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3rd Period Renfroe_Riley Science > Renfroe_Riley Test - Skin, Homeostasis and More > Flashcards

Renfroe_Riley Test - Skin, Homeostasis and More Flashcards

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Biology 101 flashcards
1
Q
  1. How does the skin help regulate body temperature?
A

by enabling excess heat to escape from the body

  1. WKST - Skin notability
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2
Q
  1. Where are new cells made?
A

epidermis

  1. CLF - SKIN Diagram notability
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3
Q
  1. What is right next to the hair follicle?
A

Cortex

  1. CLF - SKIN Diagram notability
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4
Q
  1. Where are nerves and blood vessels in the skin located?
A

dermis

  1. CLF - SKIN Diagram
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5
Q 
21. Which of the following doesn't belong with the others?
lipase
amylase
hydrogen peroxidase
lactase
catalase
hydrogen peroxide
A

hydrogen peroxide

  1. Lab - Enzymes and Temperature notability
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6
Q 
22. Catalase is NOT a/an 
chemical
enzyme
pigment
catalyst
protein
all of these describe catalase
A

pigment

  1. Lab - Enzymes and Temperature notability
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7
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

  1. WKST - Skin notability
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8
Q 
27. Which of the following doesn't belong with the others? (hint - What do they measure?)
thermometer
pipette 
10 ml graduated cylinder 
250 ml beaker
A

thermometer

  1. Lab - Enzymes and Temperature notability
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9
Q

What is the hormone that signals the kidneys to regulate the amount of water in the body?

A

antidieuritc

  1. Notes - Homeostasis notability
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10
Q
  1. When the body temperature becomes abnormally high, thermoregulatory homeostasis is maintain by what?
A

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

  1. Notes - Homeostasis notability
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11
Q

What do sweat glands do?

A

aid in cooling the body

  1. CLF - SKIN Diagram notability
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12
Q
  1. What is the protein that helps protect the skin and underlying tissue?
A

keratin

  1. Notes - Homeostasis notability
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13
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 to high?
A

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

  1. Notes - Homeostasis notability
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14
Q
  1. Which of the following will help cool the body?
    decreased blood flow to the skin
    absorption of excess sweat
    evaporation of sweat from the skin’s surface
    absorptions of ultraviolet light rays by the skin
A

evaporation of sweat from the skin’s surface

  1. Notes - Homeostasis notability
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15
Q
  1. prolactin production is encouraged in what type of feedback?
A

positive feedback

  1. Notes - Homeostasis notability
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16
Q
  1. How many layers of skin cells are found in the epidermis?
A

5

  1. CLF - SKIN Diagram notability
17
Q
  1. The forehead, eyelids, and the shin are missing which layer of skin?
A

subcutaneous tissue

  1. BP - Skin notability
18
Q 
85. Which of these illustrates an example of positive feedback?
blood vessels dilating and you sweat 
urine production
a woman nursing a baby
a dog panting in the hot sun
A

a woman nursing a baby

  1. Notes - Homeostasis notability
19
Q
  1. What do light skinned races such as Caucasians have?
A

approximately the same number of melanocytes as races with darker skins.

  1. BP - Skin notability
20
Q
  1. Your dead skin cells make up what percentage of the dust in your house?
A

80%

  1. BP - Skin notability
21
Q
  1. Fat is one type of what tissue?
A

connective tissue

  1. Notes - Histology notability
22
Q
  1. What is the layer of skin that contains nerves and blood vessels?
A

dermis

  1. CLF - SKIN Diagram notability
23
Q
  1. Describe how skin helps maintain body temperature if a person becomes too warm AND too cold.
A

If a person is too warm-
sweat is produced. sweat glands produce the sweat. Also the hairs on your skin lie flat. When a person is too hot, their blood vessels widen

When a person is too cold-
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 arrector pili muscle has contracted which produces goose bumps on the skin reducing skin surface area.

  1. Notes - Homeostasis notability

3rd Period Renfroe_Riley Science (24 decks)

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