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

In gymnosperm endosperm is formed_______.

(a)

At the time of fertilization

(b)

Before fertilization

(c)

After fertilization

(d)

Along with the development of embryo

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

Gynoecium with united carpels is termed as ______.

(a)

Apocarpous

(b)

Multicarpellary

(c)

Syncarpous

(d)

None of the above

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

In meiosis crossing over is initiated at ______.

(a)

Diplotene

(b)

Leptotene

(c)

Pachytene

(d)

Zygotene

Anastral mitosis is the characteristic feature of _________

(a)

Lower animals

(b)

Higher animals

(c)

Higher plants

(d)

All living organisms

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

Enzymes that catalyse interconversion of optical, geometrical or positional isomers are ______________

(a)

Ligases

(b)

Lyases

(c)

Hydrolases

(d)

Isomerases

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

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

In the diagram of lenticel identify the parts marked as i, ii, iii, iv

(a)

i. phellem, ii. Complementary tissue, iii.Phelloderm, iv. Phellogen.

(b)

i. Complementary tissue, ii. Phellem, iii.Phellogen, iv. Phelloderm

(c)

i. Phellogen, ii. Phellem, iii. Phelloderm, iv. complementary tissue

(d)

i. Phelloderm, ii. Phellem, iii. Complementary tissue, iv. Phellogen

The common bottle cork is a product of______.

(a)

Phellem

(b)

Phellogen

(c)

Xylem

(d)

Vascular cambium

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

What type of transpiration is possible in the xerophyte Opuntia?

(a)

Stomatal

(b)

Lenticular

(c)

Cuticular

(d)

All the above

Munch hypothesis is based on _______.

(a)

Translocation of food due to TP gradient and imbibition force

(b)

Translocation of food due to TP

(c)

Translocation of food due to imbibition force

(d)

None of 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

Identify the correct statement
i. Sulphur is essential for amino acids Cystine and Methionine
ii. Low level of N, K, S and Mo affect the cell division
iii. Non-leguminous plant Alnus which contain bacterium Frankia
iv. Denitrification carried out by nitrosomonas and nitrobacter.

(a)

I, II are correct

(b)

I, II, III are correct

(c)

I only correct

(d)

all are correct

Which chlorophyll molecule does not have a phytol tail?

(a)

Chl - a

(b)

Chl - b

(c)

Chl - c

(d)

Chl - d

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

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 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