Biology Questions

Q:

Which of these is an example of a haploid cells?

A) Sperms B) Neurons
C) Red blood cells D) All of the above
 
Answer & Explanation Answer: A) Sperms

Explanation:

In the above options, sperms are the haploid cells. In humans, haploid cells are those have only half the number of usual number of chromosomes. Sperm, gamates and egg cells are the haploid cells examples.

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Q:

What is the correct order for Respiration?

A) Election transport chain – Krebs’ cycle – glycolysis B) Glycolysis – Krebs’ cycle – electron transport chain
C) Glycolysis – electron transport chain – Krebs’ cycle D) The Krebs’ cycle - electron transport chain - glycolysis
 
Answer & Explanation Answer: B) Glycolysis – Krebs’ cycle – electron transport chain

Explanation:

Cellular respiration can be broken down into three main steps:

1. Glycolysis,

2. The Kreb's cycle (The citric acid cycle), and

3. Electron Transport Chain.

 

https://hyperphysics.phy-astr.gsu.edu/hbase/biology/celres.html

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Q:

In Paramecium, the food is moved to a specific spot by the movement of ______ which cover the entire surface of the cell.

A) cilia B) villi
C) pseudopodia D) vacuole
 
Answer & Explanation Answer: A) cilia

Explanation:
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Q:

Haemophilia is a hereditary disease carried by

A) females and expressed by males B) males and expressed by males
C) females and expressed by females D) males and expressed by females
 
Answer & Explanation Answer: A) females and expressed by males

Explanation:

Haemophilia is an inherited bleeding disorder where the blood doesn't clot properly. It is caused when blood does not have enough clotting factor.


The main treatment for hemophilia is called replacement therapy. Concentrates of clotting factor VIII (for hemophilia A) or clotting factor IX (for hemophilia B) are slowly dripped or injected into a vein. These infusions help replace the clotting factor that's missing or low.

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Q:

Where does glycolysis take place?

A) Mitichondria B) Cytoplasm
C) Mitochondrial outer membrane D) None of above
 
Answer & Explanation Answer: B) Cytoplasm

Explanation:

"Glycolysis" means the splitting of glucose. The first step of the process occurs in the cytoplasm of the cell and yields a small amount of energy (measured in units of ATP) and two molecules of pyruvate.

The other steps occur in the mitochondria. It is an ongoing process as your cells have a constant need for energy.

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Q:

Which among the following is/are female hormones?
(i) Estrogen
(ii) Progesterone
(iii) Testosterone

A) (i) and (iii) B) (i) and (ii)
C) (ii) and (iii) D) Only (iii)
 
Answer & Explanation Answer: B) (i) and (ii)

Explanation:
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Q:

Where do arteries carry blood?

A) Heart B) Lungs
C) Tissues D) Brain
 
Answer & Explanation Answer: A) Heart

Explanation:

Arteries carry oxygenated blood away from the heart to the tissues, except for pulmonary arteries, which carry blood to the lungs for oxygenation (usually veins carry deoxygenated blood to the heart but the pulmonary veins carry oxygenated blood as well).

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Q:

Deficiency of which minerals causes goiter?

A) Magnesium B) Calcium
C) Iodine D) Sulphur
 
Answer & Explanation Answer: C) Iodine

Explanation:

Deficiency of Iodine cause Goiter also called Enlarged Thyroid. It doesn't give any pain but difficult to swallow and breath are its causes.

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