Explanation

• Vitamin A poisoning, also known as hypervitaminosis A, can occur when an individual consumes excessive amounts of vitamin A. The liver of polar bears (Ursus maritimus) is particularly high in vitamin A, and eating it can lead to acute vitamin A poisoning.
• Polar bear liver can contain up to 30,000 IU of vitamin A per gram, which is significantly higher than the recommended daily intake. Consuming even small amounts of polar bear liver can lead to toxic levels of vitamin A in the body, causing symptoms such as headache, dizziness, nausea, and even death in severe cases.

Explanation

• During aerobic respiration, the complete oxidation of one glucose molecule (C6H12O6) produces 38 ATP molecules.
• This process involves the breakdown of glucose in the cytosol, the citric acid cycle, and oxidative phosphorylation in the mitochondria, ultimately generating 38 ATP molecules.

Explanation

• Folic acid is the most essential nutrient for a woman during her initial stages of pregnancy to prevent birth defects.
• It plays a crucial role in preventing neural tube defects in the developing fetus.

Explanation

• The bacterium Yersinia pestis causes plague. 
• Plague is a zoonotic disease that can be transmitted from animals to humans.
• There are three types of plague, which are bubonic, septicemic and pneumonic, each named for the part of the body that gets infected by Y pestis.

Explanation

• A zoonotic disease is a disease that can be transmitted from animals to humans.
• Examples of zoonotic diseases include rabies, Lyme disease, and Ebola.
• These diseases can be spread through various means, such as direct contact with an infected animal, vector bites (like ticks or mosquitoes), or contaminated food and water.

Explanation

Explanation

• Pantothenic acid, also known as vitamin B5, is a derivative of Coenzyme A (CoA).
• The main functions of CoA is the activation and transfer of acyl groups, which involves the reactive sulfhydryl group through the formation of thioester linkages with acyl groups.
• Retinol and Retinoic acid are associated with vitamin A.
• Pyridoxine is associated with vitamin B6.

Explanation

The name of the fluid that fills the mitochondria is matrix.

The mitochondria have an outer membrane, an inner membrane, in the inner membrane, a gel-like fluid is present which is called a matrix.

A matrix is viscous.

Explanation

Human teeth have two sets of teeth during their life i.e, one temporary set of milk and one permanent set.

Additional information:

The first set, deciduous teeth, also called "primary teeth"

It eventually contains 20 teeth.

They usually grow in by the age of 2.

The second set is called permanent teeth.

These are the teeth that grow between the ages of 6 and 12.

You start with 20 primary teeth

and end with 32 permanent teeth,

including the four wisdom teeth.

Explanation

 Centrioles are composed of nine triplets of microtubules arranged in a cylindrical structure.

Each triplet consists of three microtubules arranged in a cylindrical fashion.

So, overall, a centriole consists of a total of 27 microtubules organized into nine triplets.