Biology Questions

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:

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:

Which cell feature is responsible for making proteins?

A) Chromosomes B) Nucleus
C) Ribosomes D) Cytoplasm
 
Answer & Explanation Answer: C) Ribosomes

Explanation:

Ribosomes comprise a complex macro molecular machine, found within all living cells, that serves as the site of biological protein synthesis. Ribosomes link amino acids together in the order specified by messenger RNA molecules.

 

which_cell_feature_is_responsible_for_making_proteins1558091245.jpg image

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Q:

Which one of the following is a plant hormone?

A) Cytokinin B) Oestrogen
C) Thyroxin D) Insulin
 
Answer & Explanation Answer: A) Cytokinin

Explanation:

Cytokinins is a Plant hormone which helps in cell division and leads to Growth & formation of shoots, roots & bud.

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Q:

Function of Bile juice?

Answer

Bile contains bile acids, which are critical for digestion and absorption of fats in the small intestine. Since bile increases the absorption of fats, it is an important part of the absorption of the fat-soluble substances, such as the vitamins A, D, E, and K. Besides its digestive function, many waste products, including bilirubin, a byproduct of red blood cells recycled by the liver are eliminated from the body by secretion into bile and elimination in feces.

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Q:

Atrophy is a condition that occurs when

A) muscle decreases in size and function because of disease or trauma B) carbon dioxide, lactic acid, and other wastes accumulate in the muscle
C) increased use of skeletal muscle causes an increase in its strength D) the tendons that attach muscle to bone become stretched or injured
 
Answer & Explanation Answer: A) muscle decreases in size and function because of disease or trauma

Explanation:
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Q:

Which phrase best describes rough ER?

A) studded with ribosomes B) fewer solutes than the cell
C) stored in the central vacuole D) protected by vesicles
 
Answer & Explanation Answer: A) studded with ribosomes

Explanation:
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Q:

One function of sphincter muscles is to

A) secrete digestive juices into the GI tract B) grind large food particles
C) trigger hormone release D) control the passage of food through the GI tract
 
Answer & Explanation Answer: D) control the passage of food through the GI tract

Explanation:
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