Question

Which sentence uses the term “protein” correctly?

Each type of protein has a specific function in the body, such as helping to digest food or transporting oxygen in the blood.
The cheetah is a skilled protein that uses its speed to catch its prey.
Did you know that each protein cell in your body contains the exact same number of chromosomes?
For billions of years, protein tectonics built and divided supercontinents—land masses made of multiple continents merged together.

Answer 1

The first sentence is correct.

Brief reasons:
- 1 is accurate: different proteins have specific functions (e.g., digestive enzymes, hemoglobin).
- 2 is wrong: a cheetah is an animal, not a protein.
- 3 is wrong: there is no such thing as a "protein cell"; chromosomes are a property of cells, not proteins, and chromosome number can vary (e.g., gametes vs. somatic cells).
- 4 is wrong: the correct term is "plate tectonics," not "protein tectonics."