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Q:

Dynamic equilibrium receptors are found in the

A) Vestibule B) Maculae
C) Semicircular Canals D) Cupula
 
Answer & Explanation Answer: C) Semicircular Canals

Explanation:

Dynamic equilibrium receptors are found in the Semicircular Canals. It monitors angular or rotational movements of the head when the body ismoving, such as a figure skater’s spinning, but maintaining balance.

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Q:

Pellagra and Scurvy are caused by which pair of vitamin deficiency respectively _______________

A) VitaminC and VitaminD B) VitaminB-12 and VitaminC
C) VitaminC and VitaminA D) Vitamin A and VitaminB-12
 
Answer & Explanation Answer: B) VitaminB-12 and VitaminC

Explanation:
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Q:

Where are the proteins of the electron transport chain located?

A) mitochondrial matrix B) mitochondrial inner membrane
C) mitochondrial outer membrane D) mitochondrial intermembrane space
 
Answer & Explanation Answer: B) mitochondrial inner membrane

Explanation:

The proteins of the electron transport chain are present in mitochondrial inner membrane in Eukaryotes.

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Q:

A sudden loss of memory is a symptom of

A) Alzheimer's B) Dementia
C) Amnesia D) None of the above
 
Answer & Explanation Answer: C) Amnesia

Explanation:

A sudden loss of memory is a symptom of Amnesia which is caused by an injury or damage to our brain. In that situation we cannot remember about ourself and our life.

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Q:

Which one of the following weeds is effective in controlling water pollution caused by industrial effluents?

A) Parthenium B) Elephant grass
C) Water hycinth D) Mogar grass
 
Answer & Explanation Answer: A) Parthenium

Explanation:
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Q:

Which plant cell organelle contains its own dna and ribosomes?

A) mitochondria B) Chloroplasts
C) Both A & B D) Vacuole
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The plant cell organelles, "The power house of the cell" mitochondria and the chloroplasts contains their own DNA and ribosomes.

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Q:

Which of the following statements about enzymes is not true?

A) all enzymes have the same shape as their substrates B) enzymes are proteins
C) enzymes work best at a specified ph D) the shape of an enzyme allows it to do its job
 
Answer & Explanation Answer: A) all enzymes have the same shape as their substrates

Explanation:

All enzymes have the same shape as their substrates is the FALSE statement regarding enzymes.

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Q:

Which is a difference between proteins and carbohydrates and fats?

A) Proteins are composed of monomers; carbohydrates and fats are not. B) Excess carbohydrates and fats are stored; excess proteins are not.
C) Proteins are macromolecules; carbohydrates and fats are not. D) Carbohydrates and fats contain carbon, hydrogen, and oxygen; proteins do not.
 
Answer & Explanation Answer: B) Excess carbohydrates and fats are stored; excess proteins are not.

Explanation:

All proteins, carbohydrates and fats are macronutrients that we need to make living. They contribute to 90% of the dry weight of our diet. 

 

From the given options, Excess carbohydrates and fats are stored; excess proteins are not.

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