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CELL PROCESSES What keeps them alive? Moving Cellular Materials Cells have a _____ membrane that regulates what goes into or out of the cell. Passive.

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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:

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2 CELL PROCESSES What keeps them alive?

3 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.

4 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.

5 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.

6 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 _____.

7 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.

8 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.

9 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.

10 Photosynthesis and _____ - almost the opposite of each other. Photosynthesis produces __________, which are used in respiration. Respiration produces __________, which are used in photosynthesis.

11 permeable

12 without

13 fewer

14 equilibrium

15 water

16 Transport proteins

17 energy

18 Cell membrane

19 Released outside

20 Sunlight energy

21 producers

22 consumers

23 sunlight

24 oxygen

25 Released stored energy

26 cytoplasm

27 Glucose molecules

28 simpler

29 glucose

30 cytoplasm

31 Lactic acid, alcohol

32 mitochondria

33 Broken down

34 oxygen

35 respiration

36 Sugars and oxygen

37 Carbon dioxide and water


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