Life process - 1

In amoeba, food is digested in the:

• Food vacuole

• Mitochondria

• Pseudopodia

• Chloroplast

In which of the following groups of organisms are food materials broken down outside the body and absorbed?

• Mushroom, green plants, amoeba

• Yeast, mushroom, bread mould

• Paramecium, amoeba, cuscuta

• Cuscuta, lice, tapeworm

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

• Translocation

• Transpiration

• Peristaltic movement

• Digestion

The opening and closing of the stomatal pore depend upon:

• Oxygen

• Temperature

• Water in the guard cells

• Concentration of CO₂

Digestion of food starts from which organ of the human digestive system?

• Mouth due to the presence of saliva

• Oesophagus that moves the food in the gut

• Pancreas that releases juices for fat breakdown

• Stomach that helps in mixing food with digestive juices

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

• Mouth → stomach → small intestine → large intestine → oesophagus

• Mouth → oesophagus → stomach → small intestine → large intestine

• Mouth → stomach → oesophagus → small intestine → large intestine

• Mouth → oesophagus → stomach → large intestine → small intestine