Biology Questions

Q:

Prokaryotic cells lack

A) Membrane bound by organelles B) Nucleolus
C) Nuclear membrane D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Prokaryotic cells lack a nucleus and do not have an extensive system of interior membranes. They are encased in a cell wall and many contain external structures such as a capsule, flagellum, or pili. Prokaryotes – have a relatively uniform interior that is not subdivided by internal membranes.

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Q:

Chemical Co- ordination in the body is brought out by

A) Blood B) Lymph
C) Enzymes D) Hormones
 
Answer & Explanation Answer: D) Hormones

Explanation:
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Q:

Which of the following harmone is called the emergency harmone ?

A) Insulin B) Adrenaline
C) Estrogen D) Oxytocin
 
Answer & Explanation Answer: B) Adrenaline

Explanation:
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Q:

Which of the following crops  would be preffered for sowing in order to enrich the soil with nitrogen?

A) Wheat B) Mustard
C) Sunflower D) Gram
 
Answer & Explanation Answer: D) Gram

Explanation:
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Q:

Which would provide the body with the most energy?

A) Breaking a single carbon bond B) Forming bonds between two amino acids
C) Creating bonds to form a carbohydrate D) Breaking the bonds in a monosaccharide
 
Answer & Explanation Answer: D) Breaking the bonds in a monosaccharide

Explanation:
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Q:

Which pair consists of negative symptoms of schizophrenia?

Which_pair_consists_of_negative_symptoms_of_schizophrenia1539324076.jpg image

A) blunted affect and delusions B) delusions and hallucinations
C) withdrawal and flat affect D) abolition and hallucinations
 
Answer & Explanation Answer: D) abolition and hallucinations

Explanation:

Abolition and hallucinations is the pair that consists of negative symptoms of schizophrenia.

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Q:

AIDS is caused by the organisms which are

A) bacteria B) fungi
C) viruses (HTLV III) D) ProtoZoa
 
Answer & Explanation Answer: C) viruses (HTLV III)

Explanation:

AIDS: The term means Acquired Immunity Deficiency Synodrome. The virus attacks the T cells of the (white corpuscle type) blood and destroys them.

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Q:

What happens during the process of translation?

A) Transfer RNA is made from messenger RNA B) Copies of DNA molecules are made
C) The cell uses information from messenger RNA to produce proteins D) Messenger RNA is made from DNA
 
Answer & Explanation Answer: C) The cell uses information from messenger RNA to produce proteins

Explanation:

Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA). During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks of proteins.

 

In short, during the process of translation source language text is conveyed to destination language.

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