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NEET Biology Solved Question Paper 2014

Multiple Choice Questions

Adrenaline and noradrenaline are hormones that act as

Energy producing agents
Food storage materials
Neurotransmitters
Energy storing substances

Neurotransmitters

There are four neurotransmitters identified in vertebrates acetylcholine, serotonin, adrenaline and noradrenaline.

In the following diagram showing axon terminal and synapse A, B, C, D and E respectively represent

A-axon terminal, B-synaptic cleft, C-synaptic vesicles, D-neurotransmitters, E-receptors
A- axon terminal, B-synaptic vesicles, C-synaptic cleft, D-receptors, E-neurotransmitters
A-synaptic cleft, B-synaptic vesicles, C-axon terminal, D-neurotransmitters, E-receptors
A-synaptic vesicles, B-axon terminal, C-synaptic vesicles, D-neurotransmitters, E-receptors

A- axon terminal, B-synaptic vesicles, C-synaptic cleft, D-receptors, E-neurotransmitters

Steroid hormones work as

They enter into target cells and binds with specific receptor and ativate4s specific genes to form protein
They bind to cell membrane
They catalyse formation of cAMP
None of the above

They bind to cell membrane

A steroid hormone is lipid soluble, so easily pass through the plasma membrane.

Rh-factor can produce disease

AIDS
Tumer’s syndrome
Erythroblastosis foetalis
Sickle cell anaemia

Erythroblastosis foetalis

Erythroblastosis is a haemolytic disease of newborns. It occurs when father le Rh positive and mother Rh-negative.

Food storage in Leucosolenia occur by

Ostia
Osculam
Thesocyte
Spongocoel

Thesocyte

It occurs by thesocyte which have lobose pseudopodia and are filled with food reserves, thus acting as storage cells.

Penumotoxic centre which a moderate the function of the respiratory rhythm centre is present at

Pons region in brain
Thalamus
Spinal cord
Right cerebral hemisphere

Pons region in brain

Pneumotoxic centre which can moderate the functions of the respiratory rhythm centre is present in the pons region of the brain Neural signals from this centre can reduce the duration of inspiration and thereby alter the respiration rate.

Which of the following disorder is an outcome of irregularities in the metabolism of the nitrogenous waste?

Osteoporosis
Gouty Arthritis
Osteoarthritis
Rheumatoid arthritis

Gouty Arthritis

Uric acid, a normal waste product of nucleic acid metabolism gets excreted normally through urine. When over concentration in blood, it gets deposited in the form of crystals in joints causing gouty arthritis.

Which of the following hormone secretes a gastric secretion?

Entero gastrone
Gastrin
CCK-PZ
Villikinin

Gastrin

Gastrin hormone is secreted by gastric glands to release gastric juice. Enterogastrone is secreted by the duodenal epithelium which inhibits the secretion of gastric juice.

Which type of cells is absent in sponges?

Trophocytes
Myocytes
Archeocytes
Cnidocytes

Cnidocytes

Cnidocytes or stinging cells are spherical or oval cells found in entire epidermis except that of basal disc and are found only in cnidarians other cells are found in sponges.

10.

During urine formation, which of the following process create thigh osmotic pressure in the uriniferous tubule?

Active Na⁺ absorption, followed by absorption of Cl⁻
Active Cl⁻ absorption, followed by absorption of Na⁺
Active secretion of Na⁺ into efferent arteriole followed by absorption of Cl⁻ into the efferent renal arteriole
Active secretion of Cl⁻ and absorption of Na⁺into the efferent renal arteriole

Active Na⁺ absorption, followed by absorption of Cl⁻

Osmotic pressure is a measure of tendency to take water by osmosis. During urine formation, 2/3 of Nacl and water filtered in bowman's capsule, is immediately absorbed by PCT.