Biology Questions

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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Q:

Every ecosystem must have

A) Autotrophs B) Heterotrophs
C) Both A & B D) photosynthesizers
 
Answer & Explanation Answer: A) Autotrophs

Explanation:

Every ecosystem must have Autotrophs.

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Q:

A protein is being assembled when

A) RNA is being translated B) DNA is being translated
C) RNA is being transcribed D) DNA is being transcribed
 
Answer & Explanation Answer: A) RNA is being translated

Explanation:

A protein is being assembled when RNA is being translated. This process goes as, by the process of transcription first DNA is is converted to mRNA. And then by the process of translation this mRNA is converted to proteins.

=> DNA ----> mRNA ----> Proteins.

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Q:

Produces a usable form of energy for the cell

A) Lysosomes B) Vacuoles
C) Mitochondria D) Ribosomes
 
Answer & Explanation Answer: C) Mitochondria

Explanation:

We all know that, Mitochondria is the powerhouse of the cell. In both Plants and animals, it produces a usable form of energy.

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Q:

In photosynthesis________

A) Light energy is converted into chemical energy B) Chemical energy is converted into Light energy
C) Chemical energy is converted into electrical energy D) Light energy is converted into Mechanical energy
 
Answer & Explanation Answer: A) Light energy is converted into chemical energy

Explanation:
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Q:

Do plant cells have Mitochondria?

A) No B) Yes
C) May be D) Can't be determined
 
Answer & Explanation Answer: B) Yes

Explanation:

While plant cells have chloroplasts to photosynthesize, they also require ATP for cellular functions, and do use oxygen to break down some of the sugar they produce in order to generate that ATP. Cellular respiration takes place in the mitochondria. They need mitochondria for this reason.
Hence with this logic, we can say that Plants cells have mitochondria.

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Q:

Sugar is a component of which of the following?

A) Lipids B) Nucleic acids
C) Carbohydrates D) Both B & C
 
Answer & Explanation Answer: C) Carbohydrates

Explanation:

Sugar is a component of Carbohydrates.

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Q:

The organs of the urinary system are

A) Kidney B) Urinary bladder
C) Ureter D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

the_organs_of_the_urinary_system_are1537338921.png image

 

The urinary system purpose in the human body is to eleminate the waste from the body. The urinary system is also called as Rena system. It consists of kidney, ureter, urinary bladder and urethra.

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