The kidneys in human beings are a part of the system for

The autotrophic mode of nutrition requires

 Select the correct statement

Complete digestion of carbohydrates, proteins and fats takes place in

Carbohydrate in humans is stored in the form of

Name the excretory unit of a kidney

What is breathing?

Name the type of blood vessels which carry blood from organs to the heart.

What is lymph?

Which are the most common chemical reaction in a body?

Where do plants get each of the raw materials required for photosynthesis?

What are the components of the transport system in highly organised plants?

List two vital functions of the human kidney.Name the procedure used in the working of artificial kidney.

Draw the human heart and label the following on it:
(i)Aorta,
(ii)Coronary,
(iii)pulmonary trunk and
(iv)superior vena cava.

Give reasons for the following:
(i)The glottis is guarded by epiglottis
(ii)The lung alveoli are covered with blood capillaries.
(iii)The wall of trachea is supported by cartilage rings.

Describe the process of urine formation in kidneys.

(a)Draw the respiratory system of human beings.
(b)Label the following on the diagram drawn: Larynx, Trachea, Primary Bronchus, Lungs
(c)What happens to the carbon dioxide which collects in human tissues?