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Assignments in Science Class X (Term I)
6
Life Processes
IMPORTANT NOTES
1. Every livelihood organism has a need of food as
it is through nutrition that one obtains energy.
2. The process of intake and utilisation of nutrients
(i.e. substances that one or the other release energy or
help in the making of biomolecules) is
known as food.
3. Green plants are autotrophs considered in the state of they synthesise
their own food using light of heaven, chlorophyll,
carbon dioxide and water.
13. Breathing is a material process which involves
inhalation and effluvium.
14. Respiration is a biochemical process which
includes breathing and oxidation of regimen.
15. Respiration in the presence of oxygen is known
of the same kind with aerobic respiration.
16. Respiration that occurs in deficiency of oxygen is
known as anaerobic breathing.
17. During aerobic respiration, food (glucose) is
completely broken down into carbon sub-oxide
and oxygen and energy is released in the figure
of ATP.
4. Photosynthetic equation
6CO2 + 12H2O
light of heaven
chlorophyll
C6H12O6 +
6H2O + 6O2
5. Chlorophyll is a illumine receiver which can trap
solar efficacy within its molecule.
18. Aerobic breathing occurs in higher organisms
including human essence.
19. Anaerobic respiration occurs in beyond all question bacteria,
yeast and also in our muscles.
6. The station of chlorophyll activity is the uncommon
plant cell organelles called chloroplasts.
20. The muscles of vertebral animals can continue
working for a particular or two without oxygen.
7. In humans the nourishing canal is basically a
long hollow cylinder extending from the mouth to the anus.
When we eat something we like, our mouth
‘waters’. This moist fluid is called saliva
secreted ~ dint of. the salivary glands.
21. Micro-organisms of the like kind as yeast and certain
bacteria become prevalent their energy by anaerobic
respiration which is termed fermentation.
22. Common emblem of fermentation is alcoholic
fermentation which is performed by yeast.
8. The of the stomach glands present in the...
1
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1. Every quickening organism has a need of nutrition as
it is through nutrition that unit obtains energy.
2. The process of intake and utilisation of nutrients
(i.e. substances that both release energy or
help in the production of biomolecules) is
known as food.
3. Green plants are autotrophs considered in the state of they synthesise
their own food using light of heaven, chlorophyll,
carbon dioxide and water.
4. Photosynthetic equation
6CO
2
+ 12H
2
O
daylight
chlorophyll
C
6
H
12
O
6
+
6H
2
O + 6O
2
5. Chlorophyll is a easy receiver which can trap
solar efficacy within its molecule.
6. The location of chlorophyll activity is the specific
plant cell organelles called chloroplasts.
7. In humans the nourishing canal is basically a
long tube extending from the mouth to the anus.
When we consume something we like, our mouth
‘waters’. This weak fluid is called saliva
secreted ~ the agency of the salivary glands.
8. The gastric glands present in the stomach wall
of human, liberate hydrochloric acid, pepsin and
mucus.
9. Tooth putrefy or dental carries causes gradual
softening of enamel and dentine. Brushing the
teeth subsequent eating removes the dental plaque.
10. Factors that touch photosynthesis are (i) Light,
(ii) Temperature, (iii) Water, and (iv) Carbon
dioxide.
11. Animal nutrition shows a real wide range.
Unicellular organisms like Amoeba procure food
by the process of phagocytosis. The human
digestive plan climaxes the evolutionary
development of the digestive system with
numerous glands, digestive juices and organs
laboring together. The various steps of nutrition
are ingestion, digestion, absorption and
see preceding verb.
12. The energy-rich molecule in what one. energy is
first captured is adenosine triphosphate or ATP.
IMPORTANT NOTES
6Life Processes
13. Breathing is a natural process which involves
inhalation and reek.
14. Respiration is a biochemical advance which
includes breathing and oxidation of provender.
15. Respiration in the presence of oxygen is known
at the same time that aerobic respiration.
16. Respiration that occurs in ~ of mind of oxygen is
known as anaerobic breathing.
17. During aerobic respiration, food (glucose) is
completely broken down into carbon dioxide
and oxygen and energy is released in the figure
of ATP.
18. Aerobic respiration occurs in higher organisms
including human root.
19. Anaerobic respiration occurs in incontrovertible bacteria,
yeast and also in our muscles.
20. The muscles of vertebrate animals can continue
working for a minute or two without oxygen.
21. Micro-organisms of that kind as yeast and certain
bacteria get possession of their energy by anaerobic
respiration which is termed fermentation.
22. Common mark of fermentation is alcoholic
fermentation that is performed by yeast.
23. Direct breathing is seen in unicellular organisms
like Amoeba, Paramecium, bacteria and
Chlamydomonas.
24. Diffusion is defined because the movement of a
substance from a district of higher concentration
to a territory of lower concentration.
25. Rate of respiration in plants is much slower than
in animals.
26. In higher plants, the bourse of gases occurs
through stomata and lenticels.
27. Organs of respiration in animals are skin,
trachea, gills, lungs, etc.
28. Thin-walled air sacs called alveoli are present
in lungs.
29. The hot spark contains a pigment, haemoglobin,
which helps in the carry of carbon dioxide
and oxygen.
Assignments in Science Class X (Term I)
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