Biology Questions

Q:

The purpose of hydrogenating unsaturated fats is to

The_purpose_of_hydrogenating_unsaturated_fats_is_to1552999400.jpg image

A) to make them more solid at room temperature B) to recommend daily intake as fiber
C) to make them more liquid D) None of the above
 
Answer & Explanation Answer: A) to make them more solid at room temperature

Explanation:

The purpose of hydrogenating unsaturated fats is to make them more solid at room temperature as it is easy store the product.

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Q:

The C shape of the tracheal cartilages is important because

A) divide the nasal cavity B) Allows for expansion or contraction of the trachea
C) provide a surface for the sense of smell D) All of the above
 
Answer & Explanation Answer: B) Allows for expansion or contraction of the trachea

Explanation:

Allows for expansion or contraction of the trachea. Hence, so large masses of food can pass through the esophagus during swallowing.

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Q:

Factors that aid venous return include all except

A) pressure changes in the thorax B) urinary output
C) activity of skeletal muscles D) venous valves
 
Answer & Explanation Answer: B) urinary output

Explanation:
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Q:

Which statements about viruses are true?

A) HIV contains reverse transcriptase. B) A retrovirus contains RNA.
C) Both A & B D) All RNA-containing viruses are retroviruses.
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The statements true about viruses are :

 

1. The capsid enters the host cell if the virus is enveloped.

2. Enveloped viruses bud from the host cell. 

3. HIV contains reverse transcriptase.

4. A retrovirus contains RNA.

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Q:

Study of Life in outer space is known as

A) Endobiology B) Neobiology
C) Exobiology D) Intrabiology
 
Answer & Explanation Answer: C) Exobiology

Explanation:

Study of Life in outer space or search of life external to Earth is known as Exobiology.

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Q:

The HIV retrovirus is particularly deadly because

A) I can become AIDS shortly afte being contracted B) It attacks the body immune system
C) Treatments can be dangerous for patients D) Its hard to diagnose accurately
 
Answer & Explanation Answer: B) It attacks the body immune system

Explanation:

HIV is a virus that damages the immune system. HIV is a lifelong condition, and without treatment, a person with HIV can develop AIDS.

The_HIV_retrovirus_is_particularly_deadly_because1563452540.jpg image

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Q:

Where does translation occur?

A) Nucleus B) Ribosomes
C) Cytoplasm D) mitochondrion
 
Answer & Explanation Answer: C) Cytoplasm

Explanation:

Right after that, the mRNA enters the cytoplasm through nuclear pores. There, it could be translated into proteins by ribosomes. This process is called translation.

 

Translation occurs in the cytoplasm whereas transcription occurs in the nucleus.

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Q:

The primary goal of conservation biology is to

A) counter the loss of biodiversity B) estimate the total number of species that exist
C) integrate human culture back into nature D) catalogue species
 
Answer & Explanation Answer: A) counter the loss of biodiversity

Explanation:
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