Science Olympiad Miscellaneous Worksheet-7

Science Olympiad Miscellaneous Worksheet-7

1. Voice box is the name given to the

(a) Larynx         (b) Trachea       (c) Pharynx       (d) oral cavity

2. Which of the following helps in digestion?

(a) Pancreatic juice                      (b) Saliva

(c) Bile                                            (d) All of these

3. Food descends from the mouth to the stomach through the

(a) Esophagus                               (b) Larynx

(c) small intestine                        (d) trachea

4. Larger dust particles in the inhaled air are trapped in the

(a) Nose             (b) Pharynx       (c) Epiglottis     (d) larynx

5. Gastric juice is secreted by

(a) Stomach                                   (b) Liver

(c) small intestine                        (d) Pancreas

6. 'C' shaped rings of cartilage are present in the

(a) Trachea       (b) Esophagus  (c) Ureter          (d) Intestines

7. What is the name of the sac-like structure which stores urine?

(a) Urinary Bladder                     (b) Ureter

(c) Kidney                                      (d) Stomach

8. What type are teeth 1 and 2 in the following diagram?

(a) Incisor         (b) Canine         (c) Molar           (d) Premolar

9. What type is tooth 3 in the following diagram?

(a) Canine         (b) Incisor         (c) Molar           (d) Premolar

10. What type are teeth 4 and 5 in the following diagram?

(a) Canine         (b) Molar           (c) Premolar     (d) Incisor

11. What type are teeth 6, 7 and 8 in the following diagram?

(a) Canine         (b) Incisor         (c) Premolar     (d) Molar

12. Pulse rate in a healthy adult man is _______ beats / minute. (at rest)

(a) 62-66           (b) 72-78           (c) 86-90           (d) 90-94

13. Normal blood pressure (BP) in a 25-year-old man is _______ mm Hg.

(a) 120/80        (b) 100/60        (c) 140/90         (d) 170/100

14. Which of the following statement is not true?

(a) All veins carry deoxygenated blood.

(b) Veins contain valves.

(c) Veins are thin-walled.

(d) Veins return blood from the various parts of the body to the heart.

15. Identify the blood vessel 'A' in the given diagram.

(a) Aorta                                         (b) Pulmonary artery

(c) Inferior vena cava                  (d) Carotid artery

16. Which blood vessels carry blood from heart to various parts of the body?

(a) Veins            (b) Capillaries  (c) Arteries        (d) All of these

17. Sphygmomanometer is an instrument used to record

(a) Blood pressure                       (b) Respiratory rate

(c) Heart rate                                (d) Electrical activity of heart

18. This statement is not true regarding hemoglobin:

(a) Percentage of hemoglobin in a healthy young man is 10/12 gm%.

(b) Hemoglobin carries oxygen.

(c) Hemoglobin is found in RBCs.

(d) Hemoglobin deficiency leads to anemia.

19. This statement is true regarding platelets:

(a) Platelets do not contain nucleus.

(b) Platelets contain many nuclei.

(c) Platelets contain single nucleus.

(d) Platelets contain an ill-defined nucleus.

20. Identify the blood vessel 'D' in the given diagram.

(a) Pulmonary Trunk                  (b) Aorta

(c) Inferior vena cava                  (d) Superior vena cava

21. This statement is not true:

(a) Right ventricle pumps blood to various parts of the body.

(b) Valves are present between auricles and ventricles to prevent backflow of blood.

(c) Pulmonary veins carry oxygenated blood.

(d) Left side of the heart contains oxygenated blood.

22. Which of these does not cause an increase in pulse rate?

(a) Sleep            (b) Exercise      (c) Fever            (d) Anxiety

23. Due to presence of _______, back flow of blood is prevented in veins.

(a) Valves          (b) Septa            (c) Thick walls  (d) Arteries

Answer Key:

(1)-(a); (2)-(d); (3)-(a); (4)-(a); (5)-(a); (6)-(a); (7)-(a); (8)-(a); (9)-(a); (10)-(c); (11)-(d); (12)-(b); (13)-(a); (14)-(a); (15)-(a); (16)-(c); (17)-(a); (18)-(a); (19)-(a); (20)-(a); (21)-(a); (22)-(a); (23)-(a)