Question # 1

the most abundant organic compound in mammalian cell

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Water

Lipids

Proteins

Carbohydrates

The fluid that surrounds the Thylakoid is called

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Matrix

Stroma

Medium

Cytoplasm

Which of the following is true about mammals

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They have right aortic each only

They have left aortic each only

They have left and right aortic arches

They do not have aortic each

The open circulatory system is present in

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Periplaneta

Pheretima

Amphioxus

Rana tigrina

Which of the following is not included in grade Bilateria

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Coelenterates

Nematodes

Annelids

Molluscs

Mosses belong to the subdivision.

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Hepaticapsida

anthoceropsida

Bryopsida

Ascomycota

Deficiency of phosphorus in plants causes.

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chlorosis

Stunted growth of roots

Premature death of plants

Yellowing of leaf margins

Mammals become dominant in

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Paleozoic period

Mesozoic period

Coenozoic period

Proterozoic period

Which of the following is a modified leaf.

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Tendril

Thron

Flower

Both a and b

Water potential of pure water is.

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Less than zero

Equal to zero

More than zero

Equal to one

A rasping tongue like radula having horny teeth is present in.

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sponges

Molluscs

Coelonterates

Annelids

The release of ovum from the ovary is called.

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Ovulation

Menstruation

follicle atresia

Menace

Cell cycle involves.

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Growth of cell

Replication of DNA

Cell division

None of these

Towards the end of pregnancy, the reduction in progesterone level, stimulates pituitary gland to produce.

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Oxytocin

Oestrogen

Androgen

Pro lectin

Oxytocin is secreted by the endocrine gland named:

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Pituitary gland

Thyroid gland

Parathyroid gland

Adrenal gland

Which one of the following is an endotherm

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Humming Bird

Birds

Bat

Reptiles

The internal hydrostatic pressure in plants is.

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Root

Turgor

Osmotic

Solute

Origin site of replication is one in

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Prokaryotes

Eukaryotes

None of these

Both a & b

In sub humid tropical grassland rate of primary production is more than

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2000 g/m²

3000 g/m²

4000 g/m²

6000 g/m²

The wall of trachea(windpipe) and bronchi of man is fernished with a series of incomplete:

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Cartilagenous plates

Chitinous rings

Cartilaginous rings

Muscular rings

Mature bone cells are called as

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osteocytes

Chondrocytes

Osteoblasts

Blastocytes

Which one of the following would cause the hardy-weinberg principle to be inacurate?

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The size of the population is very large.

Individual mate with one another at random

Natural selection is present

There is no source of new copies of alleles from outside the population

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