Life Processes
Which of these is FALSE about nutrition in amoeba?
Amoeba first breaks down the food into simpler particles and then swallows it
The food is swallowed by amoeba creating a food vacuole
Digestion of food takes place in an amoeba with the help of digestive juices
Amoeba makes use of pseudopodia for movement and to capture food
Amoeba first breaks down the food into simpler particles and then swallows it
Nutrition in an amoeba occurs through a process called phagocytosis where the entire organism pretty much engulfs the food it plans on eating up. As amoeba is a unicellular organism, it does not have any specialized organ for the mechanism of nutrition. It directly swallows the whole food and a food vacuole is created. Digestive juices then get secreted in the vacuole and the food is slowly digested. After this, the waste is excreted.
Amoeba first breaks down the food into simpler particles and then swallows it Nutrition in an amoeba occurs through a process called phagocytosis where the entire organism pretty much engulfs the food it plans on eating up. As amoeba is a unicellular organism, it does not have any specialized organ for the mechanism of nutrition. It directly swallows the whole food and a food vacuole is created. Digestive juices then get secreted in the vacuole and the food is slowly digested. After this, the waste is excreted.
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The process of obtaining food to meet the energy demands of the body is known as:A. excretion
B. respiration
C. nutrition
D. circulation
The process involving oxidation of food to release energy is known as _________ .
A. breathing
B. excretion
C. circulation
D. respiration
What is the function of the sac-like structures present at the end of bronchioles?
A. Storage of respiratory gases
B. Exchange of respiratory gases
C. Protection of lungs
D. Protection from bacteria
Exchange of gases in alveoli occurs through:
A. absorption
B. dialysis
C. diffusion
D. anaerobic respiration
The process of digestion of food starts in the:
A. mouth
B. stomach
C. small intestine
D. oesophagus
The smallest blood vessel of the circulatory system is known as the:
A. artery
B. vein
C. capillary
D. aorta
Where does digestion of proteins take place?
A. Stomach only
B. Stomach and small intestines
C. Stomach and large intestines
D. Large intestines only
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