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Test on the topic “Skin”

in Biology
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Test on the topic “Skin”
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1.  The skin protects the underlying organs and tissues from damage because it

A – it is strong and elastic

B – maintains the stability of the internal environment of the body

C) is waterproof

 D, contains a lot of receptors

2. Skin takes part in metabolism because

A – it contains receptors

B – it removes metabolic products through it

C – it is strong and resilient

D – it synthesizes vitamin D.

3.  Skin protects the body from ultraviolet rays because it

A – it has a lot of fibers

B – it has subcutaneous fatty tissue

C – it has receptors

D – vitamin D is produced 

4. The epidermis is formed by

A – muscle tissue

B – epithelial tissue

C – nerve tissue

D – connective tissue

5. Epidermis is located

A – on the surface of the skin

B – under the skin proper

C – at the surface of subcutaneous fatty tissue

D – under subcutaneous fatty tissue

6. Skin surface contains dead horny cells which

A – participate in skin division

B – participate in skin nutrition

C – protect the skin

D – Participates in sweat production

7. The skin itself is formed by

A – muscular tissue

B – epithelial tissue

C – nervous tissue

D – connective tissue

8. Skin itself

A – forms keratinized cells

B – makes the skin supple

C – holds back ultraviolet rays

D – keeps liquids and gases out

9. Grease is produced by

A – sweat glands

B – sebaceous glands

C – receptors

D – lymphatic vessels

10. Salts, water, and urea are removed by

A – receptors 

B – hair pouches 

C – sebaceous glands 

D – sweat glands

11. Fat secreted by the sebaceous glands,

A – removes urea

B – removes excess water

C – makes the skin soft and not wet

D – protects the body from hypothermia

12. Subcutaneous fatty tissue

A – makes the skin supple

B – softens the skin

C – takes part in sweating

D – protects the body from cold, bruises

13. Sweat glands are involved in

A – oxidation of minerals

B – body cooling

C – accumulation of organic substances

D – removal of organic substances

14. Wounds on the surface of the skin are treated with iodine to avoid

A – ingress of soil into wounds,

B – ingress of microorganisms

C – blood loss

D – pain

15. Clean skin is the most important condition for human health because dirt

A – promotes excessive sweating 

B – breaks the surface of the skin

C – clogs the ducts of sebaceous and sweat glands 

D – facilitates penetration of toxic substances into the skin.

16. The normal temperature of the human body is 

A – 41 °С 

B – 36-37 °С 

C – 35 ° C 

D – 37-38°С

17. When the ambient temperature drops, skin vessels

A – they get narrower, more blood flows to the skin. 

B – they expand, more blood flows to the skin

 C – they narrow, less blood gets to the skin

 D – they dilate, less blood flows to the skin

18. As ambient temperature rises, skin vessels

A – they dilate, less blood flows to the skin 

B – they contract, less blood flows to the skin

C – they narrow, more blood flows to the skin 

D – they expand, more blood goes to skin

19. Dilation of skin vessels

A – decreases heat transfer 

B – changes body temperature 

C – increases heat production 

D – does not affect the heat loss

20. Narrowing of skin vessels

A – does not affect the heat loss

 B – decreases heat transfer 

C – increases heat dissipation 

D – changes the body temperature

Answers

1. А

2. B

3. D

4. B

5. А

6. C

7. D

8. B

9. B

10. D

11. C

12. D

13. B

14. B

15. C

16. B

17. C

18. D

19. C

20. B

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