Presentation on theme: "CELL PROCESSES What keeps them alive? Moving Cellular Materials Cells have a _____ membrane that regulates what goes into or out of the cell. Passive."— Presentation transcript:
CELL PROCESSES What keeps them alive?
Moving Cellular Materials Cells have a _____ membrane that regulates what goes into or out of the cell. Passive transport - the movement of substances through a cell membrane _____ the use of energy.
Diffusion - when molecules move away from areas where there are more of them into areas where there are _____ of them; stops when molecules of one substance are spread evenly throughout another substance and _____ occurs. Osmosis - the diffusion of _____ through a cell membrane.
In facilitated diffusion, _____ move substances into and out of the cell. Active transport requires _____ to move substances through a cell membrane. Endocytosis - the process in which a substance is taken into a cell by surrounding it with the _____, forming a sphere called a vesicle. Exocytosis - the process in which the membrane of the vesicle fuses with the cells membrane and the vesicles contents are _____ the cell.
Photosynthesis - the process that plants and other organisms use to convert _____ into chemical energy or sugars to be used as food. _____- organisms that make their own food; _____- organisms that cant make their own food. Chlorophyll and other pigments are used to in photosynthesis to capture _____ which is used to produce sugar and _____.
Respiration - the process in which chemical reactions break down food molecules into simpler substances and ____ Respiration of carbohydrates begins in the _____. Carbohydrates are broken down into _____. Each glucose molecule is broken down into two _____ molecules, releasing energy.
Respiration moves into the _____. The two simpler molecules are _____ again, releasing much more energy. This process uses _____ and produces CO 2 and water as waste.
Fermentation - cells that do not have enough oxygen for respiration use this process to release some of the stored energy in _____ molecules. Entire process occurs in the _____. Produces _____, _____, and carbon dioxide as wastes.
Photosynthesis and _____ - almost the opposite of each other. Photosynthesis produces __________, which are used in respiration. Respiration produces __________, which are used in photosynthesis.