From the following pairs, find the one which is correctly matched?

 

The correct statement from the given options is

The AV valves are supported by chordae tendineae so that regurgitation of blood into the atria during ventricular contraction does not occur.

The process by which bacteria convert nitrogen gas (N2) into ammonia (NH3) is called Nitrogen Fixation.

The conversion of nitrogen from one form to another in the nitrogen cycle is carried out primarily by Nitrogen Fixing Bacteria such as Azotobacter.

Consume foods that have the most nutrition for their kcalories describes the Nutrient Density.

Mitochondria is the Organelle in which Cellular Respiration Occur.

DNA can be found in 3 Organelles namely Nucleus, Mitochondria in animals and Chloroplasts in plants.

There are about 70 organs in the human body. The Top 10 largest organs in the human body based on size are:

1. Skin

2. Liver

3. Brain

4. Lungs

5. Heart

6. Kidneys

7. The Spleen

8. The Pancreas

9. Thyroxin

10. The Prostrate.

Nutrients are necessary for break down the food and supply energy to the organisms and to carry out essential life functions.

• Important nutrients are Hydrogen, Carbon and Oxygen.

• Some more important nutrients for plants are : Potassium, Sulphur, Nitrogen, Phosphorous, Calcium and Magnesium. 

Amylase, also called Ptyalin, which is capable of breaking down starch into simpler sugars such as maltose and dextrin that can be further broken down in the small intestine is the Enzyme present in Saliva.