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Bio quiz 1.2-2.2 > 1.6 > Flashcards

1.6 Flashcards

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Biology 101 flashcards
1
Q

What are the 7 properties of all living things?

A

Macromolecules
Composed of 1 or more cells
Growth and metabolism
Hereditary material (DNA)
Reproduction
Evolve
Homeostasis

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2
Q

What are the 4 basic elements that every living thing is made up of?

A

Carbon
Oxygen
Nitrogen
Hydrogen

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3
Q

Are viruses considered living things?

A

No

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4
Q

Metabolism involves the production of energy through what form?

A

ATP

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5
Q

What is the hereditary material in all living things?

A

DNA

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6
Q

How many chromosomes do humans have?

A

46

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7
Q

State if the following are internal or external:
Mouth
Blood
Interstitial fluid
Ear canal
Stomach

A

External
Internal
Internal
external
external

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8
Q

What are the components of a negative feedback loop?

A

Stimulus
Receptors
Integrating centre
Effector(s)
Response

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9
Q

What do TACTILE receptors detect?

A

Touch, Pressure, Vibration

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10
Q

What receptors detect blood pressure?

A

Baroreceptors

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11
Q

What receptors detect water and ions?

A

osmoreceptors

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12
Q

Nociceptors detect what?

A

Pain

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13
Q

Freda ate chocolate cake and glucose entered her bloodstream through the digestive tract consuming sugar simulates the hormone ___ and tells her liver to convert excess sugar into ___ In this sceneario the stimulus is the ____ and the effector is the _____.

A

Insulin
Fat
Glucose
Pancreas

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14
Q

If homeostasis cannot be maintained for a short time then you will have symptoms, but if
homeostasis cannot be maintained at all, such as being unable to regulate blood sugar, then you
will have a _______

A

Disease

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15
Q

The integrating center for temperature regulation is what?

A

Hypothalamus

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16
Q

What is the normal body temp?

A

37 C

17
Q

When your body temp drops below normal what is an effector that will help increase your body temp?

A

Muscles shivering

18
Q

What is an example of a positive feedback loop?

A

Childbirth

19
Q

What receptors would detect uterine contractions?

A

Mechano recptors

20
Q

What hormone cause uterine contractions?

A

Oxytocin

Bio quiz 1.2-2.2 (2 decks)

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