Biology Questions

Q:

Example of a single celled organism

A) Algae B) Amaeba
C) Paramaecium D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Single selled organisms are also known as Unicellular organisms in which they have only one cell.

Examples are :: Fungi, Algae, Amaeba, Paramaecium,...

 

Hence, all the above given options are single selled organisms.

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Q:

Benign prostatic hyperplasia is characterized by

A) Not functioning of prostate gland B) Enlargement of prostate gland
C) Epididymis issue D) None of the above
 
Answer & Explanation Answer: B) Enlargement of prostate gland

Explanation:

Benign prostatic hyperplasia (BPH) also called benign prostatic hypertrophy (or) prostate gland enlargement is a noncancerous enlargement of the prostate gland that can lead to lower urinary tract symptoms (LUTS).

 

It is the diagnosis characterized by proliferation of the cellular elements of the prostate.

benign_prostatic_hyperplasia_is_characterized_by1533702972.jpg image

 

Symptoms ::


As the prostate gets larger, it starts to pinch the urethra. This causes symptoms that affect your urine flow, such as:

 

* Dribbling when you finish

* A hard time getting started

* A weak stream, or you pee in stops and starts.

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Q:

The functional connection between two neurons is a

A) Axon B) Synapse
C) Neuroglia D) Dendrites
 
Answer & Explanation Answer: B) Synapse

Explanation:

The functional connection between two neurons is a Synapse.

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Q:

Which word best describes the structure of the cell membrane?

A) Rigid B) Impermeable
C) Nonpolar D) Layered
 
Answer & Explanation Answer: D) Layered

Explanation:
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Q:

Which lists the correct order of evolutionary history?

A) jellyfish, reptiles, mammals B) mammals, crabs, reptiles
C) reptiles, jellyfish, mammals D) crabs, mammals, reptiles
 
Answer & Explanation Answer: A) jellyfish, reptiles, mammals

Explanation:

The correct order of evolutionary history from the above given options is jellyfish, reptiles, mammals.

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Q:

Which organelles supply energy to the cell?

A) Mitochondria B) Cytoplasm
C) Ribosomes D) None of the above
 
Answer & Explanation Answer: A) Mitochondria

Explanation:

Mitochondria which is present in both plant and animal cells supplies energy to the cells and hence called as the powerhouse of the cell.

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Q:

One function of sphincter muscles is to

A) secrete digestive juices into the GI tract B) grind large food particles
C) trigger hormone release D) control the passage of food through the GI tract
 
Answer & Explanation Answer: D) control the passage of food through the GI tract

Explanation:
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Q:

In which of the following part of the cell does the pyruvic acid is broken down into carbon dioxide, water and energy?

A) Cytoplasm B) Nucleus
C) Mitochondria D) Chloroplast
 
Answer & Explanation Answer: C) Mitochondria

Explanation:
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