11. What is the function of systemic circulation?
- [A] oxygenated blood is pumped from the heart to every organ
- [B] carrying deoxygenated blood away from the heart
- [C] oxygenated blood is supplied to the heart
- [D] None of the above
A [oxygenated blood is pumped from the heart to every organ]
Notes:
Systemic circulation is another part of the circulation where oxygenated blood is pumped from the heart to every organ and tissue in the body, and deoxygenated blood returns to the heart again.
12. What are the major functions of the kidney?
- Maintains the body’s pH
- Reabsorption of nutrients
- Transporting oxygen and nutrients
- Removal of excess fluid from the body
Select the codes above:
[A] Only 1 and 2
[B] Only 2 and 3
[C] Only 1, 2 and 4
[D] 1,2.3 and 4
C [Only 1, 2 and 4]
Notes:
The major functions of the kidney are:
1. Maintains the pH of the body
2. Reabsorption of nutrients
3. Controls blood pressure
4. Excretion of waste from the body
5. Removal of excess fluid from the body
6. Secreted hormones that help in red blood cell production, acid regulation, etc.
Note: Transporting oxygen and nutrients to the lungs and tissues is a function of blood.
13. The human urinary bladder can hold up to ___ml of urine
[A] 400 ml
[B] 600 ml
[C] 800 ml
[D] 1000 ml
A [400 ml]
Notes:
A healthy human bladder can hold between 400 and 500 milliliters of urine or about 2 cups before reaching capacity.
14. Renin is released from juxtaglomerular (JG) cells when?
[A] blood flow in the glomerulus increases
[B] blood flow in the glomerulus decreases
[C] blood flow in the glomerulus remains neutral
[D] None of these
B [blood flow in the glomerulus decreases]
Notes:
Renin is released from juxtaglomerular (JG) cells when blood flow in the glomerulus decreases.
15. A series of wave-like muscle contractions that move food through the digestive tract called __
[A] Abduction movement
[B] Peristaltic movement
[C] Adduction movement
[D] Protraction movement
B [Peristaltic movement]
Notes:
A series of wave-like muscle contractions that move food through the digestive tract is called Peristaltic movement.
16. Which gland is considered as the third eye of the body or biological clock of the body?
[A] Pituitary gland
[B] Pineal gland
[C] Thyroid gland
[D] Adrenal gland
B [Pineal gland]
Notes:
The pineal gland is also known as the biological clock or third eye of the human body. It controls biological cycles like sleep-wake, breathing, heartbeat, etc.
17. Green Revolution related to which of the following?
[A] Milk
[B] Agriculture
[C] Water
[D] Animals
B [Agriculture]
Notes:
Green Revolution related to Agriculture. It took place between 1950-1960 and focused mainly on increasing agricultural production and started in Mexico.
18. The suicidal bags of the cell are ____:
[A] Ribosomes
[B] Lysosomes
[C] Phagosomes
[D] Dictyosomes
B [Lysosomes]
Notes:
Lysosomes are called the suicide bags of the cells they contain digestive enzymes, and break down food, cellular debris and foreign invaders like bacteria. When the cell is injured beyond repair, or becomes old, the lysosome digests the cell. So, it is called “suicide bag of the cell.”
19. The best milk breed in the world is ____:
[A] Chittagong
[B] Holstein-Friesian
[C] Deoni
[D] Sindhi
B [Holstein-Friesian]
Notes:
Holstein Friesian cows are world’s highest-production dairy animals and dominate the global dairy industry. These cows originated in Dutch provinces of North Holland and Friesland, and Schleswig-Holstein in Northern Germany. They are known as Holsteins in North America and Friesians in UK and Ireland.
20. In any water body, if there is high BOD value then it is generally ____:
[A] Very clean
[B] Highly productive
[C] Very polluted
[D] Highly unproductive
C [Very polluted]
Notes:
Biochemical Oxygen Demand or Biological Oxygen Demand, is a measurement of the amount of dissolved oxygen (DO) that is used by aerobic microorganisms when decomposing organic matter in water. It indicates the amount of putrescible organic matter present in water. Therefore, a low BOD is an indicator of good quality water, while a high BOD indicates polluted water.