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