Biology Most expected Questions series-2
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1. The oesophagus opens into which part of stomach :-
(1) Cardiac
(2) Pyloric
(3) Glottis
(4) Gullet
2. Which of the following guards the opening of hepato pancreatic duct into the duodenum ?
(1) Sphincter of Boyden
(2) Sphincter of Oddi
(3) Sphincter of Wirsung
(4) Pyloric sphincter
3. Digestion of both starch and protein is done by
(1) Gastric juice
(2) Gastric lipase
(3) Pancreatic juice
(4) Ptylin
4. Digestion of proteins begins in the ___(i)___ and digestion of polysaccharides begins in the __(ii)___ where (i) and (ii) are respectively :-
(1) Mouth and stomach
(2) Stomach and small intestine
(3) Stomach and mouth
(4) Stomach and stomach
5. Vitamin 'c' is useful in :-
(1) Wound healing
(2) Growth of bone
(3) Growth of pigments
(4) Treating of pernicious anaemia
6. Vitamin involved in vision is :-
(1) A
(2) B12
(3) K
(4) E
7. Digestion process in humans is :-
(1) Extracellular
(2) Intracellular
(3) None
(4) Both (1) and (2)
8. Read the following statements carefully :
(A) An oblique muscle layer may be present in some region of alimentary canal
(B) Liver is present in abdominal cavity just below diaphragm
(C) Valve present at junction of ileum and large intestine, which prevent back flow of faecal matter
(D) Lacteals take part in absorption of fatty acid and glycerol
How many above statements are correct ?
(1) Four
(2) Three
(3) Two
(4) One
9. Conduction zone in mammals are
(1) Lungs, nasal chamber, pharynx, wind pipe and trachea
(2) Lungs, nasal path, wind pipe and trachea
(3) Lungs, pharynx, wind pipe and trachea
(4) Nasal path, nasal chamber, pharynx, wind pipe or trachea
10. PCO2 is maximum in :-
(1) Alveoli and deoxygenated blood
(2) Alveoli and oxygenated blood
(3) Tissue and deoxygenated blood
(4) Tissue and oxygenated blood
11. Which of the following is not included in vital capacity ?
(1) RV
(2) IRV
(3) TV
(4) ERV
12. Signals from fully developed foetus and placenta ultimately lead to parturition. Which requires the release of :-
(1) Oxytocin from mother pituitary
(2) Oxytocin from foetal pituitary
(3) Relaxin from placenta
(4) Estrogen from placenta
13. Which set of hormone stimulates erythropoiesis?
(1) Thyroxine, Cortisol, Aldosterone
(2) Thyroxine, Cortisol, TCT
(3) Cortisol, Adrenaline, Aldosterone
(4) Erythropoietin, Cortisol, thyroxine
14. Which hormone stimulates secretion of pancreatic enzymes and bile juice ?
(1) Gastrin
(2) CCK
(3) Secretin
(4) GIP
15. Which of the following is not related with hyperglycemia ?
(1) Glucagon
(2) Cortisol
(3) Growth hormone
(4) Thyrocalcitonin
16. Name the pair of hormone which reduces the cellular uptake & utilisation of free fatty acid and amino acid:-
(1) Growth hormone & Thyroxine
(2) Thyroxine & cortisole
(3) Cortisole & Adrenaline
(4) Adrenaline & insulin
17. Read the following four statements (A-D) :-
(A) All the four chambers of heart are in relaxed state
(B) Tricuspid and Bicuspid valves are open
(C) Blood from the pulmonary veins and vena cava flows into the left and the right ventricle respectively through the left and right atria
(D) The semilunar valves are closed
18. How many statements are correct about joint Diastole ?
(1) Two
(2) Three
(3) Four
(4) One
19. In old age, immune system becomes weak due to gradual degeneration of :
(1) Pineal gland
(2) Parathyroid gland
(3) Thymus gland
(4) Adrenal gland
20. Both adrenalin and cortisol are secreted in response to stress. Which of the following statement is also true for both of these hormones
(1) They act to increase blood glucose
(2) They are secreted by adrenal cortex
(3) Their secretion is stimulated by adreno corticotropin
(4) They are secreted into the blood with in seconds of the onset of stress
21. Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilization.
(1) Secretin
(2) Gastrin
(3) Insulin
(4) Glucagon
22. Area of most active vision in eye where clear image is formed is called :-
(1) Blind spot
(2) Yellow spot
(3) Lens
(4) Pupil
23. The crista found in _____ which are responsible for _____ balance :-
(1) Utriculus, kinetic
(2) Succulus, kinetic
(3) Ampulla, kinetic
(4) Utriculus, static
24. Arrangement of ear ossicles, starting from ear drum is :-
(1) Stapes, malleus, incus
(2) Malleus, incus, stapes
(3) Incus, stapes, malleus
(4) Stapes, incus, malleus
25. Find out the correct combination :-
(a) Auditory receptor (i) Crista ampullaris
(b) Projecting ridge (ii) Earpinna
(c) CaCO crystals (iii) Hair cell
(d) Sebaceous gland (iv) Macula
(1) a – iii, b – iv, c – ii, d – i
(2) a – i, b – iv, c – ii, d – iii
(3) a – iv, b – ii, c – i, d – iii
(4) a – iii, b – i, c – iv, d – ii
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