Kohn_alex Test - Skin

Question 1

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

Answer 1

2 weeks

Notes - 28. WKST - The Skin

Question 2

How many layers of skin cells are found in the epidermis

Answer 2

5

Notes - 28. WKST - The Skin

Question 3

How does the skin help regulate body temperature

Answer 3

By enabling excess heat to escape from the body

Notes - 28. WKST - The Skin

Question 4

Sweat glands

Answer 4

Aid in cooling the body

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

Question 5

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

Answer 5

Immunization

Notes - 27. BP - Skin

Question 6

Which of the following will help cool the body?

Answer 6

Evaporation of sweat from the skin’s surface

Notes - 28. WKST - The Skin

Question 7

Catalase is NOT a/an

Answer 7

Pigment

Notes - 26. Lab - Enzymes and Temperature

Question 8

The protein that helps protect the skin and underlying tissue is

Answer 8

Keratin

Notes - 28. WKST - The Skin

Question 9

Light - skinned races such as Caucasians have

Answer 9

Approximately the same number of melanocytes as races with darker skins

Notes - 27. BP - Skin

Question 10

How many hydrogen peroxide molecules are there in the above equation

Answer 10

2

Notes - 26. Lab - Enzymes and Temperature

Question 11

The bundle of smooth muscles associated with hair follicles is called

Answer 11

Arrector pili

Notes - 20. CLF Skin Diagram

Question 12

How does the skin protect the body from disease?

Answer 12

By keeping disease-causing microorganisms from entering the body

Notes - 27. BP - Skin

Question 13

How does your body make new skin?

Answer 13

Through the division of existing skin cells

Notes - 28. WKST - The Skin

Question 14

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

Answer 14

Subcutaneous tissue

Notes - 28. WKST - The Skin

iBooks

Question 15

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

Answer 15

Germs can enter your body through cuts and scrapes

Notes - 28. WKST - The Skin

iBooks

Question 16

What are the two fibers of the dermis?

Answer 16

Collagen and Elastin

Notes - 27. BP - Skin

iBooks

Question 17

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

Answer 17

Sweat would cool the body as it evaporated

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

iBooks

Question 18

What might happen if your respiratory center malfunctioned?

Answer 18

The oxygen level in your blood might go out of balance

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

iBooks- homeostasis

Question 19

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

Answer 19

C,A,B

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

iBooks- homeostasis

Question 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?

Answer 20

Homeostasis would not be maintained

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

iBooks - homeostasis

Question 21

Prolactin production is encouraged in what type of feedback?

Answer 21

Positive

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

iBooks- homeostasis

Question 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?

Answer 22

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)

iBooks- homeostasis

Question 23

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

Answer 23

98.6 F

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

iBooks- homeostasis

Question 24

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

Answer 24

Antidieuritc

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

iBooks- homeostasis

Question 25

Positive feedback control mechanisms are:

Answer 25

More rare than negative feedback mechanisms and tend to increase the original stimulus Notes- 23. Notes - Homeostasis (iBook, marathon movie, Biosnippets) iBooks - homeostasis

Question 26

In the formula above, what chemicals are present?

Answer 26

Hydrogen peroxide, oxygen, water Notes - 26. Lab - Enzymes and Temperature

Question 27

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

Answer 27

Diet Notes - 27. BP - Skin

Question 28

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

Answer 28

Vitamin D Notes - 28. WKST - The Skin

Question 29

Fat is one type of _____ tissue

Answer 29

Connective Notes - 09. CLF Hierarchy of the Body

Question 30

Identify structure A and describe its function.

Answer 30

The Golgi body receives proteins from the endoplasmic reticulum and then stores them. Notes - 22. CLF - Skin 2

Question 31

Identify structure C and describe its function.

Answer 31

The endoplasmic reticulum sends proteins to the Golgi body. Notes - 22. CLF - Skin 2

Question 32

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

Answer 32

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) iBooks- homeostasis