Which one of the following statement about virus is correct?

(a)

Possess their own metabolic system

(b)

They are facultative parasites

(c)

They contain DNA or RNA

(d)

Enzymes are present

The correct statement regarding Blue green algae is ______.

(a)

lack of motile structures

(b)

presence of cellulose in cell wall

(c)

absence of mucilage around the thallus

(d)

presence of floridean starch

The base plate of T₄ phage has ______________ tail fibres.

(a)

5

(b)

4

(c)

6

(d)

8

Study of fungus is called as __________ .

(a)

phycology

(b)

mycology

(c)

algology

(d)

biology

Which of the plant group has gametophyte as a dominant phase?

(a)

Pteridophytes

(b)

Bryophytes

(c)

Gymnosperm

(d)

Angiosperm

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

(a)

7

(b)

14

(c)

42

(d)

28

Which of the following is a living fossil?

(a)

Spirogyra

(b)

Moss

(c)

Cycas

(d)

Saccharomyces

Which one is used as bio - fertilizer?

(a)

Funaria

(b)

Marchantia

(c)

Azolla

(d)

Anthoceros

Roots are ______.

(a)

Descending, negatively geotrophic, positively phototropic

(b)

Descending, positively geotrophic, negatively phototrophic

(c)

Ascending, positively geotrophic, negatively phototrophic

(d)

Ascending, negatively geotrophic, positively phototrophic

Bryophyllum and Dioscorea are example for ______.

(a)

Foliar bud, apical bud

(b)

Foliar bud, cauline bud

(c)

Cauline bud, apical bud

(d)

Cauline bud, foliar bud

Match

1	Radical buds	i	Agave
2	Foliar bud	ii	Millingtonia
3	Cauline bud	iii	Begonia
		iv	Solanum

(a)

1 - iii, 2 - iv, 3 - i

(b)

1 - iii, 2 - i, 3 - ii

(c)

1 - ii, 2 - i, 3 - iv

(d)

1 - ii, 2 - iii, 3 - i

Plants grow on land is called ________.

(a)

Aquatic

(b)

Amphibian

(c)

Terrestrial

(d)

Both a & b

Vexillary aestivation is characteristic of the family _____.

(a)

Fabaceae

(b)

Asteraceae

(c)

Solanaceae

(d)

Brassicaceae

Gynoecium with united carpels is termed as ______.

(a)

Apocarpous

(b)

Multicarpellary

(c)

Syncarpous

(d)

None of the above

A disk-shaped stigma is called _____________.

(a)

Lateral style

(b)

Discoid

(c)

capitate

(d)

Globose

They develop from mullcarpellary, syncarpous, superior ovary with hard ____________.

(a)

Achene

(b)

Cypsela

(c)

Caryopsis

(d)

Nut

Specimen derived from non-original collection serves as the nomenclature type, when original specimen is missing. It is known as ________ .

(a)

Holotype

(b)

Neotype

(c)

Isotype

(d)

Paratype

Phylogenetic classification is the most favoured classification because it reflects _______.

(a)

Comparative Anatomy

(b)

Number of flowers produced

(c)

Comparative cytology

(d)

Evolutionary relationships

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

Bentham and Hooker described ........... species.

(a)

90,205

(b)

97,305

(c)

98,304

(d)

97,205

_________outlined an artificial system of classification.

(a)

Father of Taxonomy

(b)

Carolus Linnaeus

(c)

Artificial system of classification

(d)

Natural system of classification

Plants with united petals, which are either partially or completely fused in ________.

(a)

Dicotyledonae

(b)

Polypetalae

(c)

Gamopetalae

(d)

Monochlamydeae

The two subunits of ribosomes remain united at critical ion level of _______.

(a)

Magnesium

(b)

Calcium

(c)

Sodium

(d)

Ferrous

Many cells function properly and divide mitotically even though they do not have.

(a)

plasma membrane

(b)

cytoskeleton

(c)

mitochondria

(d)

plastids

Match the columns and identify the correct option:

	Column I		Column II
A	Thylakoids	1.	Disc-shaped sacs in Golgi apparatus
B.	Cristae	2.	Condensed structure of DNA
C.	Cisternae	3.	Flat membranous sacs in stroma
D	Chromatin	4.	Infoldings in mitochondria

(a)

A	B	C	D
(iii)	(iv)	(ii)	(i)

(b)

A	B	C	D
(iv)	(iii)	(i)	(ii)

(c)

A	B	C	D
(iii)	(iv)	(i)	(ii)

(d)

A	B	C	D
(iii)	(i)	(iv)	(ii)

Nucleosome contains______ histone subunits

(a)

6

(b)

8

(c)

4

(d)

10

Which among the following is NOT an exception to cell theory?

(a)

Viruses

(b)

Viroids

(c)

Prions

(d)

Fungi

Colchicine prevents the mitosis of the cells at which of the following stage ______.

(a)

Anaphase

(b)

Metaphase

(c)

Prophase

(d)

Interphase

The paring of homologous Chromosomes on meiosis is known as _____.

(a)

Bivalent

(b)

Synapsis

(c)

Disjunction

(d)

Synergids

_____________ occurs in shoot and root tips and other meristematic tissues of plants.

(a)

Amitosis

(b)

Mitosis

(c)

Closed Mitosis

(d)

Open Mitosis

Recombination of homologous chromosomes is completed by the end of the stage ___________ .

(a)

Leptotene

(b)

Zygotene

(c)

Pachytene

(d)

Diplotene

The most basic amino acid is

(a)

Arginine

(b)

Histidine

(c)

Glycine

(d)

Glutamine

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

_____________ help to increase the rate of reaction catalysed by enzymes.

(a)

Holoenzyme

(b)

Apoenzyme

(c)

Inorganic ions

(d)

Coenzymes

_____________ include simple sugars.

(a)

ribosomal RNA

(b)

Carbohydrates

(c)

Lipids

(d)

Nucleic acids

A group of organisms having similar traits of a rank is _______.

(a)

Species

(b)

Taxon

(c)

Genus

(d)

Family

Every unit of classification regardless of its rank is _____.

(a)

Taxon

(b)

Variety

(c)

Species

(d)

Strain

____________is the father of modern taxonomy and found of systematics.

(a)

Linnaeus

(b)

Aristotle

(c)

John Ray

(d)

Bauhin

The father of modem taxonomy is _________

(a)

John Ray

(b)

Huxley

(c)

Darwin

(d)

Carolus Linnaeus

Metameric segmentation is the main feature of ______.

(a)

Annelida

(b)

Echinodermata 

(c)

Arthropoda

(d)

Coelenterata

Which of the following is an egg laying mammal?

(a)

Delphinus

(b)

Macropus

(c)

Ornithorhynchus

(d)

Equus

Parthenogenesis can be seen in ____________

(a)

frog

(b)

honey bee

(c)

moth

(d)

all of these

Which of the following is not an insect?

(a)

Cockroach

(b)

Spider

(c)

Mosquito

(d)

bedbug

The main function of the cuboidal epithelium is ______.

(a)

Protection

(b)

Secretion

(c)

Absorption

(d)

Both (b) and (c)

Prevention of substances from leaking across the tissue is provided by ______.

(a)

Tight junction

(b)

Adhering junction

(c)

Gap junction

(d)

Elastic junction

Pick out the odd one:

(a)

Mucus

(b)

Saliva

(c)

Hormone

(d)

Milk

Groups of cells that are similar in structure and perform a common function are called ________

(a)

tissues

(b)

organs

(c)

cells

(d)

organ systems

Kidney of frog is _____.

(a)

Archinephros

(b)

Pronephros

(c)

Mesonephros

(d)

Metanephros

State whether the statement is true or false
To sustain themselves, earthworms must guide their way through the soil using their powerful muscles. They gather nutrients by ingesting organic matter and soil, absorbing what they need into their bodies.The two ends of the earthworm can equally ingest soil.

(a)

True

(b)

False

Which of the following is right?

(a)

Anal styles are present only in male cockroach.

(b)

Anal styles are present in both male and female cockroaches

(c)

Anal cerei are present in male cockroach only

(d)

Anal cerei are present in female cockroach only

The secretion of colleterial glands in cockroach is to produce __________

(a)

ova

(b)

sperms

(c)

pigments

(d)

oothoea

The sphincter of Oddi guards _____.

(a)

Hepatopancreatic duct

(b)

Common bile duct

(c)

Pancreatic duct

(d)

Cystic duct

Which of the following is not the function of liver?

(a)

Production of insulin

(b)

Detoxification

(c)

Storage of glycogen

(d)

Production of bile

Who is known as the Father of gastric physiology?

(a)

Aristotle

(b)

William Beaumont

(c)

Alexis

(d)

A.C Guyton and Hall

HCl is secreted by ____________

(a)

Zymogen cells

(b)

Kupffer's cells

(c)

Oxyntic cells

(d)

Mucous cells

Which of the following options best represents the enzyme composition of pancreatic juice ____________

(a)

Amylase, pepsin, trypsinogen, maltase

(b)

Peptidase, Amylase, pepsine, renine

(c)

Lipase, amylase, trypsinogen, procarboxypeptidase

(d)

Amylase peptidase, trypsinogen, rennin

Asthma is caused due to _____.

(a)

Inflammation of bronchus and bronchioles

(b)

Inflammation of bronchiole

(c)

Damage of diaphragm

(d)

Infection of lungs

Which of the following best describes the process of gas exchange in the lungs?

(a)

Air moves in and out of the alveoli during breathing.

(b)

Carbon dioxide diffuses from deoxygenated blood in capillaries into the alveolar air.

(c)

Oxygen and carbon dioxide diffuse down their concentration gradients between blood and alveolar air.

(d)

Oxygen diffuses from alveolar air into the deoxygenated blood.

The lungs are protected ventrally by _____________

(a)

vertebral column

(b)

sternum

(c)

ribs

(d)

diaphragm

Which of the following is caused by bacteria ___________

(a)

pneumonia

(b)

emphysema

(c)

silicosis

(d)

tuberculosis

Which one of the following plasma proteins is involved in the coagulation of blood?

(a)

Globulin

(b)

Fibrinogen

(c)

Albumin

(d)

Serum amylase

A patient's chart reveals that he has a cardiac output of 7500mL per minute and a stroke volume of 50 mL. What is his pulse rate (in beats/min)?

(a)

50

(b)

100

(c)

150

(d)

400

Cerebral infarction is called __________.

(a)

heart attack

(b)

hypertension

(c)

heart failure

(d)

stroke

The wall of which part of the heart is very thick?

(a)

Left atrium

(b)

Left ventricle

(c)

Right atrium

(d)

Right ventricle

If Henle's loop were absent from mammalian nephron, which one of the following is to be expected?

(a)

There will be no urine formation

(b)

There will be hardly any change in the quality and quantity of urine formed

(c)

The urine will be more concentrated

(d)

The urine will be more dilute

The hormone which helps in the reabsorption of water in kidney tubules is _____.

(a)

cholecystokinin

(b)

angiotensin II

(c)

antidiuretic hormone

(d)

Pancreozymin

____________is not a waste product.

(a)

Guanine

(b)

Creatinine

(c)

Urea

(d)

Ribose

Assertion (A): The decending limb of Henle's loop is permeable to water.
Reason (R): Aquaporins are the facilitators for water permeability.

(a)

A and R are wrong

(b)

R does not explain A

(c)

R explains A

(d)

A is right R is wrong

Synovial fluid is found in _____.

(a)

Ventricles of the brain

(b)

Spinal cord

(c)

Immovable joint

(d)

Freely movable joints

Appendicular skeleton is ______.

(a)

girdles and their limbs

(b)

vertebrae

(c)

skull and vertebral column

(d)

ribs and sternum

The vertebrae which get reduced in an adult are_____________
(i) Cervical (ii) Coccyx (iii) Sacral (iv) Thoracic

(a)

(i) and (ii)

(b)

(ii) and (iii)

(c)

(ii) and (iv)

(d)

(i) and (iv)

Choose the structure made of 8 bones

(a)

Cervical region of vertebral column

(b)

Tarsal

(c)

Cranium

(d)

Metacarpals

The respiratory centre is present in the _______.

(a)

Medulla oblongata

(b)

Hypothalamus

(c)

Cerebellum

(d)

Thalamus

Which of the following statement concerning the somatic division of the peripheral neural system is incorrect?

(a)

Its pathways innervate skeletal muscles

(b)

Its pathways are usually voluntary

(c)

Some of its pathways are referred to as reflex arcs

(d)

Its pathways always involve four neurons

Assertion (A): The inner ear acts as an organ of balance.
Reason (R): It contains the ear ossicles.

(a)

A and R are wrong

(b)

R explains A

(c)

A and R are right but R does not explain A

(d)

A is right, R is wrong

___________ are egg shaped receptors seen in the skin.

(a)

Meissner's corpuscles

(b)

Ruffini endings

(c)

Pacinian corpuscles

(d)

Hair follicle receptors

Which of the following are exclusive endocrine glands?

(a)

Thymus and Testis

(b)

Adrenal and Ovary

(c)

Parathyroid and Adrenal

(d)

Pancreas and Parathyroid

Which of the following hormone is not secreted under the influence of pituitary gland?

(a)

Thyroxine

(b)

Insulin

(c)

Oestrogen

(d)

Glucocorticoids

Match and identify the wrong pair

Column I	Column II
1. Cushing's Syndrome	Cortisol
2. Addison's disease	Adrenal cortex
3. Acromegaly	TSH
4. Gigantism	GH

(a)

1 and 3

(b)

2 only

(c)

1 and 4

(d)

3 only

The functioning of _____________ glands regulates serum calcium levels.

(a)

Thyroid

(b)

Pituitary

(c)

Thymus

(d)

Parathyroid

Which of the statement regarding Lac insect is TRUE?

(a)

A microscopic, resinous crawling scale insect

(b)

Inserts its proboscis into plant tissue suck juices and grows

(c)

Secretes lac from the hind end of body.

(d)

The male lac insect is responsible for large scale production of lac.

Isinglass is used in _____.

(a)

Preparation

(b)

Clearing of wines

(c)

Distillation of wines

(d)

Preservation of wines

There are _________ well defined breeds of cattle

(a)

24

(b)

26

(c)

20

(d)

18

In fish breeding, induced breeding involves removal of ____________________

(a)

Pituitary gland

(b)

Thymus-gland

(c)

Pineal gland

(d)

Thyroid gland

Read the following sentences and identify the correctly matched sentences.
i. In exarch condition, the protoxylem lies outside of metaxylem.
ii. In endarch condition, the protoxylem lie towards the centre.
iii. In centarch condition, metaxylem lies in the middle of the protoxylem.
iv. In mesarch condition, protoxylem lies in the middle of the metaxylem.

(a)

i, ii and iii only

(b)

ii, iii and iv only

(c)

i, ii and iv only

(d)

All of these

When a leaf trace extends from a vascular bundle in a dicot stem, what would be the arrangement of vascular tissues in the veins of the leaf?

(a)

Xylem would be on top and the phloem on the bottom

(b)

Phloem would be on top and the xylem on the bottom

(c)

Xylem would encircle the phloem

(d)

Phloem would encircle the xylem

Usually, the monocotyledons do not increase their girth, because ____.

(a)

They possess actively dividing cambium

(b)

They do not possess actively dividing cambium

(c)

Ceases activity of cambium

(d)

All are correct

The common bottle cork is a product of______.

(a)

Phellem

(b)

Phellogen

(c)

Xylem

(d)

Vascular cambium

Which among the following is correct?
i. Apoplast is fastest and operate in nonliving part. 
ii. Transmembrane route includes vacuole.
iii. Symplast interconnect the nearby cell through plasmadesmata.
iv. Symplast and transmembrane route are in living part of the cell

(a)

i and ii

(b)

ii and iii

(c)

iii and iv

(d)

i, ii, iii, iv

What type of transpiration is possible in the xerophyte Opuntia?

(a)

Stomatal

(b)

Lenticular

(c)

Cuticular

(d)

All the above

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

The element which is not remobilized?

(a)

Phosphorous

(b)

Potassium

(c)

Calcium

(d)

Nitrogen

For every CO₂ molecule entering the C₃ cycle, the number of ATP & NADPH required ________.

(a)

2ATP + 2NADPH

(b)

2ATP + 3NADPH

(c)

3ATP + 2NADPH

(d)

3ATP + 3NADPH

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.

During oxidation of two molecules of cytosolic NADH + H⁺, number of ATP molecules produced in plants are _____.

(a)

3

(b)

4

(c)

6

(d)

8

Assertion (A): Oxidative phosphorylation takes place during the electron transport chain in mitochondria.
Reason (R): Succinyl CoA is phosphorylated into succinic acid by substrate phosphorylation.

(a)

A and R is correct. R is correct explanation of A

(b)

A and R is correct but R is not the correct explanation of A

(c)

A is correct but R is wrong

(d)

A and R is wrong.

Which of the following reaction is not involved in Kreb's cycle.

(a)

Shifting of phosphate from 3C to 2C

(b)

Splitting of Fructose 1,6 bisphosphate of into two molecules 3C compounds

(c)

Dephosphorylation from the substrates

(d)

All of these

Select the wrong statement from the following:

(a)

Formative phase of the cells retain the capability of cell division.

(b)

In elongation phase development of central vacuole takes place.

(c)

In maturation phase thickening and differentiation takes place.

(d)

In maturation phase, the cells grow further.

________ is the powerful growth inhibitor

(a)

Ethanol

(b)

Cytokinins

(c)

ABA

(d)

Auxin

Seed dormancy allows the plants to

(a)

overcome unfavourable climatic conditions

(b)

develop healthy seeds

(c)

reduce viability

(d)

prevent deterioration of seeds