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Life Processes
Question Bank
Choose the correct answer
1) The
kidneys in human beings are part of system for
- a Nutrition
- b) Respiration
- c) Excretion
- d) Transportation
2) The
autotrophic mode of nutrition requires
- a Carbon dioxide and water
- b) Chlorophyll
- c) Sunlight
- d) All of the above
3) Absorption
of water by roots is increased by
- a) Increase
in rate of photosynthesis
- b) Increase
in transpiration
- c) Decrease
in salt update
- d) Decrease
in transpiration
4) The
breakdown of pyruvate to give carbon dioxide, water and energy takes place in
- a) Cytoplasm
- b) Mitochondria
- c) Nucleus
- d) Chloroplast
5) Which
part of the alimentary canal receives bile juice?
- a) Stomach
- b) Small
intestine
- c) Large
intestine
- d) Oesophagus
- a) Trypsin
- b) Lipase
- c) Amylase
- d) Pepsin
7) The
impure blood is filtered in the ____ of nephron
- a) Glomeruli
- b) Loop
of henle
- c) Proximal
convoluted tubule
- d) Distal
convoluted tubule
8) The
site of complete digestion of carbohydrates, proteins and fats is
- a) Large
intestine
- b) Stomach
- c) Liver
- d) Small
intestine
9) The
temporary fingerlike extension in amoeba to take in food is
- a) Food
vacuole
- b) Cilia
- c) Nucleus
- d) Pseudopodia
10)
Identify the correct path of urine formation
- a) Kidney
à
urinary bladder à
urethra à
ureter
- b) Urinary
bladder à
ureter à
kidney à
urethra
- c) Kidney
à
ureter à
urethra à
urinary bladder
- d) Kidney
à
ureter à
urinary bladder à
urethra
11)____ are the filtration unit of
kidneys
- a) Neuron
- b) Nephron
- c) Alveoli
- d) Urethra
12)
Products obtained in anaerobic respiration
- a) Lactic
acid + energy
- b) Carbon
dioxide + water + energy
- c) Ethanol
+ carbon dioxide + energy
- d) Pyruvate
13)
Aorta arises from
- a) Left
auricle
- b) Left
ventricle
- c) Right
auricle
- d) Right
ventricle
Answer the following
1) What
is nutrition? Write their types
2) Define
heterotrophic nutrition. Write their types
3) What
are the components of the transport system in human beings? What are the
functions of these components?
4) What
is the role of acid in our stomach?
5) Where
does aerobic respiration occurs?
6) What
is energy currency for most cellular process?
7) Why
are the white blood corpuscles called “soldiers” of the body?
8) Explain
double circulation of the blood in human beings.
9) Which
are the factors essential for photosynthesis? Mention the events that occur during
photosynthesis. Write the balanced chemical equation of photosynthesis.
10)
What are the methods used by plants to get rid of
excretory products?
11)Name the red pigment which carries
oxygen in the blood.
12)
What is villi? Write its function
13)
What are the different ways in which glucose is
oxidized to provide energy in various organism? Show it in the form of flow
chart.
14)
How is small intestine designed to absorb food?
15)
List the function of stomata
16)
What will happen if platelets were absent in blood?
17)
What is the function of digestive enzyme?
18)
How is food transported in plants?
19)
Write the function of transpiration.
20)
Explain the function of stomach in digestion
21)
Write function of the following : arteries, veins,
capillaries, platelets, lymph.
22)
Name the structure which helps in the process of
ingestion in Amoeba
23)
What are the final products of carbohydrates,
proteins and fats after digestion?
24)
Explain the process of digestion in human beings
25)
What are the wastes generated during
photosynthesis?
26)
How are alveoli designed to maximize the exchange
of gases?
Difference between
1) Xylem
and phloem
2) Arteries
and veins.
3) Aerobic
and anaerobic respiration
4) Autotrophic
and heterotrophic nutrition.
5) transpiration
and translocation.
Give reason
1) The
trachea is made up of cartilaginous rings
2) There
are valves present in veins
3) Lack
of oxygen in muscles leads to cramps in cricketers
4) It
is necessary to separate oxygenated and deoxygenated blood in mammals
Diagrams
1) Human
heart
2) Digestive
system
3) Excretory System
4) Stomata (Open and close)
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