Human Body Worksheet-3

Human Body Worksheet-3

1. What is blood made of?

(a) Plasma and red blood cells

(b) Plasma, red blood cells, white blood cells and glycerin

(c) Basic juices, red blood cells, white blood cells and platelets

(d) Plasma, red blood cells, white blood cells and platelets

2. What chemical carries oxygen in the blood and where is it found?

(a) Hemoglobin. It is found in white blood cell.

(b) Hemoglobin. It is found in red blood cell.

(c) Antibody. It is found in white blood cell.

(d) Platelets. It is found in red blood cell.

3. What is the primary function of kidneys?

(a) Filter and clean digested food of wastes.

(b) Filter and clean blood of urea and other wastes.

(c) Produce red and white blood cells.

(d) Produce intestinal juices.

4. What is the main function of the respiratory system?

(a) Collect fresh air for the heart      

(b) Produce carbon dioxide for trees

(c) Obtain carbon dioxide from air for the blood

(d) Obtain oxygen from air for the blood

5. What does diaphragm do?

(a) Keeps lungs protected                   

(b) Cleans blood

(c) Helps lungs in pulling in and releasing out air

(d) Extracts carbon dioxide from air

6. What is the primary function of retina?

(a) Convert light waves into pressure signals.

(b) Convert light waves into nerve signals and send them to spinal cord.

(c) Convert the light rays into electrical impulses and send them to the brain through the optic nerve.

(d) Convert the sound waves into chemicals and send them to the brain through the optic nerve.

7. What is the stimulus of the auditory system?

(a) Pressure                                   (b) Sound

(c) Light                                          (d) Chemical compound

8. What is true about the odor particles?

(a) They float in the air.             

(b) They are very small but can be seen with naked eyes.

(c) They must enter our nose before we can detect a smell.

(d) They are always attached with oxygen molecules.

9. What is the name of the cell that detects the smell from odor particles?

(a) Nerve cells                               (b) Smell buds

(c) Olfactory bulb                         (d) X-cells

10. What is the name of the system that provides you all types of senses and processes the sensed information?

(a) Detective System                    (b) Cognitive System

(c) Sensor System                        (d) Nervous System

Answer Key:

(1)–(d); (2)–(b); (3)–(b); (4)–(d); (5)–(c); (6)–(c); (7)–(b); (8)–(d); (9)–(c); (10)–(d)