Test - Skin, Homeostasis And More Flashcards

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1
Q
1. For a cell to move from the basal layer to the top of the epidermis takes approximately
•3 - 5 weeks
•2 weeks
•3 weeks
• 6 weeks or more
A

2 weeks

Notes 27. BP - Skin

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2
Q
2. How many layers of skin cells are found in the epidermis?
•billions
•1 billion
•5
•none of these
A

5

Notes 27 BP - Skin

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3
Q
17. On the Skin Diagram #3 is pointing to (the layer beneath the dermis)
•epidermis 
•hypodermis
•dermis
•subcutaneous  tissue
A

Hypodermis and subcutaneous Tissue

Notes 20. CLF - Skin Diagram

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4
Q
22. Which of the following is not a function of the fibers of the dermis?
•structure
•elasticity 
•immunization 
•strength
A

Immunization

Notes 28. WKST - Skin

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5
Q
23. Which one of the following is not primary function of the skin?
•temperature regulation 
•response to stimuli 
•vitamin B production
•Protection
A

Vitamin B production

Notes 28. WKST - skin

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6
Q
  1. When the body temperature becomes abnormally high, thermoregulatory homeostasis is maintained by
    •an increase in blood flow to the skin and a decrease in sweat gland activity .
    •an decrease in blood flow to the skin and a decrease in sweat gland activity.
    •an increase in blood flow to the skin and an increase in sweat gland activity.
    • an decrease in blood flow to the skin and a increase in sweat gland activity .
A

an increase in blood flow to the skin and an increase in sweat gland activity.
Notes 23. Homeostasis

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7
Q
27. Catalase is not a 
•protein
•catalyst 
•chemical 
•enzyme 
•pigment 
•all of the above
A

Pigment

Notes 25. Lab - Enzyme and Temperature

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8
Q
  1. When the arrector poli muscles contract
    •the hair on your arms and legs begins to curl
    •goosebumps begin to form on your skin
    •the body is able to lose heat
    •no change is noted on the skin surface
    •the sweat glands empty their contents onto the surface of the skin.
A

The body is able to lose heat

Notes 23. Homeostasis

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9
Q
  1. What can you conclude from the fact that your skin prevents harmful germs from entering your body?
    •wearing heavy clothes will protect you from most diseases
    •germs can enter your body through cuts and scrapes
    •without skin, your immune system wouldn’t function
    •your skin cells contain powerful antibiotics
A

Germs can enter your body through cuts and scrapes

Notes 28. WKST - Skin

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10
Q
62. Your dead skin cells make up what percentage of the dust in your house?
•50%
•30%
•80%
•90%
A

80%

Notes 27. BP - Skin

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11
Q
  1. What would not happen if the core body temperature was too low?
    •shivering would release energy by muscle contraction
    •there would be reduced blood flow through the skin capillaries
    •sweat would cool the skin as it evaporates
    •hair arrector muscles would contract
A

Sweat would cool the body as it evaporates

Notes 23. Notes - Homeostasis

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12
Q
76. High fever during an illness is part of which feedback?
•static
•negative
•stasis
•positive
A

Positive

Notes 23. Notes - Homeostasis

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13
Q
  1. 2H2O2(1) -> 02 + 2H20(1)
    What chemicals are present in the formula above?
    •glucose, glycogen, oxygen
    •hydrogen peroxide, oxygen, water
    •hydrogen Peroxide, glucose, carbon dioxide
    •glucose, oxygen, water
A

Hydrogen Peroxide, oxygen, water

Notes 23. Notes - Homeostasis

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14
Q
  1. Skin cells produce _______________ which helps the digestive system absorb calcium.
A

Vitamin D

Notes 28. WKST - Skin

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15
Q
  1. Fat is one type of ____________ tissue.
A

Connective

Notes 17. Notes - Histology

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16
Q
  1. Describe how skin helps maintain body temperature if a person becomes hot or cold.
A

Blood vessels in the skin constricts to decrease the amount of blood that flows through them. This allows heat to stay in 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 goosebumps on the skin reducing the surface area.
Notes 23. Notes - Homeostasis

17
Q
  1. Identify structure C and describe its functions.

Structure that surrounds the Nucleus

A

The Endoplasmic Reticulum transports proteins.

Notes 18. Notes - Cell organelle Video