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प्रश्न
Define with examples: Heterotrophs
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उत्तर
The organisms which cannot prepare their own food and depends on ready-made food synthesized by green plants are called heterotrophs.
Examples - animals and human beings.
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संबंधित प्रश्न
Carbohydrates are bodybuilding nutrients.
Which of the organs perform the following function in humans?
Absorption of water
Define holozoic nutrition.
| When a person puts food in his mouth, then teeth cut it into small pieces, chew and grind it. The glands A in the mouth secrete a substance B which is mixed with the food by tongue. The substance B contains an enzyme C which starts the digestion of food in the mouth. The slightly digested food from the mouth goes down a tube D. The special type of movements E in the walls of tube D push the food into stomach for further digestion. The stomach wall secretes gastric juice containing three substance F, G and H. One of the functions of F is to kill bacteria which may enter the stomach with food. The substance G protects the inside layer of stomach from the damaging effect of substance F whereas substance H is and enzyme for digestion. The partially digested food then enters into small intestine for further digestion. |
- What are (i) gland A, (ii) substance B, and (iii) enzyme C?
- Name the tube D.
- What is the movement E known as?
- What are (i) F, (ii) G, and (iii) H?
Name the hormone that helps in regulating level of sugar in our blood. Name the gland that secrets it.
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`"i" 3/4 "c" 0/0 "pm" 0/1 "m" 1/1`
Name an animal possessing such a dentition.
Put a tick (✓) against the most appropriate alternative in the following statement.
Saliva converts starch into:
Given alongside is the diagram of the human alimentary canal.
(i) Name the parts 1-11 indicated by guidelines.
1.____ 2.____ 3.____ 4.____ 5.____ 6.____ 7.____ 8.____ 9.____ 10.___ 11.____
(ii) State the function of the juice secreted by the part 1.
(iii) State the function of the three enzymes found in the juice secreted by part 3.
Fill in the blank.
Saliva contains salivary amylase which changes starch to _____.
Write true or false for the below statement. Rewrite the false statements correctly
Pancreatic juice does not contain any enzyme.
Write true or false for the below statement. Rewrite the false statements correctly.
Saliva contains lipase which digests carbohydrates
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Who is telling a lie?
Lung: I play an important role in excretion.
Secretions of ____________ lubricate the lumen of the alimentary canal.
______ is a major organ for the digestion of food materials.
During deficiency of oxygen in tissues of human beings, pyruvic acid is converted into lactic acid in the
Name the correct substrates for the following enzymes
- Trypsin
- Amylase
- Pepsin
- Lipase
Write the chemical name and Molecular formula of tooth enamel.
