Biology Questions

Q:

Which statement concerning the diagnosis of ADHD is true?

A) Boys are more likely to be diagnosed with ADHD than girls B) Most children "outgrow" symptoms of ADHD
C) About 20 percent of school-age children are diagnosed with ADHD D) Racial minority status is a good predictor of being diagnosed with ADHD
 
Answer & Explanation Answer: A) Boys are more likely to be diagnosed with ADHD than girls

Explanation:
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Q:

Which process requires no energy from the cell?

A) Osmosis B) Diffusion
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The processes both osmosis and diffusion come under passive transport and require no energy. The movement of solute from the region of higher concentration to the region of lower concentration is nothing but diffusion.

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Q:

Where does transcription occur in eukaryotes?

A) Cytoplasm B) Nucleus
C) Chromosomes D) None of the above
 
Answer & Explanation Answer: B) Nucleus

Explanation:
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Q:

When the diaphragm and external intercostal muscles contract,

A) the volume of the thorax decreases. B) the volume of the lungs decreases.
C) the volume of the thorax increases. D) the lungs shrink.
 
Answer & Explanation Answer: C) the volume of the thorax increases.

Explanation:
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Q:

Visceral pain usually starts in which of the following?

A) Kidneys B) Abdomen
C) Rectum D) Esophagus
 
Answer & Explanation Answer: B) Abdomen

Explanation:

Visceral pain is a poorly localized, dull, or diffuse pain. It usually arises from the abdominal organs.

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Q:

Autoimmune diseases associated with vitiligo

A) Thyroiditis B) Diabetes mellitus
C) Psoriasis D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Vitiligo is a condition in which the skin loses its pigment cells (melanocytes). This can result in discolored patches in different areas of the body, including the skin, hair, retina and mucous membranes.

vitiligo1531457140.jpg image

Many disorders have been linked to vitiligo. They are::

Hashimoto thyroiditis,

Graves disease,

Addison disease and

diabetes mellitus,

alopecia areata,

pernicious anemia,

inflammatory bowel disease,

psoriasis, and

autoimmune polyglandular syndrome.

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Q:

Which of the following is true of osmosis?

A) it is a type of diffusion B) movement is against water's concentration gradient
C) requires energy D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Q:

Gametes are produced by the process of

A) Mitosis B) Meiosis
C) Both A & B D) None of the above
 
Answer & Explanation Answer: B) Meiosis

Explanation:

A gametes are haploid cells as they have only one set of chromosomes. Meiosis is a process of cellular reproduction in which both male and female gametes are formed. During meiosis, the DNA is only replicated or copied one time.

Gametes_are_produced_by_the_process_of1560944987.png image

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