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Questions:

Multiple Choice Question

30 x 1 = 30

Select the correctly matched one

A) Human urine	i) Auxin –B
B) Corn gram oil	ii) GA₃
C) Fungus	iii) Abscisic acid II
D) Herring fish sperm	iv) Kinitin
E) Unripe maize grains	v) Auxin A
F) Young cotton bolls	vi) Zeatin

(a)

A	B	C	D	E	F
iii	iv	v	vi	i	ii

(b)

A	B	C	D	E	F
v	i	ii	iv	vi	iii

(c)

A	B	C	D	E	F
iii	v	vi	i	ii	iv

(d)

A	B	C	D	E	F
ii	iii	v	vi	iv	i

The compound which links glycolysis and Krebs cycle is _______.

(a)

Succinic acid

(b)

Pyruvic acid

(c)

Acetyl CoA

(d)

Citric acid

Identify true statement regarding light reaction of photosynthesis.

(a)

Splitting of water molecule is associate with PS I.

(b)

PS I and PS II involved in the formation of NADPH + H⁺

(c)

The reaction center of PS I is Chlorophyll a with absorption peak at 680 nm.

(d)

The reaction center of PS II is Chlorophyll a with absorption peak at 700 nm.

If a plant is provided with all mineral nutrients but, Mn concentration is increased, what will be the deficiency?

(a)

Mn prevent the uptake of Fe, Mg but not Ca

(b)

Mn increase the uptake of Fe, Mg and Ca

(c)

Only increase the uptake of Ca

(d)

Prevent the uptake Fe, Mg, and Ca

In a fully turgid cell _____.

(a)

DPD = 10 atm; OP = 5 atm; TP = 10 atm

(b)

DPD = 0 atm; OP = 10 atm; TP = 10 atm

(c)

DPD = 0 atm; OP = 5 atm; TP = 10 atm

(d)

DPD = 20 atm; OP = 20 atm; TP = 10 atm

Consider the following statements:
In spring season vascular cambium
i. Is less active
ii. Produces a large number of xylary elements
iii. Forms vessels with wide cavities of these,

(a)

(i) is correct but (ii) and (iii) are not correct

(b)

(i) is not correct but (ii) and (iii) are correct

(c)

(i) and (ii) are correct but (iii) is not correct

(d)

(i) and (ii) are not correct but (iii) is correct.

In Gymnosperms, the activity of sieve cells are controlled by _____.

(a)

Nearby sieve tube members

(b)

Phloem parenchyma cells

(c)

Nucleus of companion cells

(d)

Nucleus of albuminous cells

All of the following are associated with the myelin sheath except.

(a)

Faster conduction of nerve impulses

(b)

Nodes of Ranvier forming gaps along the axon

(c)

Increased energy output for nerve impulse conduction

(d)

Saltatory conduction of action potential

Examine the diagram of the two cell types A and B given below and select the correct option.

(a)

Cell-A is the rod cell found evenly all over retina

(b)

Cell-A is the cone cell more concentrated in the fovea centralis

(c)

Cell-B is concerned with colour vision in bright light

(d)

Cell-A is sensitive to bright light intensities

10.

Which of the given option shows all wrong statements for thyroid gland.
Statement
(i) It inhibits process of RBC formation
(ii) It helps in maintenance of water and electrolytes
(iii) Its more secretion can reduce blood pressure
(iv) It Stimulates osteoblast

(a)

(i) and (ii)

(b)

(iii) and (iv)

(c)

(i) and (iv)

(d)

(i) and (iii)

11.

Which one of the following statement is correct

(a)

Calcitonin and thymosin are thyroid hormones

(b)

Pepsin and prolactin are secreted in stomach

(c)

Secretin and rhodopsin are polypeptide hormones

(d)

Cortisol and aldosterone are steroid hormones

12.

Inland fisheries are _____.

(a)

deep sea fishing

(b)

capturing fishes from sea coast

(c)

Raising and capturing fishes in fresh water

(d)

oil extraction from fish

13.

The protein present in the thick filament is _____.

(a)

myosin

(b)

actin

(c)

pectin

(d)

leucine

14.

The Tidal Volume of a normal person is ______.

(a)

800 mL

(b)

1200 mL

(c)

500 mL

(d)

1100 - 1200 mL

15.

The end product of Ornithine cycle is _____.

(a)

carbon dioxide

(b)

uric acid

(c)

urea

(d)

ammonia

16.

Absorption of glycerol, fatty acids and monoglycerides takes place by ______.

(a)

Lymph vessels within villi

(b)

Walls of stomach

(c)

Colon

(d)

Capillaries within villi

17.

The sphincter of Oddi guards _____.

(a)

Hepatopancreatic duct

(b)

Common bile duct

(c)

Pancreatic duct

(d)

Cystic duct

18.

Dub sound of heart is caused by _______.

(a)

Closure of atrio-ventricular valves

(b)

Opening of semi-lunar valves

(c)

Closure of semi-lunar valves

(d)

Opening of atrio-ventricular valves

19.

Buccopharyngeal respiration in frog ______.

(a)

is increased when nostrils are closed

(b)

Stops when there is pulmonary respiration

(c)

is increased when it is catching fly

(d)

stops when mouth is opened.

20.

The main function of the cuboidal epithelium is ______.

(a)

Protection

(b)

Secretion

(c)

Absorption

(d)

Both (b) and (c)

21.

Sea anemone belongs to phylum ________.

(a)

Protozoa

(b)

Porifera

(c)

Coelenterata

(d)

Echinodermata

22.

What taxonomic aid gives comprehensive information about a taxon?

(a)

Taxonomic Key

(b)

Herbarium

(c)

Flora

(d)

Monograph

23.

Curcuma amada, Curcuma domestica, Asparagus, Maranta are example of __________

(a)

Tuberous root

(b)

Beaded root

(c)

Moniliform root

(d)

Nodulose root

24.

In an inflorescence where flowers are borne laterally in an acropetal succession the position of the youngest floral bud shall be ______.

(a)

Proximal

(b)

Distal

(c)

Intercalary

(d)

Anywhere

25.

Identify the Archaebacterium.

(a)

Acetobacter

(b)

Erwinia

(c)

Treponema

(d)

Methanobacterium

26.

Proteins perform many physiological functions. For example some functions as enzymes. One of the following represents an additional function that some proteins discharge:

(a)

Antibiotics

(b)

Pigment conferring colour to skin

(c)

Pigments making colours of flowers

(d)

Hormones

27.

Keeping in view the fluid mosaic model for the structure of cell membrane which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other.

(a)

Neither lipid nor proteins can flip-flop

(b)

Both lipid and proteins can flip flop

(c)

While lipids can rarely flip-flop proteins cannot

(d)

While proteins can flip-flop lipids cannot

28.

The taxonomy which involves the similarities & dissimilarities among the immune system of different taxa is termed as ______.

(a)

Chemotaxonomy

(b)

Molecular systematics

(c)

Serotaxonomy

(d)

Numerical taxonomy

29.

In meiosis crossing over is initiated at ______.

(a)

Diplotene

(b)

Leptotene

(c)

Pachytene

(d)

Zygotene

30.

The haploid number of chromosome for an Angiosperm is 14, the number of chromosome in its endosperm would be

(a)

(b)

(c)

(d)

Generic 2

11 x 2 = 22

31.

What is Devernalization?

32.

What are enzymes involved in phosphorylation and dephosphorylation reactions in EMP pathways?

33.

Why is that in certain plants deficiency symptoms appear first in younger parts of the plants while in others, they do so in mature organs?

34.

Comment on homeostasis.

35.

What is the effect of aldosterone on kidneys and where is it produced?

36.

Which segment is the site of secretion and regulated reabsorption of ions and pH homeostasis?

37.

Digestive secretions are secreted only when needed Discuss.

38.

Name the visual units of the compound eyes of cockroach.

39.

Why mule is sterile in nature?

40.

State the protoplasm theory.

41.

Mention two characters shared by gymnosperms and angiosperms.

Generic 5

3 x 5 = 15

42.

Select the correct biological term
Lymphocytes, red cells, leucocytes, plasma, erythrocytes, white cells, haemoglobin, phagocyte, platelets, blood clot.
(a) Disc shaped cells which are concave on both sides.
(b) Most of these have a large, bilobed nucleus.
(c) Enable red cells to transport blood.
(d) The liquid part of the blood.
(e) Most of them move and change shape like an amoeba.
(f) Consists of water and important dissolved substances.
(g) Destroyed in the liver and spleen after circulating in the blood for four months.
(h) The substances which gives red cells their colour .
(i) Another name for red blood cells
(j) Blood that has been changed to a jelly
(k) A word that means cell eater.
(l) Cells without nucleus .
(m) White cells made in the lymphatic tissue.
(n) Blocks wound and prevent excessive bleeding.
(o) Fragment of cells which are made in the bone marrow.
(p) Another name for white blood cells.
(q) Slowly releases oxygen to blood cells.
(r) Their function is to help blood clot in wounds.

43.

Explain the different methods of asexual reproduction in fungi.

44.

Draw the ultra structure of plant cell.

Generic 3

10 x 3 = 30

45.

What is plasticity?

46.

Write the role of nitrogenase enzyme in nitrogen fixation?

47.

Label the parts of the neuron.

48.

Mention the advantages of MOET.

49.

How does an isometric contraction take place?

50.

Identify the biological term
Excretion, glomerulus, urinary bladder, glomerular filtrate, ureters,urine, Bowman’s capsule, urinary system, reabsorption, micturition, osmosis, proteins.
a. A liquid which gathers in the bladder.
b. Produced when blood is filtered in a Bowman’s capsule.
c. Temporary storage of urine.
d. A ball of intertwined capillaries.
e. Removal of unwanted substances from the body.
f. Each contains a glomerulus.
g. Carry urine from the kidneys to the bladder.
h. Scientific term for urination.
i. Regulation of water and dissolved substances in blood and tissue fluid.
j. Consists of the kidneys, ureters and bladder.
k. Removal of useful substances from glomerular filtrate.
l. What solute the blood contains that are not present in the glomerular filtrate?

51.

What are the heart sounds? When and how are these sounds produced?

52.

Differentiate between elastic fibres and elastic connective tissue.

53.

List the unique features of bird's endoskeleton.

54.

Differentiate between aggregate fruit with multiple fruit.

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Answers Key:

Multiple Choice Question

30 x 1 = 30

(b)

A B C D E F

v i ii iv vi iii

(b)
PS I and PS II involved in the formation of NADPH + H⁺

(a)
Mn prevent the uptake of Fe, Mg but not Ca

(b)
DPD = 0 atm; OP = 10 atm; TP = 10 atm

(b)
(i) is not correct but (ii) and (iii) are correct

10.

(d)
(i) and (iii)

11.

(d)
Cortisol and aldosterone are steroid hormones

12.

13.

(a)
myosin

14.

15.

16.

(a)
Lymph vessels within villi

17.

(a)
Hepatopancreatic duct

18.

19.

(d)
stops when mouth is opened.

20.

(d)
Both (b) and (c)

21.

22.

(a)
Taxonomic Key

23.

(d)
Nodulose root

24.

(a)
Proximal

25.

(d)
Methanobacterium

26.

(d)
Hormones

27.

28.

29.

30.

Generic 2

11 x 2 = 22

31.

Reversal of the effect of vernalization is called devernalization

32.

(i) Phosphorylation - Hexokinase, Phospho fructokinase and glyceraldehyde - 3 phosphate dehydrogenase
(ii) De-Phosphorylation - Phospho glycerate Kinase and Pyruvate Kinase

33.

This is due to the immobile nature of minerals, Eg: Calcium.

34.

(i) Hormones coordinate different physical, physiological, mental activities and maintain homeostasis.
(ii) Maintenance of constant internal environment of the body by the different coordinating system.

35.

Aldosterone maintains renal blood flow to the kidneys. It is produced as medullary adrenal hormone in the adrenal gland of kidney.

36.

Distal convoluted tubule (DCT of nephron).

37.

(i) Ingested food is to be completely digested.
(ii) Digestive medium should become normal conditions.
(iii) Maximum utilization of digestive secretions is to be performed for the digestion of food.
(iv) The stimulation of digestive hormonal secretions is to be regulated.

38.

(i) Ommatidia are the visual units of compound eyes of cockroach.
(ii) Each ommatidium is functional as an eye unit.
(iii) Photoreceptors are dorsally found.
(iv) Each compound eye consists of 2000 simple eyes called ommatidia.
(v) All the visual images captured by ommatidia are made into a single coherent picture by supra oesophageal ganglion (brain).

39.

Mule is sterile and cannot yield its offsprings because it is born from the cross made between different species like Male Donkey and Female Horse.

40.

(i) Corti first observed protoplasm Felix Dujardin (1835) observed a living juice in animal cell and called it "Sarcode". Purkinje (1839) coined the term protoplasm for sap inside a plant cell. Hugo Van Mohl (1846) indicated importance of protoplasm.
(ii) Max Schultze (1861) established similarity between Protoplasm and Sarcode and O. Hertwig (1892) proposed a theory which later on called 'protoplasm theory' Huxley (1868) proposed protoplasm as a "physical basis of life".

41.

(i) Presence of well organised plant body which is differentiated into roots, stem and leaves.
(ii) Presence of eustele.

Generic 5

3 x 5 = 15

42.

(a) Erythrocytes.
(b) Leucocytes (Not specific option)
(c) Question framed wrongly
(d) Plasma
(e) Phagocyte
(t) Plasma
(g) Erythrocyte
(h) Haemoglobin
(i) Erythrocyte
(j) Blood clot
(k) Phagocyte
(I) Erythrocytes / Platelets
(m) Leucocytes
(n) Blood clot
(o) Red Cells
(p) Leucocytes
(q) Haemoglobin
(r) Platelets

43.

Asexual reproduction in Fungi:

1. Zoospores : They are flagellate structures produced in zoosporangia. Eg : Chytrids.
2. Conidia : The spores produced on conidiophores. Eg: Aspergillus.
3. Oldia/Thallospores : The hypha divide and develop in to spores called oidia. Eg : Erysiphe.
4. Fission : The vegetative cell divide into 2 daughter cells. Eg: Schizosaccharomyces- Yeast.
5. Budding: A small outgrowth is developed on parent cell, which gets detached and become independent. Eg :Saccharomyces - Yeast.
6. Chlamydospore: Thick walled resting spores are called chlamydospores Eg: Fusarium.

44.

Ultra Structure of Plant Cell

Generic 3

10 x 3 = 30

45.

1) Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called plasticity.
2) Example: Heterophylly in cotton and coriander. In such plants, the leaves of the juvenile plant are different in shape from those in mature plants.
3) On the other hand, the difference in shapes of leaves produced in air and those produced in water in buttercup also represent the heterophyllous development due to the environment. This phenomenon ofheterophylly is an example of plasticity.

46.

(i) Nitrogen fixation process requires Nitrogenase enzyme complex, Minerals (Mo, Fe and S), anaerobic condition, ATP, electron and glucose 6 phosphate as H⁺ donor.
(ii) Nitrogenase enzyme is active only in anaerobic condition.
(iii) To create this anaerobic condition a pigment known as leghaemoglobin is synthesized in the nodules which acts as oxygen scavenger and removes the oxygen.

47.

A- Nucleus with nucleolus'
B- Myelin sheath
C- Dendrites
D- Nucleus
E- Schwann cell
F- Node of Ranvier

48.

MOET-Multiple Ovulation embryo transfer technology:
1. Advantage of this technology is to produce high milk yielding females and high-quality meat yielding bulls in a short time.
2. It is applicable in animal husbandry.
3. It is a method of propagation of animals with desirable traits.
4. This method can be applied when the success rate of cross over even in low cost.

49.

Isometric contraction (iso- same, metric-distance):
1. In isometric contraction the length of the muscle does not change but the tension of the muscle changes.
2. Here, the force produced is changed.
3. Example: Pushing against a wall, holding a heavy bag.

50.

(a) Urine
(b) Glomerular filtrate
(c) Urinary bladder
(d) afferent and efferent arterioles and venules of renel artery and renel vein.
(e) Excretion
(f) Bowman's capsule
(g) Ureters
(h) Micturition
(i) Balance of electrolytes minerals and organics
(j) excretory system
(k) micturition
(l) glucose, amino acid and liquids

51.

There are usually two heart sounds they are
(i) 'lub' sound: It is the 1^st sound produced by the closure of atrio ventricular valves (both tricuspid and bicuspid valves).
(ii) 'dub' sound: It is the 2^nd sound produced by the closure of semilunar valves (both pulmonary aortic valves).
(iii) A 3^rd abnormal sound may be produced with vibrations as "murmuring" under the dis-order of heart.

52.

S.NO. Elastic fibres Elastic connective tissue (1) Packed along with fibroblasts Packed with high proportion of elastic fibres (2) It does not allow the recoil of tissues following stretching It allows the recoil of tissues following
stretching (3) It does not maintain the pulsatile
flow of blood through the arteries
and the passive recoil of lungs
following inspiration It maintains the pulsatile flow of blood through the arteries and the passive recoil of lungs following inspiration

53.

(i) Feathered vertebrates like birds have endoskeleton.
(ii) Flying birds have air filled hollow bones due to extension of air sacs of lungs. These bones are called as pneumatic bones.
(iii) In flying birds bones are very much demineralised.
(iv) In flying birds striated flight muscles well attached with carina of sternum.
(v) While in flightless birds bones are hard, compact and not filled by air but striated muscles are well attached to bones for leading, running and walking.

54.

S.No.	Aggregate fruit	Multiple fruit
1	Aggregate fruits develop from a single fl ower having an apocarpous pistil. each of the free carpel develops into a simple fruitlet. A collection of simple fruitlets makes an Aggregate fruit. An individual ovary develops into a drupe, achene, follicle or berry	A Multiple or composite fruit develops from the whole infl orescence along with its peduncle on which they are borne
2	Eg: Polyalthia	Eg: Pineapple