Excretion Flashcards

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1
Q

Define Excretion

A

Its the process in which the waste is released from the body in the right amount

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2
Q

Give examples of Catabolic and Anabolic activities

A

Catabolic: Tissue Respiration, Deamination of proteins and amino acids to form urea.
Anabolic: Formation of new protoplasm from amino acids, Glucose>Glycogen in liver and muscles

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3
Q

Explain catabolic and anabolic activities in terms of molecular breaking and forming

A

In catabolic activities, the breakdown of molecules is done (complex>simple) whereas in anabolic, the formation of molecules is done (simple>complex)

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4
Q

What does metabolic activity produce?

A

It produces waste products that must me removed

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5
Q

Differentiate between Egestion and Excretion

A

Egestion: Removal of undigested waste from alimentary canal, matter egested is feces and the organs involved are: anus and sometimes the mouth
Excretion: Metabolic waste products and toxic materials are removed from the organs (sweat), matter excreted is sweat, urine and carbon dioxide and the organs involved are: the urethra, skin or the mouth

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6
Q

State the main components of the mammalian urinary system

A

-Pair of kidneys
-Pair of ureter
-Urethra

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7
Q

State the points about the location of the Kidneys

A

-Pair of kidneys
-Abdominal cavity
-Each side of vertebral column
-Lies above waist line
-Left kidney is higher than the right

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8
Q

State the points about the structure of the kidney

A

-Outer-dark region> Cortex
-Inner region> Medulla
-16-20 number of Pyramids
-Origin of ureter> Renal Pelvis
-Depression in kidney> Hilus

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9
Q

State the functions of the kidney

A

-Removing urea
-Excess salts and water from blood

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10
Q

State the structure of nephron

A

-Renal corpuscle>Glomerulus & Bowman’s Capsule
-Renal tubules>Proximal convoluted tubule, Loop of Henle & Distal convoluted tubule

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