BIOLOGY 1A03 Chapter Notes - Chapter 1: Organelle, Chemical Energy, Thylakoid

• School: McMaster University
• Department: Biology
• Course: BIOLOGY 1A03
• Professor: Lovaye Kajiura

Document Summary

Have a double membrane bound nucleus seperates chromosomes from rest of the cell interior. Both have external membrane that separates interior from exterior. Organelles that generate energy in the form of atp. Chemical energy is stored in the bonds of carbohydrate molecules. Interior is filled with flattened thylakoid stacks o. Pigments and enzymes in these participate in photosynthesis. A process used by plant and animal cells to release the chemical energy stored in the bonds of carbohydrate molecules and partially capture it in the form of atp. Bacteria may also be inside our cells. Could have ingested into a host cell. Could have achieved mutually beneficial interactions that made them stay. Mitchondria and chloroplasts are distinct membrane-bound compartments of the cell that may have entered the cell from external origins. Mitochondria evolved from aerobic bacteria that were engulfed by predatory cells. Chloroplasts evolved from photosynthetic cyanobacteria that were engulfed by predatory cells.