Cellular Process Notes Standard 7 2 4 Explain

Cellular Process Notes

Standard 7 -2. 4 Explain how cellular processes (including respiration, photosynthesis in plants, mitosis, and waste elimination) are essential to the survival of the organism.

You should know. . . Cellular processes must happen in order for a cell to continue surviving. Cellular processes ensure the survival of the whole or entire organism.

Essential Cellular Processes 1. Photosynthesis • Plants use light energy (like sunlight) to combine carbon dioxide (CO 2) and water (H 2 O) to make simple sugars (C 6 H 12 O 6), which are then stored in the vacuole or used. • Plants release oxygen gas (O 2). • Occurs in the chloroplast.

Cellular Processes Continued 2. Respiration • All plants and animals break down simple sugars (C 6 H 12 O 6) into carbon dioxide (CO 2) and water (H 2 O) and release energy, which is used to build, repair, and reproduce cells. • Occurs in the mitochondria of cells.

Cellular Processes Continued 3. Waste Elimination • Rid the cell of products that could be harmful to it • Waste moves from areas of high concentration to areas of low concentration (diffusion)

Cellular Processes Continued 4. Mitosis • Mitosis is cell reproduction. • Occurs in the nucleus of a cell • Allows the cell to make an exact copy of itself • Produces two daughter cells from one parent cell • The daughter cells are identical to one another and the original parent cell • Is needed for growth, replacement, and asexual reproduction.