Human System Solved MCQs.

 

1. Which of the following pairs is/are correctly matched?
Gland Hormones
1. Pituitary Follicle stimulating hormone
2. Thyroid Somatotropic hormone
3. Parathyroid Thyroxin
(a) 1 only
(b) 1 and 2
(c) 3 only
(d) 1, 2 and 3

2.Wisdom teeth normally grow during the age of:
(a) 12-15 years (b) 17-30 years
(c) 34-40 years (d) 40-45 years

3. Short sightedness is due to:
(a) Shifting of the (b) Weaker muscles iris
(c) Elongation of (d) Weakening of the eye balls retina

4. Alzheimer’s disease in human beings is characterized by the degeneration of:
(a) Kidney cells (b) Nerve cells
(c) Brain cells (d) Liver cells

5. Which is a small conical gland like structure of unknown function found in the brain of vertebrates?
(a) Cerebellum (b) Medulla
(c) Pineal body (d) Pleura body

6. The yellow color of urine is due to the presence of:
(a) Bile
(b) Lymph
(c) Cholesterol
(d) Urochrome. Consider the following statements about antigens:

1. They induce the formation of antibodies.
2. They provide immunity
3. They are formed only within the body
of these statements, the correct ones are:
(a) 1 and 2
(b) 2 and 3
(c) 1 and 3
(d) 1, 2 and 3

8. Which of the following is essential for blood clotting?
(a) RBC
(b) WBC
(c) Blood platelets
(d) Lymph

9. The tooth with three roots is:
(a) Molar
(b) Pre-molar
(c) Incisor
(d) Canine

10. In mammals, the part of the brain that has reached highest level of development and that has enabled humans to grow their own crop Invent machines, develop language and art is:
(a) Cerebrum
(b) Cerebellum
(c) Medulla oblongata
(d) None of these

11. Which of the following is not a gland?

(a) Stomach
(b) Liver
(c) Kidney
(d) Pancreas

12. A person will have brown eyes, blue eyes or black eyes depending upon the particular pigment present in the:
(a) Pupil
(b) Cornea
(c) Iris
(d) Choroid

13. A gas first enters into the blood and then leaves it by the process of:
(a) Diffusion (b) Osmosis
(c) Transpiration (d) Condensation

14. A color blind person has difficulty is distinguishing between which colors?
(a)Black and Blue          (b) Green and Violet
(c) White and Yellow   (d) Green and Red. Match the following:

A. Shoulder & hip
1.Ball and socket joints
B. Ankle, knee & elbow joints
2. Hinge joints
C. Toe bones
3. Ellipsold joints
D. Bones in palm
4. Gliding joints
A B C D
A B C D
(a) 1 2 3 4 (b) 1 3 4 2
(c) 2 4 3 1 (d) 2 1 4 3

16. Reflex action in the body is controlled by:
(a) Sensory nerves
(b) Central nervous system
(c) Motor nerves
(d) sympathetic nervous system

17. Which is the maximum limit of sound intensity In decibel units beyond which a person cannot hear?
(a) 50
(b) 70
(c) 85
(d) 95

18. Which of the following glands is situated beneath the brain and whose over-secretion produces giant-size children?
(a) Pituitary
(b) Thyroid
(c) Adrenal
(d) Pancreas

19. There are approximately muscles In human body.
(a) 200
(b) 350
(c) 500
(d) 700. The organ which destroys worn out RBCs in the body of a vertebrate is:

(a) Pancreas
(b) Liver
(c) Bone marrow
(d) Spleen. A person born with Inner ear missing:

(a) Would never be able to hear sound
(b) Could only hear a loud explosion
(c) Would be able to hear only with an electronic hearing aid
(d) None of these

22. Which of the following is a membrane that protects the developing embryo from
desiccation?
(a) Amnion
(b) Alantois
(c) Chorion
(d) Yolk sac

23. Reflex action is the function of:
(a) Cerebellum
(b) Spinal cord
(c) Medulla
(d) Autonomous nervous system. Which of the following combinations of chromosomes is present in males?

(a) XX
(b) XXX
(c) XY
(d) XYX

25. The saliva helps in the digestion of:
(a) Proteins
(b) Fats
(c) Fibers
(d) Starch. Detection of Rh factor is an example of:

(a) Enzymatic reaction
(b) Chemical reaction
(c) Phagocytic reaction
(d) Immunologic reaction. Inside the body, blood does not coagulate due to the presence of:

(a) Fibrin
(b) Hemoglobin
(c) Heparin
(d) Thromboplastic

28. Biological death of a patient means death of tissues of the:
(a) Kidney
(b) Heart
(c) Lungs
(d) Brain. Radial Karatomy, a surgical procedure, is used to cure:

(a) Cataract
(b) Myopla
(c) Astigmatism
(d) Hyper metropia

30. Lymph vessels of human beings are inhabited by:
(a) Plasmodium  (b) Tape worm
(c) Wuchereria (d) Euglena

31. The pitch of the voice of women is generally:

(a) Same as that of men
(b) Higher than that of men
(c) Much lower than that of men
(d) None of these

32. During the development of an embryo, the formation of brain marks the beginning of organ formation. Eye in a vertebrate develops from
mid brain. If after the formation of brain, the mid brain is destroyed, then what will be the resultant effect?
(a) Total failure of eye formation
(b) Development of a single eye
(c) Defective development of eyes
(d) Absence of vision in the eyes

33. The normal temperature of human body on the Kelvin scale is:
(a) 280
(b) 290
(c) 300
(d) 310. Clotting of blood vessels is called:

(a) Thrombosis
(b) Rheumatism
(c) Agglutination
(d) Fibrosis

35. Blood group of an individual is controlled by:
(a) Shape of RBC
(b) Shape of WBC
(c) Genes
(d) Hemoglobin

36. Which of the following forms are Irreversible complex with hemoglobin of blood?

(a) Carbonb) Carbon dioxide monoxide

(c) Pure nitrogen gas
(d) A mixture of carbon dioxide

37. Estrogens are secreted by:______
(a) Follicle cells  (b) Ovary
(c) Germinal     (d) Stroma epithelium

38. Lungs are situated in:
(a) Buccal cavity
(b) Pericardial cavity
(c) Thoracic
(d) Abdominal cavity cavity

39. If father has blood group A and mother has blood group o, then which of the following blood groups may be found in their son?
(a) O
(6) B
(c) AB
(d) B, AB

40. If one chews an unsweetened chapatti for a short time, a distinctly sweetish taste becomes noticeable because:
(a) Carbohydrate is converted into sugar in the mouth
(b) Protein is converted into sugar in the mouth
(c) Fat is converted into sugar in the mouth
(d) Vitamins are converted into sugar in the mouth

41. Why do two eyes give better vision than one?
(a) Because two lenses together impart a higher converging power so that a sharp image is formed on the retina
(b) Because two eyes do not form exactly similar images and the fusion of these two dissimilar images in the brain gives the three dimensional or stereoscopic vision
(c) Because both the eyes are connected by nerves to the brain and hence transmit the message more quickly to the brain
(d) None of these

 42.Which of the following hormones contains lodine?

(a) Adrenaline      (b) Insulin
(c) Testosterone  (d)Thyroxin. Respiratory center is situated in:

(a) Cerebrum  (b) Cerebellum
(c) Medulla       (d) Diencephalon oblongata

44. During sleep, the man’s blood pressure:
(a) Decreases (b) Increases
(c) Fluctuates (d) Remains constant

45. Red-Green color blindness In man is known as:
(a) Protanopla      (b) Deuteranopla
(c) Both (a) & (b)  (d) Marfan’s syndrome

46. A person with AB blood group is sometimes called a universal recipient because of the:
(a) Presence of antibodies in his blood
(b) Lack of antibodies in his blood
(c) Lack of antigen ‘in his blood
(d) Lack of both antigens and antibodies in his blood

47. The correct sequence of passage of air through the respiratory tract during respiration is:
(a) Nostril, Nasal cavity, Pharynx, Larynx, Trachea, Bronchi, Bronchioles, Alveoli
(b) Nostril, Nasal cavity. Bronchioles, Bronchi, Larynx, Pharynx, Trachea, Alveoli
(c) Nostril, Nasal cavity. Larynx, Pharynx, Trachea, Bronchi, Bronchioles, Alveoli
(d) Nostril, Nasal cavity, Larynx, Pharynx, Bronchi, Trachea, Bronchioles, Alveoli

48. The number of factors required for blood clotting is:
(a) 7
(b) 11
(c) 13
(d) 15

49. S-A node in the heart is also known as:
(a) Pace-maker         (b) Pace settler
(c) Pace regulator   (d) Pace coordinator

50. The pH of human blood is between:
(a) 6.5 -7
(b) 7.5-8
(c) 8-9
(d) 4.5 -5