Excretion (Chapter 32) Flashcards

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0
Q

Secretion

A

Secretion is the production and release of chemicals from cells

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1
Q

Excretion

A

Excretion is the removal of waste products of metabolism from the body

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2
Q

What is filtered out it the blood in the outer Cortex

A

Small molecules like glucose, amino acids, water, urea and salts

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3
Q

What is reabsorbed back into blood from the tubules?

A

Urea, excess salts and water

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4
Q

What is secreted into the urine when blood becomes too acidic

A

Hydrogen ions

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5
Q

Ectotherm

A

Ectotherms gain or lose heat from or to their external environment

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6
Q

Endotherms

A

Endotherms generate their own heat from metabolic reactions

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7
Q

Nephron

A

Nephrons are the functional units of the kidney, they make urine.

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8
Q

Active Transport

A

Active Transport is the movement of molecules across a gradient from low concentration to high concentration. It requires energy.

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9
Q

What hormone is released if the blood plasma is too concentrated (not enough water in the plasma)

A

ADH (Anti-Diuretic Hormone)

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10
Q

ADH causes a (higher/lower) volume of urine to be produced

A

lower.

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