Brightwell_ShelbyAnn Test Skin

Question 1

1. How does the skin help regulate body temperature?

Answer 1

By enabling excess heat to escape from the body (23. Notes - Homeostasis)

Question 2

6. What is one of the things found in the hypodermis?

Answer 2

Nerve (20. CLF - Skin)

Question 3

28. Positive feedback mechanisms are:

Answer 3

More rare then negative feedback mechanisms and tend to increase the original stimulus (19. BP - Homeostasis)

Question 4

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

Answer 4

Antidiuretic (23. Notes - Homeostasis)

Question 5

30. In your body the type of feedback that happens daily is

Answer 5

Not positive or negative (19. BP - Homeostasis)

Question 6

31. For a new cell to move from the basal layer to the top of the epidermis it takes approximately

Answer 6

2 weeks (27. BP - Skin)

Question 7

35. You have a new epidermis after

Answer 7

3-5 weeks (27. BP - Skin)

Question 8

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

Answer 8

Sweat would cool the body as it is evaporated. (23. Notes - Homeostasis)

Question 9

49. How many atoms of hydrogen are in hydrogen peroxide?

Answer 9

4 (26. Lab - Enzymes and Temperature)

Question 10

51. Sweat glands

Answer 10

Aid in cooling the body (20. CLF - Skin)

Question 11

54. Which organelles release chemicals that break down large food particles into smaller ones?

Answer 11

Lysosomes (25. Lab - Edible Cell)

Question 12

61. What might happen if your respiratory center malfunction?

Answer 12

The oxygen level in your blood might go out of balance. (23. Notes - Homeostasis)

Question 13

62. Which of the following will help cool the body?

Answer 13

Evaporation of sweat from the skin surface. (23. Notes - Homeostasis)

Question 14

65. High fever during an illness part of which feedback?

Answer 14

Positive (19. BP - Homeostasis)

Question 15

71. How many layers of skin cells are found in the epidermis?

Answer 15

5 (20. CLF - Skin)

Question 16

85. What is an example of positive feedback?

Answer 16

A woman nursing a baby. (19. BP - Homeostasis)

Question 17

89. The independent variable in our experiment with the lab – enzymes and temperature was

Answer 17

Water temperature (26. Lab - Enzymes and Temperature)

Question 18

98. Fat is one ________ type of tissue.

Answer 18

Connective (17. Notes - Histology)

Question 19

103. What is the function of the organelle that surrounds the nucleus?

Answer 19

Endoplasmic Reticulum distributes protein. (25. Lab - Edible Cell)

Question 20

104. What is the function of the organelle that is similar to the endoplasmic reticulum?

Answer 20

Golgi body packages and distributes protein. (25. Lab - Edible Cell)

Question 21

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

Answer 21

Blood vessels in the skin contract to decrease the amount of blood that flows through them. This allows heat to stay inside the body. Sweat glands in the skin reduce perspiration to none. Hairs on the skin stand up because the arrector pili muscle has contracted which produces goose bumps on the skin, reducing skin surface area.

Blood vessels in the skin enlarge to increase the amount of blood that flows through them. This allows heat to move from the body into the outside environment. Sweat glands in the skin produce perspiration. As the perspiration evaporates it carries heat into the air. Hairs on the body lie flat. Skin smoothes out and allows heat out. (23. Notes - Homeostasis)