Kohn_alex Test - Skin Flashcards Preview

7th Period kohn_alex science > Kohn_alex Test - Skin > Flashcards

Flashcards in Kohn_alex Test - Skin Deck (32):
1

For a cell to move from the basal layer to top layer of the epidermis takes approximately

2 weeks

Notes - 28. WKST - The Skin

2

How many layers of skin cells are found in the epidermis

5

Notes - 28. WKST - The Skin

3

How does the skin help regulate body temperature

By enabling excess heat to escape from the body

Notes - 28. WKST - The Skin

4

Sweat glands

Aid in cooling the body

Notes - 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets)

5

Which of the following is NOT a function of the fibers of the dermis?

Immunization

Notes - 27. BP - Skin

6

Which of the following will help cool the body?

Evaporation of sweat from the skin's surface

Notes - 28. WKST - The Skin

7

Catalase is NOT a/an

Pigment

Notes - 26. Lab - Enzymes and Temperature

8

The protein that helps protect the skin and underlying tissue is

Keratin

Notes - 28. WKST - The Skin

9

Light - skinned races such as Caucasians have

Approximately the same number of melanocytes as races with darker skins

Notes - 27. BP - Skin

10

How many hydrogen peroxide molecules are there in the above equation

2

Notes - 26. Lab - Enzymes and Temperature

11

The bundle of smooth muscles associated with hair follicles is called

Arrector pili

Notes - 20. CLF Skin Diagram

12

How does the skin protect the body from disease?

By keeping disease-causing microorganisms from entering the body

Notes - 27. BP - Skin

13

How does your body make new skin?

Through the division of existing skin cells

Notes - 28. WKST - The Skin

14

The forehead, eyelids and the shin are missing which layer of skin?

Subcutaneous tissue

Notes - 28. WKST - The Skin

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15

What can you conclude from the fact that your skin prevents harmful germs from entering your body?

Germs can enter your body through cuts and scrapes

Notes - 28. WKST - The Skin

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16

What are the two fibers of the dermis?

Collagen and Elastin

Notes - 27. BP - Skin

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17

What would NOT happen if the core body temperature was too low?

Sweat would cool the body as it evaporated

Notes - 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets)

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18

What might happen if your respiratory center malfunctioned?

The oxygen level in your blood might go out of balance

Notes - 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets)

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19

Place the following events in sequence A) nerves and hormones communicate with your hypothalamus B) you begin sweating, C) your body begins overheating

C,A,B

Notes - 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets)

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20

Normal hair contains approximately 20% O2 and 0.5% CO2. When a human inhales, we absorb and use some of the oxygen we breathe in. Our metabolism converts that oxygen to carbon dioxide, which we exhale, or outgas, without properly functioning lungs, what would occur?

Homeostasis would not be maintained

Notes - 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets)

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21

Prolactin production is encouraged in what type of feedback?

Positive

Notes - 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets)

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22

Mary has finished eating a large meal. Her blood is being flooded with sugar from this meal. How does her body prevent her blood sugar from going too high?

Her pancreas will secrete insulin. Insulin will cause the sugar to convert to glycogen to be stored in the liver...

Notes - 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets)

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23

No matter what what the temperature of the air around you, your internal body temperature will be close to

98.6 F

Notes - 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets)

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24

The hormone that signals the kidneys to regulate the amount of water in the body is

Antidieuritc

Notes - 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets)

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25

Positive feedback control mechanisms are:

More rare than negative feedback mechanisms and tend to increase the original stimulus

Notes- 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets)

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26

In the formula above, what chemicals are present?

Hydrogen peroxide, oxygen, water

Notes - 26. Lab - Enzymes and Temperature

27

A healthy _______ provides the raw materials and energy necessary for healthy skin.

Diet

Notes - 27. BP - Skin

28

Skin cells produce ______ , which helps the digestive system absorb calcium.

Vitamin D

Notes - 28. WKST - The Skin

29

Fat is one type of _____ tissue

Connective

Notes - 09. CLF Hierarchy of the Body

30

Identify structure A and describe its function.

The Golgi body receives proteins from the endoplasmic reticulum and then stores them.

Notes - 22. CLF - Skin 2

31

Identify structure C and describe its function.

The endoplasmic reticulum sends proteins to the Golgi body.

Notes - 22. CLF - Skin 2

32

Describe how skin helps maintain body temperature if a person becomes cold/warm.

If the body temperature becomes warm arrector pili muscle relax and your hair follicles will produce sweat from the sweat glands. The blood will flow more quickly too. If your body Temperature becomes cold your arrector pili muscle will contract and your hairs will straighten. Your blood will not flow as fast. Also your pores will close.

Notes - 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets)

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