activitiesunder CONTROL.
Thus, it regulates various physiological activities under control by STIMULATING or inhibitory action. So they are called regulatory chemicals.
17126.

Question : Hormons areknown as chemical messenger justify.

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SOLUTION :Hormones are released into the blood stream and circulated as chemical signals. These act SPECIFICALLY on certain organs or TISSUES called target organs or tissues. These speed up or slow down or alter the activity of target tissues or organs. Hence they are KNOWN as chemaical messengers.
17127.

Question : Hormones are called chemical signals that stimulate specific target tissues. Which is the correct location of these receptors in of protein hormones ?

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EXTRA cellular MATRIX
BLOOD
Plasma membrene
Nucleus

Solution :Hormone is PRESENT in receptor target TISSUE and it is in the plasma membrane of targt cell.
17128.

Question : Hormones are called chemical signals that stimulate specific target tissues. Which is the corret location of these receptors in case of protein hormones?

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Extracellular matrix
Blood
Plasma membrane
Nucleus

Solution :Hormones of PROTEINS nature bind to SPECIFIC receptor molecules located on the plasma membrane to FORM the hormone receptor complex.
17129.

Question : Hormones acting as intercellular messengers and are produced in trace amounts are nutrient / non-nutrient.

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SOLUTION :non-nutrient
17130.

Question : Hormones act as ............... to perform specific functions in the target organs.

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SOLUTION :(ORGANIC CATALYSTS / COENZYMES )
17131.

Question : Hormones and Enzymes

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SOLUTION :
17132.

Question : Hormone which is responsible for maintenance of corpus luteum is

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estrogen
adosterone
progesterone
testosterone

17133.

Question : Hormone, which helps in metamorphosis in insects is ………………. .

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PHEROMONE
ECDYSONE
THYROXINE
all of these

SOLUTION :ecdysone
17134.

Question : Hormone that stimulater stomach to secrete stric juice is………… .

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RENIN
ENTEROKINASE
ENTEROGASTRONE
GASTRIN

SOLUTION :N/A
17135.

Question : Hormone secreted by Leydig cells of testes is

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thyroxine
testosterone
growth hormone
estrogen

17136.

Question : Hormone responsible for ovulation is

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LH
FSH
progesterone
testosterone

17137.

Question : Hormone regulating the balance of water and electrolytes in our body

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EPINEPHRINE
nor epinephrine
ADRENAL
Mineralcorticoids

ANSWER :D
17138.

Question : Hormone regulating 24-hour (diuranl) rhythm.

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ADH
Prolaction
Melatonn
Testosterone

ANSWER :C
17139.

Question : _____hormone is released from stomach while____ is released from duodenum.

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SOLUTION :GASTRIN, secretin/Cholecystokinin
17140.

Question : Hormone playing major role in differentiation of T-lymphocytes

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THYROXINE
THYMOSINE
PTH
Thyroid GLAND

ANSWER :B
17141.

Question : Hormone acts on bones and stimulates the process of bone resorption

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PTH
TCT
Thymosin
MELATONIN

ANSWER :A
17142.

Question : Hormonal abnormality is responsible of certain diseases in man.list of some diseases are given below,Write the hormone related to each of it Cretinism

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SOLUTION :Thyroxine/T4, T3
17143.

Question : Hormonal abnormality is responsible of certain diseases in man.list of some diseases are given below,Write the hormone related to each of it Diabetes insipidus

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SOLUTION :ADH/Vasopressin
17144.

Question : Hormonal abnormality is responsible of certain diseases in man.list of some diseases are given below,Write the hormone related to each of it.Gigantism

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SOLUTION :GROWTH hormone/GH/STH/Somatotropin
17145.

Question : Honey is used as an antiseptic, laxative and as a .............

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SOLUTION : SEDATIVE
17146.

Question :Honey is used as ......... (1) an antiseptic (2) a laxative (3) a sedative (4) a substitute for sugar

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1, 2, 3 only
2, 3, 4 only
2, 4 only
1, 2, 3, & 4

Solution :1, 2, 3, & 4
17147.

Question :Homologous chromosomes segregate during :

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fertilization
meiosis
meiosis II
mitosis

Answer :B
17148.

Question : Holophytic nutrition is observed in

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Plantae
Protista
Fungi
Animalia

ANSWER :A
17149.

Question : Holoblastic cleavage is found in

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AVES
MAMMALS
molluscs
FISH

ANSWER :B
17150.

Question : Holoenzyme is the complete enzyme consisting of an apoenzyme and a cofactor. Select the option that correctly identifies the nature of apoenzyme and cofactor {:("Apoenzyme","Cofactor"),("1) Protein","Non -protein"),("2) Non - protein","Protein"),("3) Protein","Protein"),("4) Non - protein","Non - protein"):}

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ANSWER :1