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Practice MCQ Questions and answers on Biology-GK

Learn and practice General Knowledge questions and answers on Biology with very easy and understandable explanations. GK questions are very helpful different type of competitive exams. Page-2 section-12

Each section contains 100 MCQs on Biology .
11
The artificial kidney is a
Discuss
Answer & Solution
Answer: Option B
Solution:
The artificial kidney is a machine.
12
With reference to the work of human kidney consider the following statements
1. After the waste is removed in the kidney the clean blood is sent back through renal artery.
2. From Bowman's capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.
Which of these statements is/are correct?
Discuss
Answer & Solution
Answer: Option B
Solution:
From Bowman's capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein is the correct statement.
13
Which of the following function is performed by the kidneys in the human body?
Discuss
Answer & Solution
Answer: Option A
Solution:
Most people know that a major function of the kidneys is to remove waste products and excess fluid from the body. These waste products and excess fluid are removed through the urine. The production of urine involves highly complex steps of excretion and re-absorption.
14
Which one is located at the rear of the abdominal cavity?
Discuss
Answer & Solution
Answer: Option B
Solution:
The abdominal cavity is lined with a protective membrane termed the peritoneum. The inside wall is covered by the parietal peritoneum. The kidneys are located behind the peritoneum, in the retroperitoneum, outside the abdominal cavity.
15
Urea is transported through
Discuss
Answer & Solution
Answer: Option C
Solution:
Urea is the product of excess amino acids. It is transported into blood plasma by the liver and removed by the kidney. This process is called excretion.
16
The main function of Henle's loop is
Discuss
Answer & Solution
Answer: Option D
Solution:
The principal function of the loop of Henle is in the recovery of water and sodium chloride from urine.
17
The ultimate cause of water movement in a plant stem against gravity is
Discuss
Answer & Solution
Answer: Option C
Solution:
The ultimate cause of water movement in a plant stem against gravity is transpiration.
18
They protect plants from water loss and abrasive damage.
Discuss
Answer & Solution
Answer: Option B
Solution:
Waxes protect plants from water loss and abrasive damage.
19
The suitable conditions in which the rate of evaporation occurs more fastly are
Discuss
Answer & Solution
Answer: Option C
Solution:
The suitable conditions in which the rate of evaporation occurs more fastly are low humidity and high temperature.
20
The device to measure transpiration in plants is
Discuss
Answer & Solution
Answer: Option C
Solution:
A potometer, sometimes known as transpirometer, is a device used for measuring the rate of water uptake of a leafy shoot which is almost equal to the water lost through transpiration.