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

Petersson_Stina Test- Skin Flashcards

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1
Q
  1. How does the skin help regulate the body temperature?
A

By enabling excess heat to escape from the body.

Notability pg, 26

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2
Q
  1. Area of the body where the epidermis is thickest is
A

Palms of hands and soles of feet

Notability, pg. 27
BrainPOP, skin

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3
Q
  1. Skin is NOT made of which of the following tissues?
A

Smooth

Notability, pg. 27
BrainPOP, skin

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4
Q
  1. On the skin diagram #13 is pointed to
A

Sweat gland

Notability pg 20

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5
Q
  1. On the skin diagram #8 is pointed to a type of..
A

Nerve

Notability, pg. 20

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6
Q
  1. On the skin diagram #10 is pointed to
A

Sebaceous gland

Notability, pg 20

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7
Q
  1. On the skin diagram #11 is pointed to
A

Arrector pili muscle

Notability, pg. 20

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8
Q
  1. Which of the following will help cool the body?
A

Evaporation of sweat from the skin’s surface

Notability, pg .27
BrainPOP, skin

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9
Q
  1. When the body temperature becomes abnormally high, thermoregulathory homeostasis is maintained by:
A

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

Notability, pg. 23
Think bank

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10
Q
  1. Catalase is NOT a/an
A

Pigment

Notability, pg 26

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11
Q
  1. The protein that helps protect the skin and underlying tissue is
A

Keratin

Notability, pg. 20

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12
Q
  1. Where are sebaceous glands found in the skin?
A

Dermis

Notability, pg. 20

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13
Q
  1. The pigment melanin in the skin functions to..
A

Help protect the skin from sunburn

Notability, pg. 28

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14
Q
  1. 2HO2(1) —> O2(g) + 2H2O(1)

How many hydrogen peroxide molecules are there in the above equation?

A

2

Notability, pg. 26

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15
Q
  1. Nerves and blood vessels in the skin are located in the..
A

Sebaceous bundle

Notability, pg. 20

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16
Q
  1. The dependent variable in our experiment is illustrated by the
A

Height of column of bubbles

Notability, pg.26

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17
Q
  1. How does the skin protect the body from disease?
A

By keeping disease-causing microorganisms from entering the body

Notability, pg. 28

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18
Q
  1. What might happen if you did not have melanocytes?
A

Your skin would be extremely pale

Notability, pg. 20

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19
Q
  1. The forehead, eyelids and the shin are missing which layer of skin?
A

Subcutaneous tissue

Notability, pg .26
BrainPOP, skin

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20
Q
  1. Which of the following doesn’t belong with the others?
A

Hydrogen peroxide

Notability, pg. 26

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21
Q
  1. What can you conclude from the fact that your skin prevents harmful germs from entering your body?
A

Germs can enter your body through cuts and scrapes

Think bank

22
Q
  1. What are the two fibers in the dermis?
A

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

Brain Pop, skin

23
Q
  1. Which of the following animals is homeothermic?
A

Cat

Think bank

24
Q
  1. Which of these is an example of positive feedback?
A

A pregnant woman experiencing contractions

Notability, pg. 23

25
Q
  1. Which of these illustrates an example of positive feedback?
A

A woman nursing a baby

Notability, pg. 23

26
Q
  1. The process by which an organism’s internal environment is kept stable in spite of changes in the external environment is called..
A

Homeostasis

Notability, pg. 19

27
Q
  1. What might happen if your respiratory center malfunctioned?
A

The oxygen level in your blood might go out of balance

BrainPOP, skin

28
Q
  1. What might happen if you didn’t run a fever when you get sick?
A

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

YouTube, Marathon video

29
Q
  1. Place the following events in sequence:
    A) Nerves and hormones communicate with hypothalamus
    B) You begin sweating,
    C) Your body begins overheating
A

C, A, B

Think bank
Notability, pg. 23

30
Q
  1. 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?
A

Homeostasis would not be maintained

Notability, pg. 19
BrainPOP, homeostasis

31
Q
  1. Prolactin production is encouraged in what type of feedback?
A

Positive

Notability, pg. 23

32
Q
  1. High fever during an illness is part o which feedback?
A

Positive

Notability, pg. 23

33
Q
  1. Shivering and sweating are two responses in which feedback?
A

Negative

Notability, pg. 23

34
Q
  1. 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?
A

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

Notability, pg. 23

35
Q
  1. The contractions experienced by women in labor are often very painful. Yet the body’s feedback system encourages them to continue. Why?
A

Though painful, the contractions help woman give birth

Notability, pg. 23

36
Q
  1. The hormone that signals the kidneys to regulate the amount of water in the body is.
A

Antidiuretic

iBooks, pg. 642, kidneys

37
Q
  1. Positive feedback control mechanisms are:
A

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

Notability. Pg. 23

38
Q
  1. 2HO2(1) —-> O2(g) + 2H2O(1)

In the formula above, how many atoms of hydrogen peroxide?

A

4

Notability, pg. 26

39
Q
  1. Which organelle is the control center of the cell?
A

Nucleus

Notability, pg. 25

40
Q
  1. Which of the following best describes the function of Mitochondria?
A

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

Notability, pg 25

41
Q
  1. Enzymes are important because they…
A

Speed up chemical reactions

Notability, pg. 26

42
Q
  1. Which organelles store food and other materials needed by the cell?
A

Vacuoles

Notability, pg. 25

43
Q
  1. Which organelles release chemicals that break down large food particles into smaller ones?
A

Lysosomes

Notability, pg. 25

44
Q
  1. A healthy _______ provides the raw materials and energy necessary for healthy skin
A

Diet

Notability, pg. 23

45
Q
  1. The layer of an that contains nerves and blood vessels is the_______.
A

Dermis

Notability, pg. 20

46
Q
  1. Skin cells produce _________, which help the digestive system absorb calcium
A

Vitamin D

Notability, pg.28

47
Q
  1. Limiting sun exposure helps to prevent skin ______, a disease in which cells divides uncontrollably
A

Cancer

Notability, pg.28

48
Q
  1. A color substance called __________ helps to protect prod skin from burning.
A

Melanin

Notability, page 28

49
Q
  1. Fat is a type of _______ tissue
A

Connective

Notability, pg. 17

50
Q
  1. Identify structure A and describe its function.
A

Golgli body Packages/distributes proteins

Notability, pg. 25

51
Q
  1. Identify structure C and describe its function
A

Endoplasmic Reticulum transports proteins

Notability, pg. 25

52
Q
  1. Describe how skin helps maintain body temperature if a person becomes cold/warm
A

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

1st period Petersson_Stina Science (25 decks)

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