2 - Mrs. O' Hehir's Biology Site



2.2 Cell Metabolism

Definitions

|Term |Definition |

|Metabolism |All the chemical reactions that occurs in organisms |

|Enzyme |Biological catalyst |

|Immobilised Enzyme | A biological catalyst which is fixed to an inert material by chemical or physical means.|

|Bioreactor |Vessel in which products are made by cells (or organisms) (or enzymes) |

|Photosynthesis |Process where plants make carbohydrate using (sun)light energy (CO2, water and |

| |chlorophyll). |

|Aerobic respiration |The release of energy from carbohydrate using oxygen |

|Anaerobic respiration |The release of energy from carbohydrate without using oxygen. |

|Fermentation |Anaerobic respiration |

|Diffusion |The movement of [gas or liquid] molecules from a region of higher concentration to a |

| |region of lower concentration |

|Osmosis |The movement of water molecules from a region of high water concentration to a region of|

| |low water concentration across a S.P.M selectively permeable membrane or |

| |The movement of water molecules along a concentration gradient across a SPM. or |

| |Movement of water molecules from a more dilute solution to a more concentrated solution |

| |across a selectively permeable membrane |

|Turgor |The state of fullness in a plant cell due to the intake of water. |

2.2. Cell Metabolism

Define the following terms:

|Term |Definition |

|Metabolism | |

| | |

|Enzyme | |

| | |

|Immobilised Enzyme | |

| | |

|Bioreactor | |

| | |

|Photosynthesis | |

| | |

|Aerobic respiration | |

| | |

|Anaerobic respiration | |

| | |

|Fermentation | |

| | |

|Diffusion | |

| | |

|Osmosis | |

|Turgor | |

| | |

2.2. Cell Metabolism

What term may be described by the following definitions?

|Term |Definition |

| |All the chemical reactions that occurs in organisms |

| |Biological catalyst |

| |A biological catalyst which is fixed to an inert material by chemical or physical means. |

| |Vessel in which products are made by cells (or organisms) (or enzymes) |

| |Process where plants make carbohydrate using (sun)light energy (CO2, water and |

| |chlorophyll). |

| |The release of energy from carbohydrate using oxygen |

| |The release of energy from carbohydrate without using oxygen. |

| |Anaerobic respiration |

| |The movement of [gas or liquid] molecules from a region of higher concentration to a |

| |region of lower concentration |

| |The movement of water molecules from a region of high water concentration to a region of|

| |low water concentration across a S.P.M selectively permeable membrane or |

| |The movement of water molecules along a concentration gradient across a SPM. or |

| |Movement of water molecules from a more dilute solution to a more concentrated solution |

| |across a selectively permeable membrane |

| |The state of fullness in a plant cell due to the intake of water |

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