Masterclass Test 1 (Full 11th Syllabus)

1.

Identify the incorrect comparison of Kwashiorkor and Marasmus:

		Kwashiorkor	Marasmus
1.	Cause	Protein deficiency with adequate energy intake	Inadequate energy intake in all forms, including protein
2.	Age incidence	Increases after 18 months	Prior to age 1
3.	Main clinical sign	Muscular wasting and loss of subcutaneous fat	Edema and ascites [abnormal buildup of fluid in the abdomen]
4.	Fatty infiltration in liver	Common	Not common

2.

Consider the following traits:
I. Tripartite body division
II. Diverticulum of foregut, stomochord
III. Deuterostome embryonic development
An animal that can show all these traits can be:

1.	Ascidia	2.	Branchiostoma
3.	Asterias	4.	Balanoglossus

3.

Identify the incorrectly matched pair:

1.	Total number of vertebro-sternal ribs in humans	14
2.	Total number of cervical vertebrae in Giraffe	7
3.	Total number of bones in human appendicular skeleton	80
4.	Total number of bones in human skull	22

4.

An important feature of bryophytes is that the embryonic development of the zygote takes place in the:

1. Sporangium	2. Archegonium
3. Protonema	4. Antheridium

5.

If you compare with the normal ECG tracing given in your NCERT, the following ECG shows an abnormal:

1. P wave
2. R wave
3. S wave
4. T wave

6.

The members of Kingdom Monera and Kingdom Protista in Whittaker’s five kingdom classification resemble each other in:

1.	Cell type	2.	Body organization
3.	Nature of cell wall	4.	Nuclear membrane

7.

If a plant species has vertically oriented leaves, its mesophyll is expected to be:
1. divided into well differentiated spongy and palisade layers
2. divided into well differentiated spongy layer but less differentiated palisade layer
3. divided into less differentiated spongy layer but well differentiated palisade layer
4. not divided into spongy and palisade layers

8.

Translocation in phloem always occurs from:
1. Sugar source to a sugar sink
2. Sugar sink to a sugar source
3. Leaf to a root
4. Leaf to xylem and then to phloem

9.

Consider the following statements:
I. Lion, leopard and tiger belong to same genus
II. Lion, leopard, tiger and cats belong to same family
III. Lion, leopard, tiger, cats and dogs belong to same order
This implies that:
1. Cats and dogs are more closely related to each other than cats and leopards
2. Lions share maximum characteristics with dogs
3. Lion, leopard and tiger are capable of interbreeding and producing fertile offspring
4. Lion, leopard, tiger, cats and dogs may belong to the same class in taxonomic hierarchy

10.

If a plant cell immersed in distilled water has a Ψs of -0.7 Mpa and a Ψw of 0 MPa, what is the cell’s Ψp?

1. 0 Mpa	2. -0.3 Mpa
3. +0.7 MPa	4. -0.7 MPa

11.

In the citric acid cycle, a molecule of GTP is formed during the conversion of:
1. $α$ - ketoglutarate to Succinyl-CoA
2. Succinyl-CoA to succinate
3. Succinate to fumarate
4. Fumarate to malate

12.

An excessive loss of fluid from the body can activate the osmoreceptors leading to the secretion of:
1. Angiotensinogen from the liver
2. ADH from the hypothalamus
3. Renin from the juxtaglomerular cells
4. Aldosterone from the adrenal cortex

13.

Identify the incorrectly matched pair:
1. Lichens: mutualistic symbiosis between an alga and a fungus
2. Prions: abnormally folded infectious proteins
3. Viroids: infectious, free low molecular weight RNA
4. Viruses: infectious nucleoprotein with both DNA and RNA

14.

Tetany is caused by:
1. low levels of Ca⁺⁺ in body fluids
2. high levels of Ca⁺⁺ in body fluids
3. low levels of K⁺ in body fluids
4. high levels of K⁺ in body fluids

15.

Match the scientists given in Column I with their contribution in understanding the process of photosynthesis in Column II and select the correct answer from the codes given below:

	COLUMN I		COLUMN II
(A)	Jan Ingenhousz	(a)	Only green parts of the plant are capable of photosynthesis
(B)	F. F. Blackman	(b)	Enzymes must carry out light independent reaction
(C)	C. B. van Neil	(c)	Oxygen comes from water and not from carbon dioxide
(D)	T. W. Engelmann	(d)	First action spectrum of photosynthesis

Codes

	(A)	(B)	(C)	(D)
1.	(a)	(b)	(c)	(d)
2.	(b)	(a)	(d)	(c)
3.	(a)	(b)	(d)	(c)
4.	(b)	(a)	(c)	(d)

16.

Identify the incorrect statement regarding Eubacteria:
1. Cyanobacteria can fix atmospheric nitrogen in specialized cells called heterocysts
2. Chemosynthetic autotrophic bacteria play a great role in recycling nitrogen and phosphorus
3. Heterotrophic bacteria are the only bacteria that do not include any economically useful microbe for humans
4. Mycoplasma lack cell wall and can survive without oxygen

17.

The given diagram shows the arrangement of myofilaments on the myofibril in a skeletal muscle. During muscle contraction the part that does not change in length is labeled as:

1. 1
2. 2
3. 6
4. 7

18.

A cell at G₁ phase has a chromosome content 2C and DNA amount 2N. What will be the chromosome content and amount of DNA in this cell at telophase of mitosis?
1. 2C and 2N
2. 2C and 4N
3. 4C and 2N
4. 4C and 4N

19.

What will be common to all animals given in the box?

Ornithirhynchus, Struthio, Neophron, Pteropus, Macropus, Aptenodytes

1. Oviparity
2. Indirect development
3. Homeothermy
4. Skin with large number of glands

20.

At which stage of the cell cycle is the cell shown in the given diagram?

1. G₁	2. S
3. G₂	4. M

21.

Which term includes all others given below in the options?
1. Phellogen
2. Phellem
3. Periderm
4. Phelloderm

22.

Which of the following pairs are correctly matched?
I. Epipetalous stamen: Brinjal
II. Diadelphous stamen: China rose
III. Syncarpous ovary: Mustard
IV. Basal placentation: Sunflower

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

23.

Identify the incorrect comparison between C₃ and C₄ photosynthetic plants:

	Characteristic	C₃ plants	C₄ plants
1.	Chloroplasts	One type [only granal]	Two types [granal and agranal]
2.	Photorespiration	High	Negligible
3.	First CO₂ fixation product	3-PGA	OAA
4.	Carboxylase enzyme	Only RuBisCO	Only PEPcase

24.

If the centromere is located close to an end of a chromosome, the chromosome is said to be:

1.	Metacentric	2.	Sub-metacentric
3.	Acrocentric	4.	Telocentric

25.

Match each item in COLUMN I [Protist] with one in COLUMN II [Characteristic] and select your answer from the codes given:

	COLUMN I		COLUMN II
A.	Chrysophytes	a.	Pellicle
B.	Dinoflagellates	b.	Plasmodium
C.	Euglenoids	c.	Red tides
D.	Slime moulds	d.	Chief producers in oceans

Codes
A B C D
1. d c a b
2. d c b a
3. c d a b
4. c d b a

26.

Match the parts of the nephron in Column I with function/feature in Column II and select the answer from the codes given:

	COLUMN I		COLUMN II
A.	PCT	a.	Maximum reabsorption of water and electrolytes
B.	Loop of Henle - descending limb	b.	Permeable to water but almost impermeable to electrolytes
C.	Loop of Henle - ascending limb	c.	Impermeable to water but permeable to electrolytes
D.	DCT	d.	Conditional reabsorption of Na⁺ and water

Codes

	A	B	C	D
1.	a	b	c	d
2.	b	a	d	c
3.	a	b	d	c
4.	b	a	d	c

27.

You discover a new fungus. On careful examination you find that the mycelium is septate and branched, they reproduce asexually by conidia and you cannot identify any sexual stage in its life cycle. To which fungal class would you place this fungus?

1. Phycomycetes	2. Ascomycetes
3. Basidiomycetes	4. Deuteromycetes

28.

A secondary metabolite and an alkaloid that is used as a powerful analgesic in certain very painful clinical conditions is:
1. Vinblastin
2. Abrin
3. Concanavalin A
4. Morphine

29.

Nitrogen fixing nodules on the roots of actinorhhizal [non-leguminous] plants is produced during biological nitrogen fixation by:
1. Rhizobium
2. Rhodospirillum
3. Frankia
4. Anabaena

30.

Consider the given statements:
I. A homosporous life history occurs in nearly all bryophytes and in most pteridophytes.
II. A heterosporous life history occurs in some pteridophytes and in all seed plants.
III. Heterosporous pteridophytes, unlike their homosporous counterparts, lack archegonia, antheridia, and motile flagellate sperm.
IV. The seed plants completely lack antheridia.
The correct statements include:
1. Only I, II and III
2. Only I, II and IV
3. Only II, III and IV
4. I, II, III and IV

31.

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

32.

The malfunction of which of the following cells in gastric mucosa can lead to the development of pernicious anemia?
1. Parietal cells
2. Chief cells
3. G cells
4. Enterochromaffin like cells

33.

Match the parts of the human brain in Column I with function in Column II and select the answer from the codes given:

	COLUMN I		COLUMN II
A.	Medulla oblongata	a.	Coordinating center for sensory and motor signaling
B.	Thalamus	b.	Regulation of gastric secretions
C.	Hypothalamus	c.	Thermoregulation and osmoregulation
D.	Hippocampus	d.	Consolidation of short term memory into long term memory

Codes

	A	B	C	D
1.	a	b	c	d
2.	b	a	d	c
3.	a	b	d	c
4.	b	a	c	d

34.

All the following are modifications of leaves except:
1. Tendrils in Pea
2. Spine in Opuntia
3. Phylloclade in Australian Acacia
4. Pitcher in Nepenthes

35.

Which of the following will not be true for members of Rhodophyceae?

1.	Major pigments	Chlorophyll a, d, phycoerythrin
2.	Stored food	Floridean starch
3.	Cell wall	Cellulose and algin
4.	Flagellar number and insertions	Absent

36.

Identify the incorrect statement:
1. Neutrophils and monocytes are main phagocytic cells
2. Eosinophils and basophils are involved in allergic reactions
3. B and T lymphocytes are responsible for adaptive [acquired] immunity
4. Neutrophils are the commonest and eosinophils are the rarest WBCs

37.

The floral diagram shown in the given figure can represent the flowers of:

1. Sun hemp
2. Mustard
3. Belladonna
4. Tulip

38.

How many molecules of ATP are directly synthesized in the glycolysis pathway from one glucose molecule?

1.	2	2.	4
3.	6	4.	10

39.

Which of the following statements are correct?
I. Most gymnosperms lack vessels in their xylem
II. Most gymnosperms lack sieve cells and albuminous cells
III. Most monocotyledonous plants lack phloem parenchyma
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III

40.

The movement of water through the root layers is ultimately symplastic in the:

1. Outer cortex	2. Endodermis
3. Pericycle	4. Xylem

41.

Identify the plant growth regulator that is not correctly matched to its chemical nature in the following given options:

	PGR	Chemical nature
1.	Ethylene	Gaseous
2.	Adenine derivatives	Kinetin
3.	Indole compounds	Auxins
4.	Terpenes	Abscisic acid

42.

Match each item in Column I with one in Column II and select the correct answer from the codes given below:

	COLUMN I		COLUMN II
A.	Tonoplast	a.	Vacuole
B.	Acid hydrolases	b.	Lysosome
C.	rRNA synthesis	c.	Nucleolus
D.	Calcium pectate	d.	Middle lamella of plant cell wall

Codes
A B C D
1. a b c d
2. b a d c
3. a b d c
4. b a c d

43.

Which gastrointestinal hormone acts on the exocrine pancreas and stimulates secretion of water and bicarbonate ions?

1. Gastrin	2. Secretin
3. Cholecystokinin	4. Gastric inhibitory peptide

44.

Macromolecules and polymers synthesized by ‘dehydration synthesis’ include all the following except:

1.	Fats	2.	Carbohydrates
3.	Proteins	4.	Nucleic acids

45.

Find the correct match of the position of floral parts on thalamus of the given flower:

1. I: Hypogynous; II: Perigynous; III: Epigynous
2. I: Epigynous; II: Perigynous; III: Hypogynous
3. I: Hypogynous; II: Epigynous; III: Perigynous
4. I: Perigynous; II: Hypogynous; III: Epigynous

46.

An organelle is seen to possess a single circular chromosome DNA molecule, a few RNA molecules, 70s ribosomes and divides by fission. This organelle can be either:
1. Endoplasmic reticulum or Golgi apparatus
2. Mitochondria or Chloroplast
3. Endoplasmic reticulum or Mitochondria
4. Golgi apparatus or Chloroplast

47.

In the seeds of cereals, the outer covering of endosperm separates the embryo by a proteinaceous layer called as:

1.	Aleurone	2.	Perisperm
3.	Scutellum	4.	Replum

48.

Which of the following does not occur during meiosis?
1. Pairing of homologous chromosomes
2. Exchange of segments between non sister chromatids of homologous chromosomes
3. DNA replication in interkinesis
4. Reduction in chromosome number

49.

Match the feature [Column I]with phylum [Column II] and select the correct answer from the codes given:

	COLUMN I		COLUMN II
A.	Water transport canal system	a.	Echinodermata
B.	Water vascular system	b.	Porifera
C.	Metagenesis	c.	Annelida
D.	Metamerism	d.	Cnidaria

Codes

	A	B	C	D
1.	a	b	c	d
2.	b	a	d	c
3.	a	b	d	c
4.	b	a	c	d

50.

The following diagram shows the section of a certain organelle. The correct function of this organelle will be:

1. Locomotion in bacterial cell
2. Locomotion in eukaryotic cell
3. Formation of spindle in plant cells
4. Formation of spindle in animal cells

51.

Which of the following will bring about inhalation in human beings?
I. Contraction of diaphragm
II. Contraction of internal intercostals
III. Contraction of external intercostals

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

52.

In the cohesion-tension-transpiration pull model, the upward pull of water is transmitted to other water molecules by cohesion which is caused by:

1. Hydrogen bonds	2. Hydrophilic cell walls
3. Turgor pressure	4. Osmosis

53.

In the given diagram of human eye showing retina, the parts labeled as A and B have high visual acquity and they respectively are called as:

1. Blind spot and macula lutea
2. Macula lutea and fovea centralis
3. Fovea centralis and macula lutea
4. Macula lutea and blind spot

54.

The activities of the human heart can be regulated through the autonomic nervous system by a special neural center located in:

1.	Medulla oblongata	2.	Hypothalamus
3.	Mid brain	4.	Cerebrum

55.

Which of the following is not true regarding comparison between the gymnosperms Pinus and Cycas?

	Character	*Pinus*	*Cycas*
1.	Root symbiotic association	Mycorrhiza	Cyanobacteria
2.	Stem	Branched	Unbranched
3.	Reproductive parts	Dioecious	Monoecious
4.	Scale leaves	Fall off as branches mature	Persistent, protective

56.

Which mouth part of cockroach acts as a tongue?
1. Labrum
2. Labium
3. Hypopharynx
4. Maxilla

57.

The amino acid tryptophan is the precursor of:
1. Thyroxin
2. Melatonin
3. Nor-adrenaline
4. Prolactin

58.

Identify the incorrectly matched pair:

1.	Hypersecretion of growth hormone in adults	Gigantism
2.	Hyposecretion of adrenal cortex hormones	Addison’s disease
3.	Hyposecretion of ADH	Diabetes insipidus
4.	Hypersecretion of iodothyronines	Graves disease

59.

The gross calorific value for carbohydrates is:
1. 4.0 kcal/g
2. 4.1 kcal/g
3. 5.65 kcal/g
4. 9.45 kcal/g

60.

Which of the following clinical feature is unlikely to be seen in hypothyroidism?
1. A decrease in basal metabolic rate
2. Mental retardation and growth retardation of baby if pregnant female is affected
3. Exopthalmic goiter
4. Irregular menstrual cycles in adult women

61.

Identify the incorrectly matched pair:

1.	Ureotelism	Marine fishes
2.	Ammonotelism	Many bony fishes
3.	Protonephridia	Amphioxus
4.	Prawn	Malpighian tubules

62.

In cyclic photophosphorylation, the primary electron acceptor is:
1. Iron-sulfur protein
2. Ferredoxin
3. Plastocyanin
4. Pheophytin

63.

The electron transport system [ETS] in mitochondria is present in:
1. The outer membrane
2. The inner membrane
3. Inter-membrane space
4. Matrix

64.

Identify the incorrect statement:

1.	At the root tip, hairs are found in the region of maturation
2.	Prop roots are the supporting roots seen in maize and sugarcane
3.	Respiratory roots, pneumatophores are seen in Rhizophora growing in swampy areas
4.	Adventitious roots in sweet potato get swollen and store food

65.

Identify the incorrectly matched pair:

	Location in human body	Type of epithelium
1.	Trachea	Pseudostratified columnar ciliated
2.	Urinary bladder	Transitional
3.	Proximal convoluted tubule	Simple columnar brush bordered
4.	Non hairy skin (as in palm)	Stratified squamous keratinized

66.

If we plot the parameter of growth against time for a living organism growing in a natural environment, the shaped of the curve is expected to be:

1.	Linear	2.	Rectangular hyperbola
3.	Sigmoid	4.	Bell shaped

67.

All the following are examples of secondary or lateral meristems except:
1. Fascicular vascular cambium
2. Interfascicular cambium
3. Cork cambium
4. Intercalary meristem

68.

Consider the diagram of the human heart with various parts labeled as numbers. All statements given will be correct except:

1. Simultaneous closure of 3 and 6 produces first heart sound
2. Simultaneous closure of 2 and 8 produces second heart sound
3. 5 pumps more blood than 4 as it has thicker musculature
4. Both 1 and 7 receive venous blood

69.

Consider the given two statements:
I. Starch turns into an intense "blue-black" colour upon addition of aqueous solutions of the triiodide anion
II. Starch does not form secondary helical structures
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 but II is incorrect
4. Both I and II are incorrect

70.

Which of the following is not a correct difference between members of Chondrichthyes and Osteichthyes?

	Feature	Chondrichthyes	Osteichthyes
1.	Operculum	Absent	Present
2.	Scales	Placoid	Cycloid/Ctenoid
3.	Swim bladder	Absent	Present
4.	Mouth	Mostly terminal	Located ventrally

71.

The following diagram may represent the life cycle of:

1. Fucus	2. Ectocarpus
3. Polysiphonia	4. Spirogyra

72.

All the following are examples of competitive enzyme inhibition except:
1. Sulfa drugs used as antibacterial agents
2. Ethyl alcohol used in methyl alcohol poisoning
3. Malonate inhibiting succinic dehydrogenase enzyme
4. Glucose 6 phosphate inhibiting hexokinase in brain

73.

Which of the following is not a macronutrient required by plants?
1. Sulfur
2. Potassium
3. Calcium
4. Iron

74.

Each time the sodium potassium pump functions, it pumps:
1. 3 Na⁺ ions to the inside and 2 K⁺ ions to the outside
2. 3 Na⁺ ions to the outside and 2 K⁺ ions to the inside
3. 2 Na⁺ ions to the inside and 3 K⁺ ions to the outside
4. 2 Na⁺ ions to the outside and 3 K⁺ ions to the inside

75.

The type of synovial joint seen at the carpal and the metacarpal of thumb is called as:
1. Gliding or plane joint
2. Pivot joint
3. Saddle joint
4. Condyloid joint

76.

The given graph shows the pulmonary volumes of a healthy man recorded on spirometer.

Which of the following would be correct?
1. D can be exhaled only after maximum expiratory efforts
2. The value of B will be different for inhalation and exhalation
3. The amount of air remaining in lungs after a normal exhalation is C + D
4. Total lung capacity cannot be calculated from this graph as it includes residual volume

77.

All the following are favorable for the formation of oxyhemoglobin at the lungs except:

1.	High PO₂	2.	Low PCO₂
3.	Low temperature	4.	Low pH

78.

Arrange the following events in the correct chronological order of their occurrence [earliest to last] during hearing of a sound in humans:
I. Foot plate of stapes transmits vibrations to perilymph in scala vestibuli
II. Nerve impulse generated in associated afferent neurons
III. Ripple induced in basilar membrane
IV. Hair cells bend against tectorial membrane
V. Recognition by the auditory cortex

1. I – II – IV – III – V	2. I – III – II – V – V
3. I – III – IV – II – V	4. III – I – IV – V – II

79.

In the given diagram of areolar connective tissue, the structure responsible for the release of mediators of inflammation is shown by the letter:

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

80.

Mesosomes, extensions of plasma membrane into the cell, help bacterium in all the following processes except:

1.	Photosynthesis in cyanobacteria	2.	Respiration
3.	DNA replication	4.	Cell wall formation

81.

Which of the following hormones does not act on its target cells through a second messenger?
1. Adrenocorticotrophic hormone
2. Aldosterone
3. Thyrocalcitonin
4. Atrial natriuretic factor

82.

Match the plants in Column I with the description of anatomy of vascular bundles in them in Column II and select the correct option from the codes given:

Column I	Column II
A. Dicot stem	a. Collateral, closed and scattered in ground tissue
B. Monocot stem	b. Conjoint, collateral endarch and open
C. Dicot root	c. Radial, exarch and polyarch [usually more than 6]
D. Monocot root	d. Radial, exarch and 2 to 6 in number

Codes

	A	B	C	D
1.	a	b	c	d
2.	b	a	d	c
3.	a	b	d	c
4.	b	a	c	d

83.

Pulmonary fibrosis is a characteristic feature of all cases of:

1.	Occupational lung diseases	2.	Bronchial asthma
3.	Emphysema	4.	Pneumonia

84.

In animal cells, lipid-like steroidal hormones are synthesized in:
1. Smooth Endoplasmic reticulum
2. Rough Endoplasmic reticulum
3. Golgi apparatus
4. Mitochondria

85.

Identify the incorrectly matched pair:

	Biomolecule	Function
1.		Main structural component of cell membranes
2.		Precursor of steroidal hormones in animals
3.		Structural component of DNA
4.		Synthesis of iodothyronines

86.

The deficiency symptoms of iron, magnesium and calcium in plants may actually be the symptoms of toxicity of:
1. Molybdenum
2. Manganese
3. Boron
4. Zinc

87.

Identify the incorrectly matched pair:

	Stage of Prophase-I	Event
1.	Zygotene	Synapsis
2.	Pachytene	Crossing over
3.	Diplotene	Appearance of chiasmata
4.	Diakinesis	Centralization of chiasmata

88.

When the kidneys are eliminating a concentrated urine, NaCl is returned to the medullary interstitium by:
1. Thick segment of ascending limb of loop of Henle
2. Thin segment of ascending limb of loop of Henle
3. Ascending limb of the vasa recta
4. Descending limb of the vasa recta

89.

If the chloroplasts are illuminated by sunlight, where do you expect to find the pH to be lowest?
1. Stroma
2. Intermembrane space [between outer and inner membranes]
3. Space enclosed by thylakoid membranes
4. Cytosol

90.

The following diagram shows the alimentary canal of Periplaneta americana. Identify the incorrectly matched pair:

1.	A	Storing the food
2.	B	Absorption of food
3.	C	Secretion of digestive enzymes
4.	D	Excretion and osmoregulation

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