Identify the incorrect statement about the Gram positive bacteria.

(a)

Teichoic acid absent

(b)

High percentage of peptidoglycan is found in cell wall

(c)

Cell wall is single layered

(d)

Lipopolysaccharide is present in cell wall

Identify the correctly matched pair.

(a)

Actinomycete - Late blight

(b)

Mycoplasma - Lumpy jaw

(c)

Bacteria - Crown gall

(d)

Fungi - Sandal spike

Monotropa derives nutrition by ___________

(a)

Root Nodules

(b)

Lichens

(c)

Mycorrhizae

(d)

Roots

Living organisms constitute __________

(a)

Living world

(b)

Non-living world

(c)

Animal kingdom

(d)

Plant kingdom

TMV has a molecular weight of _____________ Daltons.

(a)

39 \(\times\) 10⁶

(b)

38 \(\times\) 10⁵

(c)

39 \(\times\) 10⁷

(d)

39 \(\times\) 10¹⁰

A marine cyanobacterjal species _______________

(a)

Trichodesmium

(b)

Gloeocapsa

(c)

Nostoc

(d)

Cycas

Tobacco mosaic virus is a:

(a)

romboid shaped helical virus

(b)

rod shaped helical virus

(c)

rectangular shaped virus

(d)

triangular shaped helical virus

Give an example for cuboid symmetry.

(a)

Adeno virus

(b)

Influenza virus

(c)

TMV

(d)

Bacteriophage.

Prions are infections

(a)

Nucleic acid

(b)

Lipids

(c)

Proteins

(d)

Carbohydrates

Blue green algae is otherwise called ___________.

(a)

Xanthophyceae

(b)

Batillariophyceae

(c)

Cyanophyceae

(d)

Myxophyceae

Viroids differ from viruses in having ________

(a)

DNA molecules with protein coat

(b)

DNA molecules without protein coat

(c)

RNA molecules with protein coat

(d)

RNA molecules without protein coat

Which of following represents gametophytic generation in pteridophytes?

(a)

Prothallus

(b)

Thallus

(c)

Cone

(d)

Rhizophore

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

Tubers store food materials in _____

(a)

Oedogonium

(b)

Chara

(c)

Ulothrix

(d)

Fucus

Pulmonary tuberculosis is caused by ___________

(a)

Funaria hygrometrica

(b)

Sphagnu

(c)

Marchantia polynmorpha

(d)

Riccia

In Red algae female sex organ is called as ___________ .

(a)

Trichogine

(b)

Ovule

(c)

Oogamete

(d)

Carpogonium

When the root is thick and fleshy, but does not taken a definite shape, it said to be _________

(a)

Nodulose root

(b)

Tuberous root

(c)

Monilliform root

(d)

Fasiculated root

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

(a)

Tuberous root

(b)

Beaded root

(c)

Moniliform root

(d)

Nodulose root

Opposite decussate phyllotaxy is found in ____

(a)

Calotropis

(b)

Mango

(c)

Hibiscus

(d)

Nerium

The cells of this region undergo active cell division____________.

(a)

root hair zone

(b)

maturation zone

(c)

elongation zone

(d)

meristematic zone

In Polyalthia longifolia, the stem is_____________.

(a)

decurrent

(b)

caudex

(c)

excurrent

(d)

culm

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

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

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

(a)

plasma membrane

(b)

cytoskeleton

(c)

mitochondria

(d)

plastids

Digestion of cell organelles by the cell is called_____

(a)

Phagocytosis

(b)

Pinocytosis

(c)

Autophagy

(d)

Autolysis

Compound microscope was invented by___________________________________

(a)

Z. Jansen

(b)

Compound microscope

(c)

Microscope

(d)

Bright field microscope.

Unique characteristic of__________________________is that they are inherited from female parent only.

(a)

Golgi bodies

(b)

Mitochondria

(c)

Mitochondrial DNA

(d)

Chloroplasts

_____________________was discovered by Harry Beevers.

(a)

Glyoxysome

(b)

Microbodies

(c)

Sphaerosome

(d)

Centrioles

Chromatids are identical and are called______________________

(a)

Satellite

(b)

Kinetochore

(c)

Polycentric

(d)

Sister chromatids

Anaphase promoting complex APC is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in human cell, which of the following is expected to occur?

(a)

Chromosomes will be fragmented

(b)

Chromosomes will not condense

(c)

Chromosomes will not segregate

(d)

Recombination of Chromosomes will occur

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

(a)

Anaphase

(b)

Metaphase

(c)

Prophase

(d)

Interphase

Which one is a incorrect pair?

(a)

G₂ phase - Growth phase

(b)

M phase - Interphase

(c)

S phase - DNA synthesis

(d)

G₁ phase - RNA and DNA synthesis

Chromosome contains a short, constricted region called __________ .

(a)

Centromere

(b)

Homologous pairs

(c)

Chromatids

(d)

Haploid state

The __________ eventually stretches right across the cell forming the middle lamella.

(a)

Cytokinesis

(b)

Cell plate

(c)

Genetic stability

(d)

Repair of tissues

An example of feedback inhibition is

(a)

Cyanide action on cytochrome

(b)

Sulpha drug on folic acid synthesiser bacteria

(c)

Allosteric inhibition of hexokinase by glucose-6-phosphate

(d)

The inhibition of succinic dehydrogenase by malonate

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

The middle lamella is made up of ___________.

(a)

Muramic acid

(b)

Calcium pectate

(c)

Phosphoglycerol

(d)

Hemicellulose

RNA is the polymer of ____________

(a)

Ribonucleotide

(b)

Ribonucleoside

(c)

Deoxyribonucleotide

(d)

Ribosome

Glycogen is not seen in the organs of human body ___________

(a)

Muscle fibre

(b)

Liver

(c)

Brain

(d)

Kidney

____________ are those that are required for the basic metabolic processes like photosynthesis.

(a)

Water

(b)

Hydrogen

(c)

Organic compounds

(d)

Primary metabolites

____________ are made up of successive layers of amylose and amylopectin.

(a)

Polysaccharide

(b)

Glycosidic bond

(c)

Cellulose

(d)

Starch

(a) Single bonded	(i) Palmitic acid, Stearic acid
(b) Double bonded	(ii) Palmitic acid, Stearic acid
(c) Single bonded	(iii) Oleic acid, Linoleic acid
(d) Double bonded	(iv) Oleic acid, Linoleic acid

(a)

A & D are correct; B & C are incorrect

(b)

A & B are correct; C & D are incorrect

(c)

A & C are correct; B & D are incorrect

(d)

A & D are incorrect; B & C are correct

The individual polypeptide chains of the protein are called ______________

(a)

Quaternary protein structure

(b)

Subunits

(c)

Enzymes

(d)

Antibodies

______________ could also be termed as poisons.

(a)

Activation energy

(b)

Inhibitors

(c)

Competitive inhibitors

(d)

Non - competitive inhibitors

______________ carries a copy of instructions for assembling amino acids into proteins.

(a)

Ribonucleic acid

(b)

messenger RNA

(c)

Prokaryotic mRNA

(d)

transfer RNA

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

What is the fate of primary xylem in a dicot stem showing extensive secondary growth?

(a)

It is retained in the centre of the axis

(b)

It gets crushed

(c)

May or may not get crushed

(d)

It gets surrounded by primary phloem

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

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