In which group of the organism listed below food material is broken down outside the body and absorbed ?
All organisms are saprophytes.
The opening and closing of the stomatal pore depends upon
Movement of food through the oesophagus is due to :
Peristalsis is the rythmic contraction and relaxation of muscles of alimentary canal that propels the food in downward direction.
Oxygen liberated during photosynthesis comes from
Oxygen released during photosynthesis is derived from
The filtration units of kidneys are called
The common step between aerobic and anaerobic respiration takes place in :
When air is blown from mouth into a test-tube containing lime water, the lime water turns milky due to the presence of
Which is the first enzyme to mix with food in digestive tract ?
Which part of alimentary canal receives bile from the liver ?
In which part of human digestive tract common bile duct opens ?
Duodenum is first part of small intestine where common bile duct opens.
Which of the following statements is not correct?
Which of the following protects inner lining of stomach from hydrochloric acid secreted by gastric glands ?
Mucus is secreted by cells of gastric gland which forms a slimy layer over inner wall of stomach.
Blood pressure is measured by an instrument called
When few drops of iodine were poured on a potato slice, the potato turned blue-black in colour. This indicates that potato contains
Starch test is done by iodine solution which turns colour of starch blue-black.