Class 10th

1. Respiration is an (a) anabolic process (b) catabolic process (c) none (d) both

2. Which of the following comes first while deglutition :
(A) larynx (b) Phayrnx (c) bronchi (d) Alveoli

3. Alveoli is the finger like structure found in
(A) larynx (b) pharynx (c) bronchi (d) lungs

4. Breathing is:
(A) inhalation (b) exhalation (c) both (d) None

5. Breathing centre located in which part of brain
( A) Medulla oblongata (b) cerebellum (c) vermis (d) None

6.  Nutrition includes the study of: 
(A) the organism's food   (B) process of digestion (C) the way an organism obtains food  (D)all of the above

7.       Amoeba feeds with the help of:
(A) tentacles (B) pseudopodia (C)food vacuole (D)none of the above

8.       Parotid gland is a /an:
(A) gastric gland (B) intestinal gland (C) salivary gland (D) none of the above

9.       An enzyme that acts only in an acidic medium is:
(A) pepsin (B) trypsin (C) rennin (D) amylase

10.       A non-enzyme protein present in the saliva is:
(A) heparin (B) mucin (C) ptyalin (D) none of the above

11.        Absorption is maximum in the small intestine because of: 
(A) the presence of villi (B) its length (C) its thin walls (D) all the above

12.       Pyloric valve is present in the: 
(A) heart (B) liver (C) stomach (D) intestine

13.       Mastication is :
(A) digestion (B) absorption (C) assimilation (D) chewing

14.   In the mouth the food is formed into :
(A) chyme (B) chyle (C) bolus (D) pellets

15.   Appendix is a part of:
(A) ileum (B) duodenum (C) caecum (D) colon

16.   Bile juice is secreted by :
(A) liver (B) pancreas (C) salivary gland (D) intestine

17.   Bile juice is: 
(A) alkaline (B) acidic (C) neutral (D) near acidic

18.   The three portions of the small intestine, in the correct order, are :
(A) caecum, colon, rectum (B) ileum, duodenum, jejunum (C) colon, caecum, rectum (D) duodenum, jejunum, ileum

19.   Which of the following are chiefly digested in the stomach? 
(A) carbohydrates (B) proteins (C) fats (D) lipids

20.   Large intestine in man mainly carries out :
(A) digestion of fats (B) absorption (C) assimilation (D) digestion of carbohydrates

21.   The part of the digestive system where no digestion takes place is: 
(A) mouth (B) oesophagus (C) ileum (D) stomach

22.   The largest gland of the body is: 
(A) parotid gland (B) liver (C) pancreas (D) submandibular gland

23.   The most common substrate of respiration is :
(A) fats (B) amino acids (C) glucose (D) sucrose

24.   Lowering of diaphragm results in :
(A) inspiration (B) expiration (C) it is not related to either (D) digestion

25.   The surface area of the gills increase due to the presence of :
(A) lamellae (B) alveoli (C) arches (D) slits

26.   Production of sound in man is due to the presence of : 
(A) cartilage rings (B) cilia (C) goblet cells (D) vocal cords

29.   Respiratory surface should be :
(A) permeable (B) thin (C) richly supplied with blood vessels (D) all the above

30.   The part of the respiratory tract that is responsible for keeping it healthy is :
(A) trachea (B) bronchi (C) nasal cavity (D) all the above

31.   Which of the following are the stages of respiration in the correct order? 
(A) gaseous transport, breathing, tissue respiration and cellular respiration 
(B) breathing, gaseous transport, tissue respiration and cellular respiration 
(C) breathing, gaseous transport, cellular respiration and tissue respiration 
(D) breathing, tissue respiration, cellular respiration and gaseous transport

32.   Epiglottis guards the entrance of :
(A) pharynx (B) wind pipe (C) bronchus (D) lungs

33.   The expired air differs from the inspired air in the following respects: 
(A) it contains more carbon dioxide (B) it contains less oxygen 
(C) it contains more water vapour (D) all the above

34.  Which structure separates thorax from abdomen? 
(A) lungs (B) heart (C) diaphragm (D) rib cage

35.   Which area of the brain controls the respiratory movements? 
(A) cerebrum (B) cerebellum (C) medulla oblongata (d) None

36.   Blood is composed of: 
(A) plasma and red blood cells (B) plasma and formed elements (C) red and white blood cells (D) red blood cells, white blood cells and platelets

37.   : __________ carries oxygenated blood. 
(A) pulmonary artery (B) hepatic portal vein (C) pulmonary vein (D) all of the above

38.   The threads formed during clotting are made up of :
(A) thrombin (B) prothrombin (C) fibrinogen (D) fibrin

39.   The double membraned structure surrounding the heart is called :
(A) plasmalemma (B) pleural membrane (C) tonoplast (D) pericardium

40.   An example of lymph gland is: 
(A) spleen (B) liver (C) tonsil (D) thyroid

41.   Human circulatory system is called double circulation because of :
(A) systemic and hepatic portal system (B) hepatic portal and pulmonary system 
(C) systemic and pulmonary circulation (D) none

42.   Thick muscular walls are present in :
(A) arteries (B) arterioles (C) veins (D) venules

43.   Diapedesis is shown by :
(A) RBC (B) WBC (C) platelets (D) a,b and c

44.   The normal blood pressure in man is :
(A) 80/120 mm Hg (B) 120/80 mm Hg (C) 120/100 mm Hg (D) 100/80 mm Hg

45.   The opening between the right auricle and the right ventricle is guarded by the :
(A) tricuspid valve (B) bicuspid valve (C) semi-lunar valve (D) none

46.   The blood vessel carrying blood from heart to the lungs is called :
(A) carotid artery (B) carotid vein (C) pulmonary artery (D) pulmonary vein

47.   Valves are present in :
(A) arteries (B) arterioles (C) veins (D) capillaries

48.   Deoxygenated blood is received by the :
(A) left auricle (B) right auricle (C) left ventricle (D) right ventricle

49.   Mitral valve is the other name for : 
(A) semilunar valve (B) bicuspid valve (C) tricuspid valve (D) venous valves

50.   Lacteals in the intestine take up :
(A) digested starch (B) digested fats (C) digested proteins (D) glucose