Life Processes - Digestion and Respiration Quiz
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What is the basic unit of structure and function in a living thing?
A. a cell
B. a tissue
C. an organ
D. an organ system
Villi present on the internal wall of intestine help in the
A. emulsification of fats
B. breakdown of proteins
C. absorption of digested food
D. digestion of carbohydrates
Digestion of starch starts from:
A. Stomach
B. Intestine
C. Oesophagus
D. Mouth
Teeth are covered with a thin coating of
A. Dentine
B. Crown
C. Enamel
D. Cementum
Which is the correct sequence of body parts in the human alimentary canal?
A. Mouth → stomach → small intestine → large intestine → oesophagus
B. Mouth → oesophagus → stomach → small intestine → large intestine
C. Mouth → stomach → oesophagus → smallintestine → large intestine
D. Mouth → oesophagus → stomach → large intestine → small intestine
the correct order of steps in nutrition in human beings is
A. ingestion – digestion – assimilation – absorption – egestion
B. ingestion – digestion – absorption – assimilation – egestion
C. ingestion – absorption – digestion – egestion – assimilation
D. ingestion – assimilation – absorption – digestion – egeston
What is the final product of photosynthesis?
A. Protein
B. Fat
C. Starch
D. Mineral salt
The digestive juice not produced by stomach contains
A. Hydrochloric acid
B. Pepsin
C. Mucus
D. Trypsin
Which side of the membrane has a low concentration of molecules?
A. Right
B. Left
A plant absorbs minerals from the soil
A. Circulation
B. Digestion
C. Growth
D. Nutrition
Which of the following events in the mouth cavity will be affected if salivary amylase is lacking in the saliva?
A. Starch breaking down into sugars.
B. Proteins breaking down into amino acids.
C. Absorption of vitamins.
D. Fats breaking down into fatty acids and glycerol.
Which describes the life process regulation?
A. Breaking down food into molecules usable by cells
B. Taking in food
C. Responding to changes in the internal or external environment
D. Taking in or releasing oxygen or carbon dioxide
What is the mode of nutrition in fungi?
A. Autotrophic
B. Heterotrophic
C. Saprophytic
D. Parasitic
Hydrochloric acid is secreted by
A. Pancreas
B. Small intestine
C. Liver
D. Gastric glands of the stomach
From which structure, the free oxygen gas produced during photosynthesis is released?
A. Epidermis
B. Stomata
C. Cortex
D. Guard cell