McNew_Evan Test Skin

Question 1

3. How does the skin help regulate body temperature

Answer 1

By enable excess heat to escape from the body

23. Notes - Homeostasis

Question 2

14. On the skin diagram, what is the middle layer of the skin diagram

Answer 2

Dermis

20. Skin Diagram

Question 3

26. Whan body temperature becomes abnormally high, thermoregulatory homeostasis is maintained by

Answer 3

An increase in blood flow and a increase in sweat glands

23. Notes - Homeostasis

Question 4

30. When the arrector pili contract

Answer 4

You get goose bumps

23. Notes - Homeostasis

Question 5

37. The independent variable in our experiment with the Lab- Enzymes and Temperature was

Answer 5

Water Temperature

26: Lab - Enzymes and temperature

Question 6

38. Light-skinned races such as Caucasians have

Answer 6

About the amount of melanocytes as a darker race

27. BP - skin

Question 7

43. The dependent variable in our experiment is illustrated by the

Answer 7

the height of the column of bubbles

26: Lab - Enzymes and temperature

Question 8

47. The bundle of smooth muscles that associated with the hair follicles is called

Answer 8

Arrector pili

20. Skin Diagram

Question 9

59. Place the following in order from innermost of outermost A) Dermis B) Epidermis C) Hypodermis

Answer 9

C, A, B

20. Skin Diagram

Question 10

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

Answer 10

Germs can enter through cuts and scrapes

27. BP - skin

Question 11

68. What would happen if the core body temperature was too low

Answer 11

Sweat would dry up

27. BP - skin

Question 12

71. What might happen if your respiratory system malfunctioned

Answer 12

The oxygen level in your blood might go out of balance

23. Notes - Homeostasis

Question 13

73. Place the following in sequence: A) nerves and hormones communicate with hypothalamus B) you sweat C) Your body begins overheating

Answer 13

C, A, B

23. Notes - Homeostasis

Question 14

75. Prolactin production is encouraged in what type of feedback

Answer 14

Positive

23. Notes - Homeostasis

Question 15

88. Positive feedback control mechanism are:

Answer 15

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

23. Notes - Homeostasis

Question 16

2(H2 O2) -> O2 + 2(H2 O)

90. In the formula above, how many atoms of hydrogen are in hydrogen peroxide

Answer 16

4

26: Lab - Enzymes and temperature

Question 17

95. Which organelle releases chemicals that break down large food particles into smaller ones

Answer 17

Lysosomes

25. Lab - Edible Cell

Question 18

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

Answer 18

Diet

23. Notes - Homeostasis

Question 19

99. Limiting sun exposure helps prevent the skin ___________, a disease in which cells divide uncontrollably

Answer 19

Cancer

23. Notes - Homeostasis

Question 20

103. Identify structure A and describe its function (Golgi Body)

Answer 20

A is the Golgi body, it takes proteins and repackages them, then sends it off to where it is needed

25. Lab - Edible Cell

Question 21

104. Identify structure C and describe its function (endoplasmic reticulum)

Answer 21

The endoplasmic reticulum carries and transports proteins

Question 22

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

Answer 22

The skin helps regulate your body with many things. The hair on your skin will stand up if you are to cold and lay down if you are too hot. You will sweat if you are too hot and your sweat glands will not operate if you are too cold. Your blood vessels will tighten if you are to cold and enlarge if you are too hot.