Test 8 (Class 11) - Type Bio SCAN (Old NCERT)

Biology 1 - Section A

1.

Identify the incorrectly matched pair:

	Mineral required by plant	Function
1.	Magnesium	Constituent of chlorophyll
2.	Manganese	Splitting of water during photosynthesis
3.	Molybdenum	Nitrogen metabolism
4.	Sulfur	Pollen germination

2.

The ʺnetʺ products of glycolysis are:
1. $2 {NAD}^{+}$ , $2 H^{+}$ , 2 pyruvate, 2 ATP, and $2 H_{2} O$ .
2. $6 {CO}_{2}$ , $6 H_{2} O$ , 2 ATP, and 2 pyruvate
3. $2 {FADH}_{2}$ , 2 pyruvate, 4 ATP, and $2 H_{2} O$ .
4.2 NADH, $2 H^{+}$ , 2 pyruvate, 2 ATP, and $2 H_{2} O$ .

3.

Identify the correct statements amongst the following:

I.	Auxins and cytokinins act antagonistically in regulating axillary bud growth
II.	Gibberellins act in concert with auxin to promote stem elongation
III.	In most situations, Abscisic acid acts as an antagonist to gibberellins.

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

4.

The correct sequence of flow of electron during light dependent reactions in plants is:

1.	P680 → P700 → water → NADP+
2.	water → P700 → NADP+→ P680
3.	P700 → P680 → NADP+→ water
4.	water → P680 → P700 → NADP⁺

5.

Pyruvate dehydrogenase activity during aerobic respiration requires:

1.	Calcium	2.	Iron
3.	Cobalt	4.	Magnesium

6.

For the synthesis of one glucose molecule, the number of ATP and NADPH used in Calvin cycle respectively are:
1. 12 and 12
2. 12 and 18
3. 18 and 12
4. 18 and 18

7.

Study the pathway given below:

In which of the following options, correct words for all the three blanks A, B and C are indicated?

	A	B	C
1.	Fixation	Transamination	Regeneration
2.	Fixation	Decarboxylation	Regeneration
3.	Carboxylation	Decarboxylation	Reduction
4.	Decarboxylation	Reduction	Regeneration

8.

Given below are two statements:

Assertion (A):	Action spectrum of photosynthesis is much broader than the absorption spectrum of chlorophyll a.
Reason (R):	Accessory pigments with different absorption spectra are also present in chloroplasts.

1.	Both (A) and (R) are True and (R) is the correct explanation of (A).
2.	Both (A) and (R) are True but (R) is not the correct explanation of (A).
3.	(A) is True but (R) is False.
4.	Both (A) and (R) are false.

9.

Identify the incorrect statement:
1. Frankia does not produce nitrogen-fixing nodules on the roots of non-leguminous plants
2. Microbes like Rhizobium live as aerobes under free living condition and become anaerobic during nitrogen fixing events
3. Nitrogenase is a Mo-Fe protein
4. Azotobacter and Beijernickia are free-living are free living nitrogen-fixing aerobic microbes.

10.

During Plasmolysis:
1. Water is first lost from the cytoplasm and then from the vacuole
2. Water is first lost from the vacuole and then from the cytoplasm
3. Water is lost only from the cytoplasm and not from the vacuole
4. Water is lost only from the vacuole and not from the cytoplasm

11.

Control points where a plant adjusts the quantity and types of solutes that reach the xylem are:
1. Root hairs in the zone of maturation
2. Transport proteins of endodermal cells
3. Suberized Casparian strips in the wall of endodermal cells
4. Living parenchymal cells of the xylem

12.

Consider the two statements:
I. Excess of manganese in plants may induce deficiencies of iron, magnesium and calcium.
II. Manganese inhibits translocation of iron and magnesium at apex and competes with calcium for uptake.
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect

13.

Which one of the following growth regulators is known as the stress hormone?

1.	Abscisic acid	2.	Ethylene
3.	GA₃	4.	Indole acetic acid

14.

Oxidative phosphorylation in mitochondria is driven by energy from:
1. Sunlight
2. NADH
3. FADH₂
4. Chemiosmosis of protons

15.

The mitochondrial electron transport chain is located in:
1. The outer membrane
2. The inner membrane
3. The inter-membrane space
4. Stroma

16.

Assertion: Phloem sap moves form sugar source to sugar sink.
Reason: A storage organ, such as a tuber or bulb, may be a source or a sink, depending on the season.
1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

17.

When the roots begin to sense a water shortage in the soil, abscisic acid (ABA) is released. The increase of which of the following ions in the cytosol of the guard cells is responsible for ultimately bringing about a closure of stomata?
1. Calcium
2. Magnesium
3. Potassium
4. Hydrogen

Biology 1 - Section B

18.

The partial pressure of oxygen in the alveoli of the lungs is
1. equal to that in the blood
2. more than that in the blood
3. less than that in the blood
4. less than that of carbon dioxide

19.

Consider the following statements:

I:	Trypsinogen is activated by enterokinase.
II:	Goblet cells secrete mucus.
III:	Bile pigments help in emulsification of fats.

Which of the above statements are true?
1. I and II only
2. I and III only
3. II and III only
4. I, II, and III

20.

The site of perception of light in plants during photoperiodism is:
1. Axillary bud
2. Leaf
3. Shoot apex
4. Stem

21.

Match the secretions in Column I with source cells in Column II and select the answer from the codes given:

	COLUMN I		COLUMN II
A	Intrinsic factor	P	Pancreatic acini
B	Rennin	Q	Parietal cells in gastric mucosa
C	Nuclease	R	Hepatocytes
D	Bile salts	S	Chief cells in gastric mucosa

Codes:

	A	B	C	D
1.	S	Q	R	P
2.	S	Q	P	R
3.	Q	S	R	P
4.	Q	S	P	R

22.

The common bile duct is formed when the common hepatic duct merges with the:
1. Duct of Rivinus
2. cystic duct
3. pancreatic duct
4. Wharton’s duct

23.

Defaecation is a/an:
1. voluntary process and is carried out by a mass peristaltic movement
2. involuntary process and is carried out by a mass peristaltic movement
3. voluntary process and is carried out by a haustration movement
4. involuntary process and is carried out by a haustration movement

24.

Arrange the following modes of transport of carbon dioxide in the blood from the most common to the least common.
1. bicarbonate ions
2. combined with blood proteins
3. dissolved in plasma
Choose the arrangement that lists them in the correct order from largest to smallest percentage of carbon dioxide transported.
1. 1, 2, 3
2. 1, 3, 2
3. 2, 3, 1
4. 2, 1, 3

25.

Which of the following is not an inhibitory substance governing seed dormancy?
1. Abscisic acid
2. Phenolic acid
3. Para-ascorbic acid
4. Gibberellic acid

Biology 2 - Section A

26.

Reissner's membrane is a thin membrane that separates the scala media from the:
1. oval window
2. scalavestibuli
3. scala tympani
4. round window

27.

Angina pectoris is:
1. an intravascular clot
2. a symptom of decreased oxygen supply to the heart muscles
3. shortness of breath due to pulmonary congestion
4. the most common cause of a cardiac arrest

28.

In the given diagram of the oxygen dissociation curve, under normal physiological conditions, the partial pressure of oxygen at the tissue level is represented by:

1. A
2. B
3. C
4. D

29.

Assertion: The first seven rib pairs known as the fixed or vertebrosternal ribs are the true ribs.
Reason: Only the first seven rib pairs are made up of bone while others are made of cartilage.
1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

30.

During the cardiac cycle the tricuspid and bicuspid valves get closed when:
1. when pressure inside the ventricles is at its lowest
2. when pressure inside the atria is greater than that inside the ventricles
3. when ventricular pressure exceeds that of the atria
4. when pressure is greater in the aorta than in the left ventricle

31.

What percentage of the ventricular filling is contributed by the atrial contraction?
1. 30
2. 50
3. 70
4. 100

32.

Gliding joint is present between:
1. carpals
2. phalanges
3. metacarpals
4. coxal bones

33.

Which of the following will be regarded as a normal thrombocyte count?
1. 1 million per cubic cc
2. 200,000 per cubic mm
3. 1 million per cubic mm
4. 10,000 per cubic mm

34.

Consider the following statements:
I. A motor neuron along with the muscle fibres connected to it constitute a motorunit.
II. The neurotransmitter released at the neuro-muscular junction is Acetylcholine.
III. Myosin head has ATPase activity.
Which of the above statements are true?
1. I and II only 2. I and III only
3. II and III only 4. I, II, and III

35.

Glomerular ultrafiltrate would normally not contain:
1. plasma proteins
2. glucose and amino acids
3. water
4. urea

36.

What structure projects between the afferent arteriole and efferent arteriole next to Bowman's capsule to form the juxtaglomerular apparatus?
1. glomerulus
2. arcuate arteries
3. proximal tubule
4. distal tubule

37.

What is vital capacity of our lungs?
1. Inspiratory reserve volume plus tidal volume
2. Total lung capacity minus expiratory reserve volume
3. Inspiratory reserve volume plus expiratory reserve volume
4. Total lung capacity minus residual volume

38.

Match the following parts of a nephron with their function:

(a)	Descending limb of Henle's loop	(i)	Reabsorption of salts only
(b)	Proximal convoluted tubule	(ii)	Reabsorption of water only
(c)	Ascending limb of Henle's loop	(iii)	Conditional reabsorption of sodium ions
(d)	Distal convoluted tubule	(iv)	Reabsorption of ions, water, and organic nutrients

Select the correct option from the following:

Options:	(a)	(b)	(c)	(d)
1.	i	iii	ii	iv
2.	ii	iv	i	iii
3.	i	iv	ii	iii
4.	iv	i	iii	ii

39.

The highest visual acquity in the human eye is at:
1. optic tract
2. macula lutea
3. fovea centralis
4. optic disc

40.

Consider the following statements:

I:	Many bony fishes, aquatic amphibians and aquatic insects are ammonotelic.
II:	Mammals, many terrestrial amphibians and cartilaginous fishes are ureotelic.
III:	Reptiles, birds, land snails and insects are uricotelic.

Which of the above statements are true?

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

41.

The following is the diagrammatic representation of standard ECG. Identify the correct statement:

1.	P is caused by atrial repolarization
2.	Q, when present, always shows myocardial ischemia
3.	QRS complex is due to time taken by impulse from SA node to AV node
4.	T is caused by ventricular repolarization

42.

Glenoid cavity articulate
1. Clavicle with acromion
2. Scapula with acromion
3. Clavicle with scapula
4. Humerus with scapula

Biology 2 - Section B

43.

Match the following columns and select the correct option:

	Column I		Column II
(a)	Pituitary gland	(i)	Grave's disease
(b)	Thyroid gland	(ii)	Diabetes mellitus
(c)	Adrenal gland	(iii)	Diabetes insipidus
(d)	Pancreas	(iv)	Addison's disease

Options:	(a)	(b)	(c)	(d)
1.	(iii)	(ii)	(i)	(iv)
2.	(iii)	(i)	(iv)	(ii)
3.	(ii)	(i)	(iv)	(iii)
4.	(iv)	(iii)	(i)	(ii)

44.

Identify A, B and C in the diagrammatic representation of the mechanism of hormone action.

Select the correct option from the following:

1.	A = Steroid Hormone; B = Hormone receptor Complex; C = Protein
2.	A = Protein Hormone; B = Receptor; C = Cyclic AMP
3.	A = Steroid Hormone; B = Receptor; C = Second Messenger
4.	A = Protein Hormone; B = Cyclic AMP; C = Hormone-receptor Complex

45.

Which of the following hormones is responsible for both the milk ejection reflex and the foetal ejection reflex?

1.	Estrogen	2.	Prolactin
3.	Oxytocin	4.	Relaxin

46.

Given ahead is an incomplete table about certain hormones, their source glands and one major effect of each on the body in humans. Identify the correct option for the three blanks A, B and C.

Gland	Secretion	Effect on Body
A	Oestrogen	Maintenance of secondary sexual characters
Alpha cells of islets of Langerhans	B	Raises blood sugar level
Anterior pituitary	C	Oversecretion leads to gigantism

Options:	A	B	C
1.	Placenta	Insulin	Vasopressin
2.	Ovary	Insulin	Calcium
3.	Placenta	Glucagon	Calcitonin
4.	Ovary	Glucagon	Growth hormone

47.

The thermostat of human body is located in:
1. Hypothalamus
2. Cerebrum
3. Cerebellum
4. Thalamus

48. Which of the following statements is correct in relation to the endocrine system?

1.	Organs in the body like the gastrointestinal tract, heart, kidney and liver do not produce any hormones.
2.	Non-nutrient chemicals produced by the body in trace amounts that act as intercellular messengers are known as hormones.
3.	Releasing and inhibitory hormones are produced by the pituitary gland.
4.	Adenohypophysis is under direct neural regulation of the hypothalamus.

49.

A major coordinating center in the human brain for sensory and motor signaling to and from the cerebrum is:
1. Cerebellum
2. Thalamus
3. Pons Varolii
4. Hypothalamus

50.

Consider the following statements:
I. Somatic neural system relays impulses from CNS to skeletal muscles.
II. Autonomic neural system transmits impulses from CNS to involuntary organs and smooth muscles.
III. Unmyelinated nerve fibres are commonly found in spinal and cranial nerves.
Which of the above statements are true?
1. I and II only 2. I and III only
3. II and III only 4. I, II, and III

Fill OMR Sheet*

*If above link doesn't work, please go to test link from where you got the pdf and fill OMR from there

CLICK HERE to get FREE ACCESS for 2 days of ANY NEETprep course

Please be patient as the PDF generation may take upto a minute.

Fill OMR Sheet*