The Union of Ovum and Sperm During Fertilization Creates the First

question 37

Multiple Choice

The union of ovum and sperm during fertilization creates the first cell of the new organism which is called a

• A)morulA.
• B)blastocyst
• C)zygote.
• D)zona pellucida.

---

Definitions:

Aquaporins

A family of membrane proteins that facilitate water movement through cell membranes, critical for cellular water balance.

Endodermal Cells

Cells that make up the endoderm, the innermost layer of cells or tissue of an embryo in early development, which gives rise to the lining of the digestive and respiratory systems.

Lipid

A group of naturally occurring molecules including fats, oils, and waxes that are insoluble in water but soluble in nonpolar solvents.

Mycorrhizal Fungi

Fungi that form symbiotic associations with plant roots, aiding in nutrient absorption while receiving carbohydrates in return.