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Life Process--Class X-Vasu Classes
1.
The kidneys in human beings are responsible for
a) nutrition
b) transportation
c) respiration
d) excretion
2.
The autotrophic mode of nutrition requires
a) CO2 and water
b) Chlorophyll
c) Sunlight
d) All of the above
3.
The Xylem in plants are responsible for
a) transport of water
b) transport of food
c) transport of amino acids
d) transport of oxygen
4.
The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
a) cytoplasm
b) chloroplast
c) mitochondria
d) nucleus
5.
In which of the following animals respiration occurs without any respiratory organ
a) Fish
b) Frog
c) Cockroach
d) Earthworm
6.
The exchange of oxygen and CO2 in a mammal takes place in
a) Trachea
b) Brochii
c) Bronchiole
d) Alveoli
7.
The exchange of gases in the alveoli of the lungs takes place through
a) Osmosis
b) Simple diffusion
c) Passive transport
d) Active transport
8.
The blood returning to heart from lungs via pulomonary vein has more
a) RBC per ml of blood
b) Hb per ml of blood
c) Oxygen per ml of blood
d) Nutrient per ml of blood
9.
In anaerobic respiration
a) Oxygen is taken in
b) CO2 is taken in
c) Oxygen is given out
d) CO2 is given out
10.
The first heart sound is
a) Lubb sound at the end of systole
b) Dub sound at the end of systole
c) Lubb sound at the begining of systole
d) Dub sound at the begining of systole
11.
The chlorophyll in photosynthesis is used for
a) Breaking down water molecule
b) Absorbing light
c) No function
d) Reduction of CO2
12.
Proteins after digestion are converted into
a) Starch
b) Carbohydrates
c) Small globules
d) Amino acids
13.
Oxygenated blood is carried by
a) Pulmonary vein
b) Pulmonary artery
c) Renal vein
d) Hepatic portal vein
14.
Largest Heart is found in
a) Elephant
b) Giraffe
c) Crocodile
d) Lion
15.
Opening and closing of pores is a function performed by
a) Chlorophyll
b) Chloroplast
c) Guard cells
d) Stomata
16.
Which of the following is not an acceessory excretory organ of vertebrates?
a) Skin
b) Lungs
c) Liver
d) Heart
17.
Contractile vacuole of Amoeba takes part is
a) Locomotion
b) Digestion of the food
c) Ingestion of food
d) Osmoregulation
18.
Which of the following is not a waste product of plants?
a) Urea
b) latex
c) Resins
d) Alkaloids
19.
Bile juice is secreted by
a) Stomach
b) Pancreas
c) Large intestine
d) Liver
20.
Which of these juices is secreted by pancreas?
a) Trypsin
b) Pepsin
c) Both a and b
d) Bile juice
21.
The only artery which carries deoxygenated blood is:
a) Pulmonary artery
b) Renal artery
c) Hepatic artery
d) Coronary artery
22.
The mode of nutrition found in fungi is:
a) Parasitic nutrition
b) Holozoic nutrition
c) Autotrophic nutrition
d) Saprotrophic nutrition
23.
Roots of the plants absorb water from the soil through the process of:
a) diffusion
b) osmosis
c) transpiration
d) none of the above
24.
Which of the following events in the mouth cavity will be affected if salivary amylase is lacking in the saliva?
a) Proteins breaking down into amino acids.
b) Starch breaking down into sugars.
c) Absorption of vitamins.
d) Fats breaking down into fatty acids and glycerol.
25.
Which part of nephron allows the selective reabsorption of useful substances like glucose, amino acids, salts and water into the blood capillaries?
a) Tubule
b) Glomerulus
c) Bowman’s capsule
d) Ureter
26.
Name the tube which connects the kidneys to the urinary bladder.
a) Urethra
b) Nephron
c) Tubule
d) Ureter
27.
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
28.
Identify the correct path of urine in the human body.
a) Kidney → urinary bladder → urethra → ureter
b) Urinary bladder → ureter → kidney → urethra
c) Kidney → ureter → urethra → urinary bladder
d) Kidney → ureter → urinary bladder → urethra
29.
The __________ is a network of tiny blood vessels located at the beginning of a nephron.
a) Bowman’s capsule
b) Glomerulus
c) Renal pyramid
d) Renal capsule
30.
Nitrogenous wastes excreted through urine in humans is
a) Ammonia
b) Trimethylamine oxide
c) Uric acid
d) Urea
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