Chapter 6 – Life Processes

In which of the following group/ groups of animals, heart does not pump oxygenated blood to different parts of the body?

The filtration units of kidneys are called –

Name the substances whose build up in the muscles during vigorous physical exercise may cause cramps?

When air is blown from mouth into a test – tube containing lime water, the lime water turned milky due to presence of:

The mode of nutrition found in fungi is:

The site of photosynthesis in the cells of a leaf is

During contraction of heart, what prevents back flow of blood?

Woody plants carry gaseous exchange through

The contraction and expansion movement of the walls of the food pipe is called:

The process by which blood is cleared of metabolic wastes in case of kidney failure is called

Trachea do not collapse when there is not much air because they are:

Which of the following events in the mouth cavity will be affected if salivary amylase is lacking in the saliva?

Which region of the alimentary canal absorbs the digested food?

Amoeba shows following kind of nutrition.

The exit of unabsorbed food material is regulated by

When a few drops of iodine solution are added to rice water, the solution turns blue- black in colour. This indicates that rice water contains:

The breakdown of pyruvate to give carbon di-oxide, water and energy takes place in

Glycolysis process occurs in which part of the cell?

The respiratory pigment in human beings is:

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

Name a circulatory fluid in the human body other than blood.

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

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

Single circulation, i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by which of the following:

Which part of nephron allows the selective re absorption of useful substances like glucose, amino acids, salts and water into the blood capillaries?

The part of the digestive system where no digestion takes place is

Normal blood pressure (systolic/diastolic) is

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

Assertion: All proteins in our food are digested in small intestine only.
Reason: The protein digesting enzymes are released onto small intestine.

Assertion: When air is passed through lime water, lime water turns milky.
Reason: Air contains 78% nitrogen and 21% oxygen.