05:00 pm dr. hariom gangwar · 2020-06-22 · given certain substances called biological response...

Dr. Hariom GangwarMBBS (KGMU)

8+ yrs Teaching Experience

12:00

PM

05:00

PM

Live Class

Crash Course

Dr. Hariom GangwarM.B.B.S (KGMU)

8+ Yrs Teaching Experience

1,00,000 Student Mentored

01

[www.gangwarinstitute.com]

Contact. : 8400-582-582, 8604-582-582

Root hair absorbs water from soil through

(A) Turgor pressure

(B) Ion exchange

(C) Osmosis

(D) None of the above.

02


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If the size of fruits diminishes in plants, which

mineral ion should be added to soil

(A) Calcium

(B) Boron

(C) Copper

(D) Chlorine.

03


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Synthesis of ADP + Pi ATP in grana

photosynthesis is

(A) Phosphorylation

(B) Photophosphorylation

(C) Oxidative phosphorylation

(D) Photolysis.

04


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Which cell does not respire

(A) Mesophyll cell

(B) Sieve tube cell

(C) Epidermal cell

(D) Cork cell.

05


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Pruning of plants promotes branching due to

sensitisation of axillary buds by

(A) Gibberellin

(B) Ethylene

(C) IAA

(D) Cytokinin.

06


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Cancer is caused due to activation of ..... to ..... and/or

inactivation of ......

(A) Oncogene, tumour suppressor gene, protooncogene

(B) Tumour suppressor gene, oncogene, protooncogene

(C) Protooncogene, oncogene, tumour suppressor gene

(D) Oncogene, protooncogene, tumour suppressor gene

07


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Reaction of a-ketoglutaric acid with ammonia to

form glutamic acid is

(A) Oxidative amination

(B) Reductive amination

(C) Transamination

(D) Ammonification.

08


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Formation of ATP in photosynthesis & respiration

is an oxidation process which utilises the energy

from

(A) Cytochromes

(B) Ferridoxin

(C) Carbon dioxide

(D) Electrons.

09


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Carbon dioxide is liberated during

(A) Photosynthesis

(B) Respiration

(C) Transpiration

(D) Ascent of sap.

10


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Short day plant is

(A) Xanthium

(B) Pisum

(C) Cucumis

(D) Avena.

11

Match the columns I and II, and choose the correct combination

from the options given

Column I Column II

a. Neoplasm 1. Hematopoietic cell tumour

b. Benign tumour 2. Bone cartilage tissue cancer

c. Carcinomas 3. Malignant tumour

d. Sarcoma 4. Cancer of epithelial tissues

e. Lymphomas 5. Noncancerous tumour

6. Initiation of new tumours

(A) a - 2, b - 5, c - 4, d - 3, e – 6 (B) a - 6, b - 4, c - 3, d - 2, e - 1

(C) a - 3, b - 5, c - 4, d - 1, e – 2 (D) a - 3, b - 5, c - 4, d - 2, e - 1.

12


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Ringing/girdling experiment was first performed

by

(A) Hartig

(B) Strassburger

(C) Godlewski

(D) Bose.

13


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Which one is an essential mineral, not constituent

of any enzyme but stimulates the activity of many

enzymes

(A) Zn

(B) Mn

(C) K

(D) Mg.

14


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Cytochromes are

(A) O2 acceptors

(B) H2 acceptors

(C) Electron acceptors

(D) H2O acceptors.

15


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Ganong’s respiroscope is employed for

demonstrating

(A) Heat during respiration

(B) CO2 during fermentation

(C) CO2 during aerobic respiration

(D) Evolution of oxygen during photosynthesis.

16


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Bending of stem towards light is

(A) Photoperiodism

(B) Heliotropism

(C) Photonasty

(D) Hydrotropism.

17


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Tumor cells have been shown to avoid detection and

destruction by immune system. Therefore the patient are

given certain substances called biological response modifiers

(BRM) which activates their immune system and helps in

destroying the tumor. Identify the BRM.

(A) Alpha interferon

(B) Alpha lactalbumin

(C) Alpha-1 antitrypsin

(D) Gamma globulin.

18


Contact. : 8400-582-582, 8604-582-582

Guttation is the process of elimination of water

from plants through

(A) Stomata

(B) Wounds

(C) Lenticels

(D) Hydathodes.

19


Contact. : 8400-582-582, 8604-582-582

In plants, nitrate is reduced to ammonia state in

two steps. In second step, electrons are donated by

(A) Ferredoxin

(B) Nitrate reductase

(C) Nitrite reductase

(D) Cytochroma b5.

20


Contact. : 8400-582-582, 8604-582-582

Which is correct about chlorophyll a and b in

leaves of higher plants

(A) Both are present in equal proportion

(B) Chlorophyll a is more than chlorophyll b

(C) Chlorophyll a is less than chlorophyll b

(D) Chlorophyll b is ten times more than

chlorophyll a.

21


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How many ATP molecules are released when one

molecule of glucose is oxidised in our liver cells

(A) 36

(B) 38

(C) 2

(D) 8.

22


Contact. : 8400-582-582, 8604-582-582

Movement stimulated by external factor is

(A) Spontaneous movement

(B) Paratonic movement

(C) Physical movement

(D) Autonomic movement.

23


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Fill in the blanks

1. In ...a..., a piece of the suspected tissue cut into thin sections is

stained and examined under microscope (...b...) by a

pathologist

2. In radiography, ...c... are used

3. In CT scan, ...d... are used.

(A) a-biopsy, b-histopathological studies, c-X rays, d-gamma rays

(B) b-biopsy, a-histopathological studies, d-X rays, c-gamma rays

(C) b-biopsy, a-histopathological studies, c-X rays, d-gamma rays

(D) a-biopsy, b-histopathological studies, c-X rays, d-X ray.

24


Contact. : 8400-582-582, 8604-582-582

Influx of K+ ions into guard cells and efflux of H+

ions from guard cells lead to

(A) Exosomosis

(B) Plasmolysis

(C) Closing of stomata

(D) Opening of stomata.

25


Contact. : 8400-582-582, 8604-582-582

Salt respiration is

(A) Linking of ion movement with respiratory chain

(B) Active increase in respiration during mineral

absorption

(C) Decrease in respiration during salt absorption

(D) Secretion of salt through respiratory channels.

26


Contact. : 8400-582-582, 8604-582-582

The size of chlorophyll molecule is

(A) Head 15 ×15 Å, tail 20 Å

(B) Head 20 × 20 Å, tail 25 Å

(C) Head 15 × 15 Å, tail 25 Å

(D) Head 10 × 12 Å, tail 15 Å.

27


Contact. : 8400-582-582, 8604-582-582

Alcoholic fermentation occurs in the presence of

(A) Zymase

(B) Amylase

(C) Invertase

(D) Maltase.

28


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Common biosynthetic inhibitor of GA is

(A) CCC

(B) Jasmonic acid

(C) Citric acid

(D) Lactic acid.

29


Contact. : 8400-582-582, 8604-582-582

Medicinal plant harvested from wild for

anticancer compound is

(A) Taxus baccata

(B) Datura stramonium

(C) Rauwolfia serpentina

(D) Ocimum sanctum.

30


Contact. : 8400-582-582, 8604-582-582

Water is lost through hydatchodes. Hydathodes

(A) Remain closed at night

(B) Remain always open

(C) Remain closed during day

(D) Remain open during day.

31


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Phytotron is meant for

(A) Controlled irradiation

(B) Induction of mutations

(C) Controlled humidity

(D) Growing plants under controlled environment.

32


Contact. : 8400-582-582, 8604-582-582

Algae often float on surface of water during day but

sink down during night due to

(A) Evolution and trapping of oxygen bubbles during

the day in their photosynthesis

(B) Becoming light as they consume most of their food

in the night

(C) Warming action of sun during the day

(D) Release of absorbed air by warming of water.

33


Contact. : 8400-582-582, 8604-582-582

Photoperiodism is associated with

(A) Auxin

(B) Chlorophyll

(C) Gibberellin

(D) Florigen.

34


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Prolonged water-logging kills plants due to

(A) Stoppage of root respiration

(B) Dilution of soil nutrients

(C) Dilution of plant cell sap

(D) Leaching of nutrients.

35


Contact. : 8400-582-582, 8604-582-582

Which of the following statements are not true

(a) One ATP yields 32 kJ of energy

(b) Pentose phosphate pathway was discovered by Dickens

(c) When tripalmitin is used as a substrate, R.Q. is 0·7

(d) Energy released by one molecule of glucose on

complete oxidation corresponds to 1292 kJ.

(A) a, b and d (B) a and d

(C) c and d (D) a, c and d

36


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Gene responsible for nitrogen fixation is

(A) Nif

(B) Nitrogenase

(C) Yeast alanine tRNA synthetase

(D) RNA synthetase.

37


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The number of chlorophyll molecules in a

quantasome is

(A) 50-100

(B) 500-600

(C) 300-400

(D) 200-250

38


Contact. : 8400-582-582, 8604-582-582

During night, a person should not sleep under a

tree because the tree

(A) Releases O2 during night

(B) Does not release CO2 during night

(C) Releases CO2 during night

(D) Releases water during guttation.

39


Contact. : 8400-582-582, 8604-582-582

Which of the following is a long day plant

(A) Poppy

(B) Xanthium

(C) Paddy

(D) Soyabem.

40


Contact. : 8400-582-582, 8604-582-582

A twig kept in water having some salt remains

fresh for longer period due to

(A) Decrease in transpiration rate

(B) Exosmosis

(C) Decrease in bacterial degradation

(D) Absorption of more water.

41


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Farmers of a particular region are concerned that premature

yellowing of leaves of pulse crop might cause decrease in the yield.

Which treatment could be beneficial to obtain maximum seed yield

(A) Application of iron and magnesium to promote chlorophyll

synthesis

(B) Frequent irrigation of crop

(C) Treatment of plants with cytokinins alongwith a small does of

nitrogen fertilizer

(D) Removal of all yellow leaves and spraying the remaining

green leaves with 2, 4, 5-T.

42


Contact. : 8400-582-582, 8604-582-582

Chief functions of leaves are

(A) Transpiration and photosynthesis

(B) Respiration and photosynthesis

(C) Respiration and digestion

(D) Respiration and transpiration.

43


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A molecule of ATP is formed as an electron passes

from

(A) Cyt c to Cyt a

(B) Cyt c to Cyt b

(C) Cyt a to Cyt c

(D) Cyt b to Cyt c.

44


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Pineapple can be made to produce fruits

throughout the year by application of

(A) IAA, IBA

(B) NAA, 2, 4-D

(C) Phenyl acetic acid

(D) Cytokinins.

45


Contact. : 8400-582-582, 8604-582-582

Rate of transpiration higher than rate of water

absorption shall cause

(A) Growth

(B) Leaf fall

(C) Wilting

(D) Death.

46


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Nitrifying bacteria convert

(A) Nitrate to nitrogen

(B) Ammonia to nitrogen

(C) Nitrogen into soluble form

(D) Ammonia to nitrate.

47


Contact. : 8400-582-582, 8604-582-582

When cell converts light energy into chemical energy,

which of the following reaction would take place

(A) AMP + iP = ADP

(B) ATP – iP = ADP

(C) ADP + iP = ATP

(D) GDP + iP = GTP

48


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Which is correct for ADP

(A) Two high energy bonds

(B) One high energy bond

(C) Three high energy bonds

(D) None of the above.

49


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Beta vulgaris is

(A) SDP

(B) LDP

(C) DNP

(D) SLDP.

50


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Which of the following scientists is credited with

the mechanism of opening and closing of stomata

related to K+ exchange

(A) Levitt

(B) Sayre

(C) Scarth

(D) Lloyd.

51


Contact. : 8400-582-582, 8604-582-582

Transpiration-cohesion tension theory operates in

(A) Active absorption

(B) Apoplastic movements

(C) Active and passive absorption

(D) Passive absorption.

52


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Water absorption by root hairs occurs until

(A) Concentration of water in the cell sap is higher

(B) Salt concentration in cell sap is higher

(C) They are separated from the soil by a

selectively permeable membrane

(D) Water potential is lower.

53


Contact. : 8400-582-582, 8604-582-582

Which is produced during water stress that brings

stomatal closure

(A) Ethylene

(B) Abscisic acid

(C) Ferulic acid

(D) Coumarin.

54


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Transpiration facilitates

(A) Electrolyte balance

(B) Absorption of water by roots

(C) Opening of stomata

(D) Excretion of minerals.

55


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An RBC and a plant cell having same O.P. are placed

in distilled water

(A) None undergoes any change

(B) Plant cell swells up and bursts but there is no

change in RBC

(C) Both decrease in size and collapse

(D) RBC swells up and bursts but plant cell remains

about the same size.

56


Contact. : 8400-582-582, 8604-582-582

Root pressure is maximum when

(A) Transpiration is high and absorption is low

(B) Transpiration is very low and absorption is high

(C) Transpiration is very high and absorption is high

(D) Transpiration and absorption both are slow.

57


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Which is not caused by deficiency of mineral

(A) Chlorosis

(B) Etiolation

(C) Necrosis

(D) Shortening of internodes.

58


Contact. : 8400-582-582, 8604-582-582

Complete girdling ultimately kills the tree due to

(A) Starvation of root

(B) Stoppage of photosynthesis

(C) Non-movement of minerals

(D) Non-movement of water.

59


Contact. : 8400-582-582, 8604-582-582

For formation of ethanol, pyruvic acid is first

changed to acetaldehyde by enzyme

(A) Pyruvate dehydrogenase

(B) Pyruvate decarboxylase

(C) Alcohol oxidase

(D) Alcohol dehydrogenase.

60


Contact. : 8400-582-582, 8604-582-582

Drooping of Tamarind leaves after sunset is

(A) Photonasty

(B) Phototaxis

(C) Phototropism

(D) Chemotaxis.

61


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Little leaf/leaf rosetting is deficiency symptom of

(A) Zn

(B) Mn

(C) Fe

(D) B.

62


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The process of photosynthesis is

(A) Reductive; exergonic and catabolic

(B) Reductive, endergonic and catabolic

(C) Reductive, exergonic and anabolic

(D) Reductive, endergonic and anabolic.

63


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Which is product of oxidative pentose phosphate

pathway

(A) Pyruvic acid

(B) Acetyl CoA

(C) NADH2

(D) NAD (P) H.

64


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At the time of seed germination, digestive enzymes

are induced to be formed under the influence of

(A) Cytokinin

(B) Gibberellins

(C) Ethylene

(D) Auxin.

65


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An element essential as electron carrier is

(A) Potassium

(B) Zinc

(C) Calcium

(D) Iron.

66


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Chlorophyll b is

(A) C54H70O6N4Mg

(B) C55H70O6N4Mg

(C) C55H72O5N4Mg

(D) C46H72O5N4Mg

67


Contact. : 8400-582-582, 8604-582-582

Glucose administered orally will be used up in

(A) Excretion

(B) Digestion

(C) Respiration

(D) Circulation.

68


Contact. : 8400-582-582, 8604-582-582

Cut or excised leaves remain green for long if

induced to root or dipped in

(A) Gibberellins

(B) Cytokinins

(C) Auxins

(D) Ethylene.

69


Contact. : 8400-582-582, 8604-582-582

Which of the following shows importance of mineral ion

found in middle lamella of plant cells

(A) Associated with the formation of bipolar spindle

during cell division

(B) Essential for splitting of water during

photosynthesis

(C) Required for absorption and utilisation of calcium

(D) Maintenance of ribosomal constituents.

70


Contact. : 8400-582-582, 8604-582-582

The percentage of light energy utilised for

photosynthesis by higher plants is

(A) 42%

(B) 50

(C) 10

(D) 1-2.

71


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A reaction catalysed by an enzyme not found in

mitochondrial matrix

(A) Conversion of pyruvic acid to acetyl CoA

(B) Oxidative decarboxylation of a-ketoglutaric acid

(C) Oxidation of succinic acid

(D) Cleavage of succinyl CoA.

72


Contact. : 8400-582-582, 8604-582-582

A green plant will turn yellow if placed in the

dark. This is called

(A) Etiolation

(B) Dormancy

(C) Chlorosis

(D) Phototropism.

73


Contact. : 8400-582-582, 8604-582-582

Which micronutrient activates enzyme urease

involved in nitrogen metabolism

(A) Boron

(B) Molybdenum

(C) Zinc

(D) Nickel.

74


Contact. : 8400-582-582, 8604-582-582

The empirical formula for chlorophyll a is

(A) C35H72O5N4Mg

(B) C65H70O6N4Mg

(C) C55H72O5N4Mg

(D) C45H70O6N4Mg.

75


Contact. : 8400-582-582, 8604-582-582

Oxalosuccinic acid, a transient intermediary

compound of Kreb's cycle is

(A) 6-carbon compound

(B) 5-carbon compound

(C) 4-carbon compound

(D) 3-carbon compound.

76


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Exponential growth occurs in

(A) Yeast

(B) Bacteria

(C) Asexual reproduction

(D) All of the above.

77


Contact. : 8400-582-582, 8604-582-582

Which of the following is mobile mineral element

in plants

(A) Ca

(B) Mo

(C) Cu

(D) Fe.

78


Contact. : 8400-582-582, 8604-582-582

Both respiration and photosynthesis require

(A) Sunlight

(B) Green cells

(C) Cytochromes

(D) Organic substrate

79


Contact. : 8400-582-582, 8604-582-582

Which of the following is used as a cellular

respiration indicator

(A) Lactic acid

(B) Ethanol

(C) Schiff's reagent

(D) Tetrazolium chloride.

80


Contact. : 8400-582-582, 8604-582-582

Falling of floral parts, leaves and fruits from the

mother plant is called

(A) Senescence

(B) Photoperiodism

(C) Abscission

(D) Vernalisation.

Dr. Hariom GangwarMBBS (KGMU)

8+ yrs Teaching Experience

12:00

PM

05:00

PM

Live Class

Crash Course

05:00 pm dr. hariom gangwar · 2020-06-22 · given certain substances called biological response...

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