Life Processes - HBBVS

This is correct as autotrophs make their food from carbon dioxide and water. Carbon dioxide and water are inorganic substances.

This is the correct answer. Gastric juice contains hydrochloric acid, enzyme pepsin and mucus.

This is the correct answer is tracheids are long and thin. They transport water.

This is the correct answer. Atria are the two upper cavities of the heart from which blood is passed to the ventricles. 

This is the correct answer as amoeba uses holozoic mode of nutrition.

This is the correct answer. Diaphragm forms the floor of the chest cavity in humans.

This is the correct answer.

Mushroom has saprophytic mode of nutrition.

The chemical energy stored in plants is released in the human body during respiration.

This is the correct answer. The water required by the plants for photosynthesis is absorbed by the roots of the plants from the soil through the process of osmosis.

This statement is incorrect. The photosynthesis to make starch in leaves does not take place without carbon dioxide and water as well as sunlight and chlorophyll.

This is the correct answer. Egestion is the discharge or expulsion of undigested food from the body.

This is the correct answer as this staement is correct. The process of obtaining food by amoeba is called phagocytosis.
 

This is the correct answer as all the statements are incorrect. 

Digestive enzymes present in the cytoplasm enter the food vacuole to break the food down.
The digestion takes place inside the food vacuole due to which the food becomes soluble.
The food vacuole disappears after the absorption of food in amoeba.

The oesophagus is lined with muscle. This muscle pushes the food down into the stomach.

The small intestine is a long, highly convoluted tube in the digestive system that absorbs about 90% of the nutrients from the food we eat. It is given the name because it is only 1 inch in diametre, making it less than half the diametre of the large intestine. The small intestine is, however, about twice the length of the large intestine and usually measures about 10 feet in length.

This is the correct answer. Liver secretes bile. 

This is the correct answer as the liver stores the digested food, that is not immediately used by the body, as glycogen.

This is the correct answer as all the statements are correct.

This is the correct answer as both these statements are incorrect.

Tooth enamel is harder than bone. It is the hardest part of the human body. The part below the tooth enamel is called dentine.

This is the correct answer. The chambers of a heart are separated by a partition called septum.

This is the correct answer as sphygmomanometer is used to measure blood pressure.

This is the correct answer as humans, frogs and lizards have a double circulation system.

This is the correct answer as this statement is incorrect. Lymphatic system takes part in the nutritive process of the body and not the excretory process.