Homeostatic control of blood sugar levels Flashcards

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1
Q

What does glucose do for cells

A

It fuels cellular respiration

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2
Q

What is blood sugar levels

A

Amount of glucose in the bloodstream

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3
Q

What is low blood sugar

A

not enough glucose in the blood

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4
Q

What happens when glucose levels drop

A

cells will not get enough glucose to maintain the rate of cellular respiration

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5
Q

what is high blood sugar

A

glucose will draw water out of the cells via osmosis

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6
Q

What is homeostasis

A

maintenance of a constant internal environment of an organism

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7
Q

What is an example of homeostasis

A

The regulation of blood sugar levels in organisms

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8
Q

What do hormones do

A

Keep blood sugar levels stable by using a system of negative feedback

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9
Q

What corrects the imbalance of blood sugar levels

A

hormones

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10
Q

Which hormones work antagonistically to control glucose in the bloodstream?

A

Glucagon + Insulin

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11
Q

Which accessory organ produces Glucagon and insulin

A

pancreas

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12
Q

What connects the stomach to the duodenum

A

pancreatic duct

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13
Q

which gland secretes digestive juices into the pancreas

A

exocrine gland

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14
Q

What are the specialised cells that form the endocrine glands

A

Islets of Langerhans

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15
Q

What are the 2 types of cells of the islets of Langerhans

A

Alpha cells and Beta cells

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16
Q

What do alpha cells secrete

A

Glucagon

17
Q

What do beta cells secrete

A

insulin

18
Q

When blood sugar levels are too high what is secreted

A

Insulin

19
Q

What is secreted when blood sugar levels is below normal

A

glucagon

20
Q

what is the function of Glucagon

A

prompt the liver to break down glycogen into glucose and release glucose into the bloodstream

21
Q

what is the function of insulin

A

removes glucose from the bloodstream by converting it to glycogen