Biology Questions

Q:

Which of the following statements about aldosterone is NOT correct?

A) Aldosterone increases sodium reabsorption by increasing the number of Na+-K+ ATPase pumps in the luminal membrane of the proximal tubule. B) Aldosterone is produced in the adrenal cortex.
C) Aldosterone is stimulated by decreased plasma sodium levels and increased plasma potassium levels. D) All of the above
 
Answer & Explanation Answer: A) Aldosterone increases sodium reabsorption by increasing the number of Na+-K+ ATPase pumps in the luminal membrane of the proximal tubule.

Explanation:

Aldosterone is a steroid hormone that is produced in the adrenal gland. It is useful and more essential for the conservation of sodium content in the kidney, salivary glands, colon and sweat glands.

 

Here, Aldosterone increases sodium reabsorption by increasing the number of Na+-K+ ATPase pumps in the luminal membrane of the proximal tubule is the only option that is NOT correct about aldosterone.

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Q:

Which part of the female reproductive system prepares itself every month to receive and nurture the growing child?

A) Ovary B) Uterus
C) Vagina D) Cervix
 
Answer & Explanation Answer: B) Uterus

Explanation:
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Q:

Innate immune system defenses include

A) phagocytosis B) B cells
C) plasma cells D) T cells
 
Answer & Explanation Answer: A) phagocytosis

Explanation:
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Q:

Nematodes and arthropods both

A) are suspension feeders B) have ciliated larvae
C) develop an anus from the blastopore (pore) formed in the gastrula stage D) grow by shedding their exoskeleton
 
Answer & Explanation Answer: D) grow by shedding their exoskeleton

Explanation:
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Q:

The process of bones increasing in width is known as

A) appositional growth B) concentric growth
C) closing of the epiphyseal plate D) long bones reaching adult length and width
 
Answer & Explanation Answer: A) appositional growth

Explanation:
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Q:

Which part of flower produces pollen grains that are generally yellowish in color?

A) Sepals B) Petals
C) Stamens D) Carpels
 
Answer & Explanation Answer: C) Stamens

Explanation:
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Q:

Skin is an example of what type of tissue?

A) epithelial B) connective
C) nervous D) All of the above
 
Answer & Explanation Answer: A) epithelial

Explanation:

Epithelial tissue is made of layers of cells that cover the surfaces of the body that come into contact with the exterior world, line internal cavities, and form glands.

 

The four types of tissue in the body are epithelial, connective, muscle, and nervous. 

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Q:

Antipsychotic drugs have proved helpful in the treatment of

A) Epilepsy B) Schizophrenia
C) Psoriasis D) Eczema
 
Answer & Explanation Answer: B) Schizophrenia

Explanation:

Antipsychotic drugs have proved helpful in the treatment of schizophrenia and other psychotic disorders, inhibits dopamine, reduces delusions, hallucinations, thought disorganization.

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