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Q:

Which one of the following statements regarding haemoglobin is correct?

A) Haemoglobin present in RBC can carry only oxygen but not carbon dioxide B) Haemoglobin of RBC can carry both oxygen and carbon dioxide
C) Haemoglobin of RBC can carry only carbon dioxide D) Haemoglobin is only used for blood clotting and not for carrying gases.

Answer:   B) Haemoglobin of RBC can carry both oxygen and carbon dioxide



Explanation:

During respiration, about 97% of oxygen is transported by Red Blood Cells in blood and the remaining 3% gets dissolved in the plasma.Around 20-25% of carbon dioxide is carried by haemoglobin as carbamino-haemoglobin.

Oxygen enters the blood from the lungs and carbon dioxide is expelled out of the blood into the lungs. The blood serves to transport both gases. Oxygen is carried to the cells. Carbon dioxide is carried away from the cells.

Subject: Biology
Exam Prep: Bank Exams
Q:

All respiratory equipment must be approved byl  

A) RPSEC B) OSHA
C) NIOSH D) CDC
 
Answer & Explanation Answer: C) NIOSH

Explanation:

The National Institute for Occupational Safety and Health (NIOSH) will approve all respiratory equipment.

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0 16
Q:

Which of the following hormones has intracellular receptors?

 

A) cortisol. B) insulin.
C) epinephrine. D) none
 
Answer & Explanation Answer: A) cortisol.

Explanation:
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0 15
Q:

Lipids that are solid at room temperature are known as

A) Oils B) Steroids
C) Fats D) Triglyceroids
 
Answer & Explanation Answer: C) Fats

Explanation:

Lipids are molecules that contain hydrocarbons and make up the building blocks of the structure and function of living cells.

 

Examples of lipids include fats, oils, waxes,...

 

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2 108
Q:

Visceral fat is stored chiefly ____.​

A) within subcutaneous adipocytes B) around the thighs and neck
C) around the abdominal organs D) within the liver and spleen 
 
Answer & Explanation Answer: C) around the abdominal organs

Explanation:
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3 819
Q:

The most active phagocytic cells among the leukocytes are

A) neutrophils and monocytes B) monocytes and lymphocytes
C) basophils and eosinophils D) lymphocytes and neutrophils
 
Answer & Explanation Answer: A) neutrophils and monocytes

Explanation:

The most active phagocytic cells among the leukocytes (White Blood Cells) are neutrophils and monocytes.

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0 98
Q:

Among the components of the dermis are:

a. sweat glands

b. hair follicles

c. collagen fibers

d. sensory- nerve endings

e. arrestor pill muscles

A) a, b, d B) a, b, c, d, e
C) a, b, c, e D) a, c, d
 
Answer & Explanation Answer: B) a, b, c, d, e

Explanation:

The dermis is a layer of the skin of the integumentary system. The dermis lies deep to the superficial epidermis which is also the most superficial layer of the skin. The dermis lies superficial to the underlying hypodermis which is also referred to as subcutaneous tissue.

Among the components of the dermis are: sweat glands, hair follicles, collagen fibers, sensory- nerve endings and arrestor pill muscles.

 

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1 41
Q:

What is regulated by the sphincter muscle in the stomach?

A) Exit of the food from the stomach   B) Entry of food in the stomach  
C) Mixing of food in the stomach   D) Exit of food from the large intestine
 
Answer & Explanation Answer: A) Exit of the food from the stomach  

Explanation:
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0 72
Q:

What genes are mutated to cause cancer?

A) TNF B) TP53
C) TGFBI D) MTHFR
 
Answer & Explanation Answer: B) TP53

Explanation:
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