Life process

Which of the following are energy foods?

• Carbohydrates and fats

• Proteins and mineral salts

• Vitamins and minerals

• Water and roughage

The mode of nutrition found in fungi is:

• (a) Parasitic nutrition

• (b) Holozoic nutrition

• (c) Autotrophic nutrition

• (d) Saprotrophic nutrition

In amoeba, food is digested in the:

• (a) food vacuole

• (b) mitochondria

• (c) pseudopodia

• (d) chloroplast

The exit of unabsorbed food material is regu-lated by

• (a) liver

• (b) anus

• (c) small intestine

• (d) anal sphincter

Name the pores in a leaf through which respi-ratory exchange of gases takes place.

• (a) Lenticels

• (b) Vacuoles

• (c) Xylem

• (d) Stomata

A blood vessel which pumps the blood from the heart to the entire body:

• (a) artery

• (b) capillary

• (c) Vein

• (d) Haemoglobin

Name the tube which connects the kidneys to the urinary bladder.

• (a) Urethra

• (b) Nephron

• (c) Tubule

• (d) Ureter

Which is the correct sequence of body parts in the human alimentary canal?

• (a) Mouth → stomach → small intestine → large intestine → oesophagus

• (b) Mouth → oesophagus → stomach → small intestine → large intestine

• (c) Mouth → stomach → oesophagus → smallintestine → large intestine

• (d) Mouth → oesophagus → stomach → large intestine → small intestine

The procedure used for cleaning the blood of a person by separating urea from it is called:

• (a) osmosis

• (b) filtration

• (c) dialysis

• (d) double circulation

Where is the dirty blood in our body filtered?

• (a) Heart

• (b) Lungs

• (c) Ureter

• (d) Kidneys