WorksheetsLife processes - Digestion and respiration
Total questions: 25
Worksheet time: 19mins
Which describes the life process regulation?
Breaking down food into molecules usable by cells
Taking in food
Responding to changes in the internal or external environment
Taking in or releasing oxygen or carbon dioxide
The cells utilize glucose to produce energy
Nutrition
Excretion
Respiration
Homeostasis
A plant absorbs minerals from the soil
Circulation
Digestion
Growth
Nutrition
From which structure, the free oxygen gas produced
during photosynthesis is released?
Epidermis
Stomata
Cortex
Guard cell
Villi present on the internal wall of intestine help in
the
emulsification of fats
breakdown of proteins
absorption of digested food
digestion of carbohydrates
Digestion of starch starts from:
Stomach
Intestine
Oesophagus
Mouth
The process of transpiration in plants helps in:
Opening of stomata
Absorption of CO2 from atmosphere
Upward conduction of water and minerals
Absorption of O2 from atmosphere
What is the mode of nutrition in fungi?
Autotrophic
Heterotrophic
Saprophytic
Parasitic
What is the final product of photosynthesis?
Protein
Fat
Starch
Mineral salt
Digestion starts from
Stomach
Small intestine
Oesophagus
Buccal cavity
Teeth are covered with a thin coating of
Dentine
Crown
Enamel
Cementum
The digestive juice not produced by stomach contains
Hydrochloric acid
Pepsin
Mucus
Trypsin
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.
Hydrochloric acid is secreted by
A. Pancreas
B. Small intestine
C. Liver
D. Gastric glands of the stomach
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
ingestion - digestion - assimilation - absorption - egestion
ingestion - digestion - absorption - assimilation - egestion
ingestion - absorption - digestion - egestion - assimilation
ingestion - assimilation - absorption - digestion - egeston
All producers show
heterotrophic nutrition
autotrophic nutrition
holozoic nutrition
both A and B
pancreas pour secretions into
oesophagus
stomach
large intestine
duodenum
What is digestion?
Breaking down food into molecules usable by cekks
Taking in food or drink
Maintaining a stable internal environment
Taking in or releasing of oxygen or carbon dioxide
Which side of the membrane has a low concentration of molecules?
Right
Left
Osmosis takes place when __________.
Glucose is broken down to release energy
The cell gets rid of waste products
Only when equilibrium is possible
Water moves in or out through the cell membrane
