
JCW'S G9 U13 QUIZ 2023-2025 CIE

Quiz
•
Biology
•
9th - 12th Grade
•
Medium

Jack Williams
Used 5+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the basic structural unit of a Kidney?
Nephros
Nephron
Nephra
Nephrit
Answer explanation
The filtering unit of a kidney. Consisting of several parts, with the 2 significant ones being the Glomerulus and the Tubules.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many nephrons are there in one kidney?
10,000,000
500,000
1,000,000
100,000
Answer explanation
There's around 1million nephrons per kidney.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is not an example of excretion?
Sweating
Urinating
Exhaling
Egesting
Answer explanation
Egesting is not the same as Excreting. Egesting is the removal of undigested food, or faeces.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is Urine made of in a healthy person?
Water, Urea, Uric Acid, Salts/Minerals
Urea, Salt/Minerals, Uric Acid, Mucus
Mineral Ions, Glucose, Water, Urea, Oxygen
Red Blood Cells, Water, Potassium, Mineral Ions, Urea
Answer explanation
Water, Urea, Uric Acid, Salts are the constituents of Urine.
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
The bed of capillaries where filtration takes place in the Nephron is called a _________.
Answer explanation
The bed of capillaries within the nephron is called a Glomerulus. This is where the filtration of blood takes place, where substances pass into the tubule system of the nephron.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these is true about ultrafiltration
All of the salts are re-absorbed back into the blood when passing through the tubule system.
In a healthy person, all of the glucose is reabsorbed back into the blood when passing through the tubule system.
A diabetic person is more capable of reabsorbing their glucose.
Drinking larger amounts of water will increase your blood pressure and ultrafiltration rate.
Answer explanation
Glucose is a useful carbohydrate, monosaccharide. The body usually selectively reabsorbs all glucose in order to use it in respiration. If it is not used immediately, then it is linked to form Glycogen or converted into fatty acids in the Liver. These molecules are then used as a longer-term energy store.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is false?
The liver is the main site in the body of assimilating amino acids, turning them into proteins.
The liver is capable of deaminating excess amino acids, turning them into DNA.
The liver is responsible for the deamination of excess amino acids, turning them into ammonia and then Urea.
The liver produces bile salts which are later secreted in order to emulsify fats to aid in digestion.
Answer explanation
Deamination is the removal of an amino group (NH2) from an amino acid. Deaminases are enzymes responsible for doing this. This forms ammonia which is a toxic alkaline.
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