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1.

The process of protein synthesis will be adversely affected by the deficiency of which of the following elements in plants despite adequate availability of nitrogen?
1. Potassium
2. Boron
3. Chlorine
4. Copper

2.

Phosphorylation of glucose during glycolysis is catalysed by

1. Phosphoglucomutase	2. Phosphoglucoisomerase
3. Hexokinase	4. Phosphorylase

3. The exponential growth in plants can be expressed as: W₁ = W₀e^rt where ‘e’ denotes:
1. Initial size at the beginning of the period
2. base of natural logarithms
3. growth rate/elongation per unit time
4. time of growth

4. Consider the given two statements:

Statement I:	In C4 plants, photorespiration does not occur.
Statement II:	C4 plants do not have RuBisCO in any of their cells.

 

1.	Both Statement I and Statement II are correct and Statement II explains Statement I
2.	Both Statement I and Statement II are correct but Statement II does not explain Statement I
3.	Statement I is correct but Statement II is incorrect
4.	Statement I is incorrect but Statement II is correct

5.

According to NCERT textbook, what is the number of ATP molecules that can be regarded as a net gain during aerobic respiration of one molecule of glucose?

1. 2	2. 30
3. 36	4. 38

6.

The given diagram shows the scheme of:

1.	Cyclic photophosphorylation and Y is NADPH
2.	Cyclic photophosphorylation and Y is ATP
3.	Non-Cyclic photophosphorylation and Y is NADPH
4.	Non-Cyclic photophosphorylation and Y is ATP

7. What percentage in atmosphere of carbon dioxide can become damaging to plants over long periods?

1.	0.03 to 0.04	2.	0.04 to 0.05
3.	0.05	4.	more than 0.05

8. The correct and complete equation for the process of photosynthesis in higher plants will be:

1.	6CO2 + 12H2O + light energy → C6H12O6 + 6O2+ 6H2O
2.	6CO2 + 6H2O + light energy → C6H12O6 + 6O2
3.	CO2 + H2O + light energy → [CH2O] + O2
4.	C6H12O6 + 6O2 → 6CO2 + 6H2O

9.

Majority of the nutrients that are essential for the growth and development of plants become available to the roots due to:
1. Microbial actions in the soil
2. Wet deposition from the atmosphere
3. Addition of fertilizers
4. Weathering and breakdown of rocks

10.

Mycorrhiza is a symbiotic association of fungus with root system which helps in:

A. Absorption of water	B. Mineral nutrition
C. Translocation	D. Gaseous exchange

Options:

1. Only A	2. Only B
3. Both A and B	4. Both B and C

11.

Consider the following events occurring during mass flow [pressure flow] of phloem sap at the source. The initial events are given in correct chronological sequence. But some of the statements carry mistakes regarding the principles of the process. Identify them:
I. The sucrose is passively transported to the companion cells of the smallest veins in the leaves.
II. The sucrose is actively transported from the companion cells to the sieve tube elements.
III. Water moves by osmosis from the nearby xylem in the same leaf vein.
IV. Hydrostatic pressure moves the sucrose and other substances through the sieve tube cells, towards a sink.
1. I and II only
2. III and IV only
3. I, II and III only
4. I, II, III and IV

12. Consider the two statements:
Statement I: Excess of manganese in higher plants may induce deficiency of iron.
Statement II: Manganese inhibits translocation of iron at apex.
1. Both Statement I and Statement II are correct and Statement II explains Statement I
2. Both Statement I and Statement II are correct but Statement II does not explain Statement I
3. Statement I is correct and Statement II is incorrect
4. Statement I is incorrect and Statement II is correct

13.

Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called:

 

1.	Plasticity	2.	Norm of the reaction
3.	Development noise	4.	Acclimatisation

14.

The continued oxidation of acetyl CoA via the TCA cycle requires the continued replenishment of:

I. Oxaloacetic acid

II. NAD+

III. FAD

 

1.	I and II only	2.	I and III only
3.	II and III only	4.	I, II and III

15.

The outputs of the Krebs cycle do not include:

1. NADP	2. ${\mathrm{FADH}}_2$
3. ATP	4. ${\mathrm{CO}}_2$

16.

Unlike a symporter and an antiporter, a uniporter:
1. is not an integral membrane protein
2. is a cell surface carbohydrate
3. is not a co-transporter
4. cannot be used for active transport

17. Look at the walls of the guard cells and the orientation of cellulosic microfibrils in them and select the correct statements:
   
 Statement I: The inner wall of each guard cell, towards the pore or stomatal aperture, is thick and elastic.
Statement II: Cellulose microfibrils are oriented longitudinally rather than radially making it easier for the stoma to open.   
1. Statement I is correct and statement II is also correct
2. Statement I is correct but statement II is incorrect
3. Statement I is incorrect and Statement II is incorrect
4. Statement I is incorrect and statement II is correct

18.

Gas exchange in the human lungs takes place across the respiratory membrane which is made up of:

1.	alveolar macrophages and the alveolar cell membrane
2.	alveolar cell membrane and its basement membrane
3.	alveolar cell membrane and capillary membrane
4.	alveolar cell membrane, capillary membrane, and fused basement membranes

19.

An investment of loose connective tissue entering the liver with the portal vessels and sheathing the larger vessels in their course through the organ is termed as:
1. Falciform ligament
2. Glisson’s capsule
3. Cantlie’s line
4. Ligamentum teres

20. Seed dormancy can be overcome by all the following methods except:
1.  Mechanical abrasions or vigorous shaking
2.  Microbial action
3.  Subjecting seeds to chilling conditions
4.  Treating seeds with abscisic acid or para-ascorbic acid

21.

Arrange the following events in chronological sequence [first to last]:
1. protein-coated triacylglycerols enter lacteals
2. triacylglycerol coated with protein
3. fatty acids and glycerol packaged into micelles
4. bile salts emulsify fats
5. lipase digests fat
1. 1,2,4,5,3
2. 2,5,4,3,1
3. 3,5,4,1,2
4. 4,5,3,2,1

22.

Which of the following is connected to the floor of the oral cavity by the frenulum?

1. oesophagus	2. muscles of mastication
3. lips	4. tongue

23.

Intrinsic factor helps in the absorption of:
1. Amino acids
2. Sodium
3. Glucose
4. Vitamin B-12

24.

Which of the following is not correctly matched?

I:	Thoracic chamber is formed dorsally by	Sternum
II:	Thoracic chamber is formed ventrally by	Vertebral column
III:	Thoracic chamber is formed laterally by	Ribs
IV:	Thoracic chamber is formed on the lower side by	Diaphragm

Options:

1.	I and II only	2.	II only
3.	III and IV only	4.	I, II, III and IV

25. How many of the following can be characterized as action of gibberellins on plants?

I:	They can be used to increase the length of grape stalks.
II:	They can elongate and improve the shape of apple.
III:	They speed up malting process in brewing industry.
IV:	They hasten the maturity period of juvenile conifers.
V:	They promote bolting in many plants with rosette habit.

 

1.	2	2.	3
3.	4	4.	5

26.

Myelin sheath around the axons in the PNS is secreted by:

1.	oligodendrocytes	2.	axons
3.	Schwann cells	4.	ependymal

27. The cardiac output can be increased by:

I.	Sympathetic neural signals
II.	Adrenal cortical hormones

1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect

28.

Under normal physiological conditions, what amount of oxygen is delivered to the tissues?

1.	4 ml	2.	5 ml
3.	15 ml	4.	20 ml

29.

The type of joint seen between the carpal bones is:

 

1.	Hinge	2.	Pivot
3.	Gliding	4.	Saddle

30.

The least common of WBCs in the human blood are:

1.	Eosinophils	2.	Lymphocytes
3.	Neutrophils	4.	Basophils

31. During a cardiac cycle, the ventricular systole will lead to:

1.	ventricular filling.
2.	the atrioventricular valves to close, and then the semilunar valves to open.
3.	the semilunar valves to close, and then the atrioventricular valves to open.
4.	pressure to become greater in the aorta and pulmonary trunk than in the ventricles.

32.

ATPase activity is found in:

1.	Myosin head	2.	Myosin tail
3.	G-Actin	4.	Troponin

33.

Another name for lymph would be:

 

1.	Extra-cellular fluid	2.	Tissue fluid
3.	Plasma ultrafiltrate	4.	Serous fluid

34.

The part of the sarcomere that is composed of only myosin myofilaments is:

1.	A band	2.	I band
3.	M line	4.	H zone

35.

Uricotelic mode of passing out nitrogenous wastes is found in

1.	reptiles and bird	2.	birds and annelids
3.	amphibians and reptiles	4.	insects and amphibians

36.

The reabsorption, from the filtrate, of sodium, glucose and amino acids:
1. involves the Bowman's capsule
2. is restricted to the loop of Henle
3. occurs mainly in the proximal convoluted tubules
4. occurs mainly by osmosis

37.

Which of the following will not be equal in normal physiological conditions?

1.	Partial pressure of oxygen in deoxygenated blood and partial pressure of oxygen in tissues
2.	Partial pressure of carbon dioxide in alveoli and partial pressure of carbon dioxide in oxygenated blood
3.	Partial pressure of oxygen in oxygenated blood and partial pressure of oxygen in alveoli
4.	Partial pressure of carbon dioxide in tissues and partial pressure of carbon dioxide in deoxygenated blood

38.

Presence of ketonuria and glycosuria is indicative of:

1. Renal failure	2. Diabetes mellitus
3. Nephrotic syndrome	4. Renal stones

39.

The resting axonal membrane is impermeable to:
I: Sodium ions
II: Potassium ions
III: Negatively charges proteins present in the axoplasm

1.	I and II only	2.	I and III only
3.	II and III only	4.	I, II and III

40. Identify the incorrect statement:

1.	The descending limb of loop of Henle is permeable to water but almost impermeable to electrolytes.
2.	The ascending limb of loop of Henle is impermeable to water but allows transport of electrolytes actively or passively.
3.	DCT is capable of reabsorption of bicarbonate ions and selective secretion of hydrogen and potassium ions and ammonia to maintain the pH and electrolyte balance in the body.
4.	PCT does not play any role in reabsorption of bicarbonate ions and selective secretion of hydrogen and ammonia to maintain the pH and electrolyte balance in the body.

41.

If the atrioventricular node is damaged:
1. SA node would not develop action potential
2. atria will fail to contract
3. the impulse will not reach AV node
4. the impulse will not reach ventricles

42.

Hypocalcaemia can lead to:

1.	Duchenne Muscular Dystrophy	2.	Tetany
3.	Renal calculi	4.	Myasthenia gravis

43.

Some hormones can act on their target cells through second messengers. Identify the one that does not:

1.	cortisol	2.	adrenaline
3.	FSH	4.	calcitonin

44.

A hormonal disorder that develops when pituitary gland produces too much growth hormone during adulthood is known as:

1.	cretinism	2.	gigantism
3.	Conn’s syndrome	4.	acromegaly

45.

Identify the correct statement regarding the pineal gland or the hormone secreted by it:

1.	The gland is situated on the ventral side of the forebrain
2.	The hormone secreted by the gland is called as melanin
3.	The hormone regulates the diurnal rhythm of our body
4.	The hormone decreases immunity

46.

In males, androgens like testosterone secreted by Leydig cells in testes do not:

1.	regulate the development, maturation and functions of the male accessory sex organs
2.	control the development and regulation of the secondary sexual characters
3.	play a major stimulatory role in the process of spermatogenesis
4.	produce catabolic effects on protein and carbohydrate metabolism

47.

When one enters a dark room from a bright area:
1. retinol is converted to rhodopsin and eye sensitivity is decreased
2. rhodopsin is converted to retinol and eye sensitivity is decreased
3. rhodopsin is converted to retinol and eye sensitivity is increased
4. retinol is converted to rhodopsin and eye sensitivity is increased

48.

Somatostatin from the hypothalamus:

1.	stimulates secretion of insulin and glucagon by pancreas
2.	inhibits secretion of insulin and glucagon by pancreas
3.	stimulates secretion of growth hormone from anterior pituitary
4.	inhibits secretion of growth hormone from anterior pituitary

49.

In the ear, the utricle and the saccule are located in the:

1. cochlea	2. semicircular canal
3. spiral organ (organ of Corti)	4. vestibule

50.

From outside to inside, the correct sequence of cells in the inner layer of human retina will be:
1. Photoreceptor cells, Bipolar cells, Ganglion cells
2. Ganglion cells, Bipolar cells, Photoreceptor cells
3. Photoreceptor cells, Ganglion cells, Bipolar cells
4. Ganglion cells, Photoreceptor cells, Bipolar cells