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Class 10 Science
Life Processes
Quiz 2
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Which process converts light energy to chemical energy ?
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Respiration
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transpiration
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photosynthesis
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transportation of water and minerals
ASSERTION: Rings of cartilage are present in the throat. REASON: These ensure that the air-passage does not collapse.
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If the assertion is INCORRECT, but the reason is CORRECT
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If both assertion and reason are INCORRECT
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If both assertion and reason are CORRECT, but the reason is NOT THE CORRECT explanation of the assertion.
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If the assertion is CORRECT, but the reason is INCORRECT
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If both assertion and reason are CORRECT and the reason is the CORRECT explanation of the assertion.
The movement of food in phloem is called:
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transpiration
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translocation
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respiration
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evaporation
ASSERTION: In human beings, the respiratory pigment is haemoglobin. REASON: It is a type of protein which has high-affinity carbon dioxide.
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If both assertion and reason are INCORRECT
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If the assertion is INCORRECT, but the reason is CORRECT
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If both assertion and reason are CORRECT and the reason is the CORRECT explanation of the assertion.
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If both assertion and reason are CORRECT, but the reason is NOT THE CORRECT explanation of the assertion.
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If the assertion is CORRECT, but the reason is INCORRECT
Digestion is accomplished by a chemical process called
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Condensation
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Hydrolysis
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Transamination
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Deamination
Largest gland in the body is –
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pancreas
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Gastric gland
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Liver
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Adrenal
The main function of intestinal villi is –
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Stimulate Peristalsis
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provide a large surface area for absorption
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distribute digestive enzymes uniformly
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Prevent anitperistalsis
Bile is produced and secreted by –
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Liver
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Gall bladder
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Pancreas
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Spleen
Salvia converts –
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Glycogen into glucose
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Fats into vitamins
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Starch into maltose
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Proteins into amino acids
Major function of \(HCI\) of gastric juice is –
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Kill microorganisms
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Dissolve food
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Providing an acidic medium for pepsin
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Facilitate the absorption of food
Which one does not produce any digestive enzyme?
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Duodenum
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Liver
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Stomach
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Pancreas
Ptyalin is an enzyme present in –
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Pancreatic juice
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Gastric juice
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Saliva
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Intestinal juice
Vitamin K is required for
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Change of fibrinogen to fibrin
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Formation of thrombonplastin
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Change of prothrombin to thrombin
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Synthesis of prothrombin
A good source of lipase is –
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Gastric juice
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Bile
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Pancreatic juice
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Saliva
HCI of gastric juice is produced by
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Columnar Cells
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Chief cells
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Oxyntic cells
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Goblet cells
The number of salivary glands present in human beings is –
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2 pairs
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3 pairs
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4 pairs
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5 pairs
The action of bile can be called –
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Dehydrogenation
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Oxidation
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Etherification
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Emulsification
Chylomicrons that enter the lacteals are composed of –
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Protein coat around triglycerides
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Proteins alone
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Triglycerides around a protein core
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Triglycerides alone
The end product of fat digestion is –
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Amino acids
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Fatty acids and Glycerol
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Alkaloids
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Glucose
Which of the following organs are not directly connected to each other?
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Buccal cavity-stomach
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Colon-rectum
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Stomach-duodenum
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Oesophargus-stomach
Prorennin occurs in
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Gastric juice
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Intestinal juice
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Pancreatic Juice
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Saliva
Enterokinase is found in
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Saliva
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Intestinal juice
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Gastric juice
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Pancreatic Juice
Human beings are –
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Omnivorous
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Carnivorous
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Herbivorous
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Autotrophic
Bile is released by
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Cholecystokinin
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Enterocrinin
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Secretin
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Gastrin
Which set is mixed with the food in small intestine?
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Gastric juice, bile, pancreatic juice
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Bile, pancreatic, juice and saliva
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Bile, pancreatic juice, succus entericus
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Saliva, gastric juice, bile
The digestion of food starts in the mouth where starch is converted into sugar by the action of
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Surcease
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Ptyalin
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Trypsin
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Pepsin
Gastric juice is –
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Acidic
0%
Alkaline
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Slightly alkaline
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Neutral
The major anion present in the pancreatic juice obtained through the stimulatation of secretin is
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Chloride
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Bromide
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Bicarbonate
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Phosphate
In dicot plants, stomata are found in:
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Lower and upper surface of the leaf
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Upper surface of the leaf
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Lower surface of the leaf
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Tip of the leaf
Photosynthetic pigments are located in the chloroplast in –
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Thylakoid membranes
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Intermembrane space
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The inner membrane of envelope
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Intrathylakoid space
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