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WorksheetsExcretion
Total questions: 13
Worksheet time: 7mins
The amount of urea in the blood increases as it passes through organ X.
What is organ X?
hear
kidney
liver
pancreas
The table shows the composition of blood entering and leaving the liver and the kidneys.
Which row is correct?
A
B
C
D
How do the concentrations of glucose and urea in urine compare to their concentrations in blood
plasma?
A
B
C
D
What structure is involved in ultrafiltration?
efferent arteriole
Loop of Henle
glomerulus
collecting duct
Which row describes the urine produced by a person who is exercising on a hot day?
A
B
C
D
Which of the following is the structure where reabsorption of glucose and amino acid happens?
proximal convoluted tubules
distal convoluted tubules
Loop of Henle
collecting duct
What is urea produced from?
fatty acids
glucose
amino acids
glycerol
Which row of the table below correctly displays the correct roles of the following organs in processing waste in the human body?
A
B
C
D
To remain healthy, a person must be able to excrete a number waste products produced as a result of metabolism. A list of excretory products is given below. Which would be lost from both the kidneys and lungs?
Water
Carbon dioxide
Glucose
Urea
Which of the following is a correct example of excretion in mammals?
The production of carbon dioxide from aerobic respiration
The removal of excess salts from the blood
The removal of undigested food from the anus
The release of hormones from glands
Which of the following is not a main function of the kidneys in a healthy person?
To reabsorb all glucose
To regulate blood pressure
To breakdown toxins
To eliminate excess sodium and potassium ions
Which part of the nephron is responsible for selective reabsorption?
1 & 4
1 & 2
2
3
Composition of blood entering kidney are as follows: Glucose 0.20 %, Urea 0.01, protein 7%. Which row of the table below show the percentage composition of blood of the same substance in the urine of a healthy person?
A
B
C
D
