Unit 1 Bio Vocab

9. Composed of only one cell, such as bacteria, yeast, and protozoa.
10. The process by which cells become specialized in structure and function to perform specific roles.
12. Allowing substances to pass through it, but not all substances at the same rate or in the same quantities.
13. A cell formed by the fusion of male and female gametes during fertilization, which develops into an embryo.
14. Transport: The movement of molecules from an area of high concentration to an area of low concentration without the use of energy.
15. The passive movement of molecules from an area of high concentration to an area of low concentration.

1. Bilayer: A type of lipid bilayer membrane that surrounds the cells of all living organisms, composed of phospholipid molecules.
2. A type of cell lacking a true nucleus, characteristic of bacteria and archaea.
3. Transport: The process by which cells move molecules from an area of low concentration to an area of high concentration, using energy.
4. The capacity to do work, which can be in the form of kinetic energy, potential energy, or other forms.
5. The process by which male and female gametes combine to form a zygote.
6. Composed of multiple cells, such as animals, plants, and fungi.
7. A type of cell characterized by a true nucleus and other membrane-bound organelles.
8. Gradient: A difference in concentration, where a substance is more abundant in one area than in another.
11. A cell organelle responsible for protein synthesis, consisting of ribosomal RNA and proteins.