Petersson_Stina Test- Skin Flashcards Preview

1st period Petersson_Stina Science > Petersson_Stina Test- Skin > Flashcards

Flashcards in Petersson_Stina Test- Skin Deck (52):
1

3. How does the skin help regulate the body temperature?

By enabling excess heat to escape from the body.


Notability pg, 26

2

4. Area of the body where the epidermis is thickest is

Palms of hands and soles of feet


Notability, pg. 27
BrainPOP, skin

3

5. Skin is NOT made of which of the following tissues?

Smooth

Notability, pg. 27
BrainPOP, skin

4

10. On the skin diagram #13 is pointed to

Sweat gland



Notability pg 20

5

15. On the skin diagram #8 is pointed to a type of..

Nerve



Notability, pg. 20

6

16. On the skin diagram #10 is pointed to

Sebaceous gland



Notability, pg 20

7

19. On the skin diagram #11 is pointed to

Arrector pili muscle



Notability, pg. 20

8

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

Evaporation of sweat from the skin's surface

Notability, pg .27
BrainPOP, skin

9

26. When the body temperature becomes abnormally high, thermoregulathory homeostasis is maintained by:

An increase in sweat gland activity and an increase in blood flow to the skin

Notability, pg. 23
Think bank

10

27. Catalase is NOT a/an

Pigment


Notability, pg 26

11

31. The protein that helps protect the skin and underlying tissue is

Keratin



Notability, pg. 20

12

36. Where are sebaceous glands found in the skin?

Dermis


Notability, pg. 20

13

40. The pigment melanin in the skin functions to..

Help protect the skin from sunburn



Notability, pg. 28

14

42. 2HO2(1) ---> O2(g) + 2H2O(1)
How many hydrogen peroxide molecules are there in the above equation?

2


Notability, pg. 26

15

44. Nerves and blood vessels in the skin are located in the..

Sebaceous bundle


Notability, pg. 20

16

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

Height of column of bubbles


Notability, pg.26

17

48. How does the skin protect the body from disease?

By keeping disease-causing microorganisms from entering the body


Notability, pg. 28

18

51. What might happen if you did not have melanocytes?

Your skin would be extremely pale

Notability, pg. 20

19

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

Subcutaneous tissue

Notability, pg .26
BrainPOP, skin

20

58. Which of the following doesn't belong with the others?

Hydrogen peroxide


Notability, pg. 26

21

61. 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

Think bank

22

63. What are the two fibers in the dermis?

None of these (Collagen and Elastin, Sebum and Melanocytes, Collagen and Sebum )


Brain Pop, skin

23

64. Which of the following animals is homeothermic?

Cat


Think bank

24

65. Which of these is an example of positive feedback?

A pregnant woman experiencing contractions


Notability, pg. 23

25

67. Which of these illustrates an example of positive feedback?

A woman nursing a baby



Notability, pg. 23

26

70. The process by which an organism's internal environment is kept stable in spite of changes in the external environment is called..

Homeostasis


Notability, pg. 19

27

71. What might happen if your respiratory center malfunctioned?

The oxygen level in your blood might go out of balance


BrainPOP, skin

28

72. What might happen if you didn't run a fever when you get sick?

You wouldn't fight off the infection as efficiently as it could


YouTube, Marathon video

29

73. Place the following events in sequence:
A) Nerves and hormones communicate with hypothalamus
B) You begin sweating,
C) Your body begins overheating

C, A, B


Think bank
Notability, pg. 23

30

74. Normal air 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 be maintained?

Homeostasis would not be maintained


Notability, pg. 19
BrainPOP, homeostasis

31

75. Prolactin production is encouraged in what type of feedback?

Positive


Notability, pg. 23

32

76. High fever during an illness is part o which feedback?

Positive

Notability, pg. 23

33

77. Shivering and sweating are two responses in which feedback?

Negative

Notability, pg. 23

34

80. 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..

Notability, pg. 23

35

83. The contractions experienced by women in labor are often very painful. Yet the body's feedback system encourages them to continue. Why?

Though painful, the contractions help woman give birth


Notability, pg. 23

36

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

Antidiuretic



iBooks, pg. 642, kidneys

37

88. Positive feedback control mechanisms are:

More rare then negative mechanisms and tend to increase the original stimulus



Notability. Pg. 23

38

90. 2HO2(1) ----> O2(g) + 2H2O(1)
In the formula above, how many atoms of hydrogen peroxide?

4


Notability, pg. 26

39

91. Which organelle is the control center of the cell?

Nucleus


Notability, pg. 25

40

92. Which of the following best describes the function of Mitochondria?

They convert energy from food molecules into energy the cell can use


Notability, pg 25

41

93. Enzymes are important because they...

Speed up chemical reactions



Notability, pg. 26

42

94. Which organelles store food and other materials needed by the cell?

Vacuoles

Notability, pg. 25

43

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

Lysosomes


Notability, pg. 25

44

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

Diet

Notability, pg. 23

45

97. The layer of an that contains nerves and blood vessels is the_______.

Dermis

Notability, pg. 20

46

98. Skin cells produce _________, which help the digestive system absorb calcium

Vitamin D


Notability, pg.28

47

99. Limiting sun exposure helps to prevent skin ______, a disease in which cells divides uncontrollably

Cancer


Notability, pg.28

48

100. A color substance called __________ helps to protect prod skin from burning.

Melanin


Notability, page 28

49

101. Fat is a type of _______ tissue

Connective


Notability, pg. 17

50

103. Identify structure A and describe its function.

Golgli body Packages/distributes proteins


Notability, pg. 25

51

104. Identify structure C and describe its function

Endoplasmic Reticulum transports proteins


Notability, pg. 25

52

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

Blood vessels in the skin constrict 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 är rector 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 eat into the air . Hair on the body lie flat. Skin smoothes out to allow heat out.


Think bank