Question

Fertilizin is

• A. Phospholipid
• B. Steroid
• C. Carbohydrate
• D. Glycoprotein

Answer 1

The correct option is D

Glycoprotein

The correct option is D.

Explanation for the correct option:

1. Fertilizin is a glycoprotein that is found on the membrane of the ovum.
2. Fertilizin is a chemical substance found in eggs that are released by the ovum and play an important role in fertilization.
3. Antifertillizin, an acidic amino acid, is found in sperm.
4. This fertilizin-antifertilizin interaction ensures that sperm from the same species merge with the ovum.

Explanation for the incorrect option:

Option A:

1. Phospholipids are found in high concentrations in the brain, spinal cord, and bodily fluids such as plasma.
2. These compound lipids are important components of the cell membrane and give it a fluid appearance.

Option B:

1. The steroid is a hormone that is found in the adrenal cortex, testes, ovary, and the placenta.
2. Steroids are synthetic versions of hormones that are naturally produced by the adrenal glands, which are two tiny glands above the kidneys.
3. Steroids diminish redness and swelling of the membranes when taken in higher doses than your body naturally generates.

Option C:

1. Carbohydrates, sometimes known as carbs, are sugar molecules.
2. Carbohydrate is in form of glycogen present in the liver and muscles.
3. It provides energy to our body.

Final answer: Fertilizin is a glycoprotein.