Explain the term excretion - Leaving Cert Biology - Question d - 2021
Question d
Explain the term excretion.
The diagram shows the human urinary system.
Name the parts labelled A, B, C.
Name two substances excreted by part A.
Give the function... show full transcript
Worked Solution & Example Answer:Explain the term excretion - Leaving Cert Biology - Question d - 2021
Step 1
Explain the term excretion.
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Answer
Excretion is the biological process of removing waste products of metabolism from the body. These waste products can include excess salts, urea, and water, which are generated from cellular activities and chemical reactions within the body.
Step 2
Name the parts labelled A, B, C.
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Answer
A: Kidney
B: Ureter
C: Bladder
Step 3
Name two substances excreted by part A.
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Answer
Excess water
Urea
Step 4
Give the function of the part labelled C.
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Answer
The function of the bladder is to store urine until it is ready to be expelled from the body.
Step 5
Name the region of part A in which each of the following takes place: 1. Filtration.
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Answer
Filtration takes place in the cortex of the kidney.
Step 6
Name the region of part A in which each of the following takes place: 2. Reabsorption.
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Answer
Reabsorption occurs in both the cortex and medulla of the kidney.
Step 7
Give the function of the urethra.
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Answer
The function of the urethra is to transport urine out of the bladder or out of the body.
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