Biology Questions

Q:

Stress is a factor that contributes to heart disease risk.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

True, poorly controlled stress and anger can lead to heart attacks and strokes.

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Subject: Biology
Exam Prep: AIEEE , Bank Exams
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2 1990
Q:

Sulphur Dioxide pollution is indicated by an excessive growth of which of the following?

A) Algal Blooms B) Lichens
C) Bryophytes D) Protozoa
 
Answer & Explanation Answer: B) Lichens

Explanation:
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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

4 1981
Q:

Which membrane is highly convoluted?

A) the chloroplast outer membrane B) chloroplast inner membrane
C) both the mitochondrial and chloroplast outer membranes D) mitochondrial inner membrane
 
Answer & Explanation Answer: D) mitochondrial inner membrane

Explanation:
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Filed Under: Biology
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3 1975
Q:

Which among the following blood protein regulates the amount of water in plasma?

A) Albumin B) Fibulin
C) Globulin D) Fibrin
 
Answer & Explanation Answer: A) Albumin

Explanation:

The blood protein Albumin regulates the amount of water in plasma.

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Filed Under: Biology
Exam Prep: AIEEE
Job Role: Analyst

5 1975
Q:

Which of the following defines a genome?

A) Every human cell B) the complete set of an organism's genes and other DNA sequences
C) the complete set of an organism's polypeptides D) a karyotype
 
Answer & Explanation Answer: B) the complete set of an organism's genes and other DNA sequences

Explanation:
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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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2 1974
Q:

Bleeding of gums, falling of teeth, fragile bones and delayed wound healing occur due to the deficiency of which one of the following vitamins?

A) Vitamin C B) Vitamin K
C) Vitamin D D) Vitamin B
 
Answer & Explanation Answer: A) Vitamin C

Explanation:

Deficiency of Vitamin C causes Scurvy, Swelling of gums etc.Vitamin K causes Non-clotting of blood ,Vitamin D causes Rickets in children and Osteomalasia in adults, Vitamin B 1 causes Beriberi,B2 causes Cracking of skin,reddish eye,cracking of tongue,B3 causes Whitening of hair ,mentally retardness ,B5 causes Pallagra or 4D syndrome,B6 causes Anemia,skin disease ,B7 causes Paralysis,hair falling,B11 causes Dysentery and B12 causes Jaundice and Teroile Glutemi

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Filed Under: Biology
Exam Prep: Bank Exams

1 1974
Q:

The basic unit of the nervous system is the

A) Lymphs B) Nephrons
C) Nerves D) Neurons
 
Answer & Explanation Answer: D) Neurons

Explanation:

The basic unit of the nervous system is the Neurons.

 

The neuron is a single nerve cell, and you have billions of them.

There are three basic types of neurons::

1. Association,

2. Afferent  and

3. Efferent.

The association neurons comprise the central nervous system (CNS) that is the brain and spinal cord.

The afferent neurons are also known as the sensory neurons, they bring the stimuli from the sensors (e.g., skin, eyes, ears) to the CNS.

The efferent neurons are also known as motor neurons, they bring the responses from the brain to the muscles and the glands.

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Filed Under: Biology
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3 1973
Q:

The fluid mosaic model describes the structure of

A) cell B) plasma membrane
C) nucleus D) All of the above
 
Answer & Explanation Answer: B) plasma membrane

Explanation:
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Filed Under: Biology
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2 1970