RAPID FIRE

•Artificial removal of nitrogenous wastes from the human body in the event of kidney failure is

• Plasmolysis

• Dialysis

• Diffusion

• Osmosis

•The function of salivary amylase is to convert

• Fats into fatty acids.

• Proteins into amino acids.

• Starch into sugar.

• Sugar into starch

•The autotrophic mode of nutrition requires

• carbon dioxide and water.

• chlorophyll.

• sunlight.

• all of the above.

•The breakdown of pyruvate to give carbon dioxide, water and energy takes place in

• cytoplasm.

• mitochondria.

• chloroplast.

• nucleus.

Movement of food through oesophagus is due to

• Lubrication by saliva

• Peristalsis

• Gravitational Pull

• All of the above

When water enters the guard cells the stomata

• •Opens

• •Closes

• •Open or closes

• •No effect

The enzyme Pepsin is inactive in stomach without the presence of

• •Nitric Acid

• •Hydrochloric acid

• •Acetic acid

• •Butyric acid

Villi present on the inner lining of the intestinal wall

• Secretes enzymes for digestion

• Secretes hormones

• Decreases the surface area for absorption

• Increases the surface area for absorption

During cellular respiration one molecule of glucose is first broken down into two molecules of

• Acetic acid

• Pyruvic acid

• Lactic acid

• None of the above

Rajib was absent in the class because of muscle pain which he claims to be due to excess physical exercise he had done yesterday. This pain is due to

• Formation of lactic acid

• Formation of acetic acid

• Formation of Pyruvic acid

• Formation of Hydrochloric acid