UNN Biology 2014/2015 Day 3 Past Questions

Practice each question, then open it to see the full details.

The process that involves the production of ethanol, CO₂ and H₂ is called ....

A.fermentation
B.respiration
C.transpiration
D.photosynthesis

Genes are located at the ...

A.chromosome
B.nucleus
C.mitochondria
D.ribosome

Teleost fish breathes with its

A.fins
B.gills
C.scales
D.lateral line

..... consists mainly of water in the blood?

A.lymph
B.plasma
C.serum
D.platelets

Protein in plasma

A.causes clotting of blood
B.causes increase in osmotic potential
C.gives the blood its red colour
D.regulates the acid-base balance of the blood

A substance produced by the action of hydrochloric acid on gastric juice in the stomach is

A.trypsis
B.rennin
C.pepsin
D.lipase

The gaps between two neurons through which impulses cross by means of chemical reaction are called

A.axons
B.ganglia
C.synapse
D.dendrites

Spider belongs to the same class with

A.mosquito
B.tick
C.chiddae
D.cockroach

The process by which a plant grows towards the direction of water is ....

A.geotropism
B.phototropism
C.hydrotropism
D.chemotropism

When a red blood cell is placed in water, the process of water movement is

A.osmosis
B.diffusion
C.imbibition
D.active transport