Module 11 Biology Homework

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Biology Homework 1. All living things including plants and animals are made up of cells. The cell is the basic structural and functional unit found in all known living organisms and is the smallest functional unit of all forms of life. Every part of our body is made from cells. Without them we would not exist or have any tissues, organs or body parts. 2. Mitochondria- The organelle which produces ATP within a cell by breaking down glucose Golgi Apparatus- An organelle which packages material into vesicles for export from a cell Ribosomes- The organelle where the production of proteins occur Chloroplast- An organelle only found in plant cells which convers sunlight, carbon dioxide and water into sugars through a process called photosynthesis.…show more content…
A cell membrane is important as it encloses all the contents within a cell. The cell membrane regulates what goes into and out of the cell. It expels waste and protects the cell from viruses. It allows the cell to receive nutrients and water. 4. The size of a cell is limited by the Surface-Area:Volume ratio, since this ratio influence the rate of entry and exit of substances into and out of cells. Cells are limited to small sizes so that their surface areas are large enough to let in essential material fast enough to meet their needs, and to allow waste materials to diffuse out fast enough to avoid the cells being poisoned by their own wastes. 5. Enzymes are a type of protein which speeds up the chemical reactions which occur within an organism by lowering the activation energy required to start the reaction. 6. Lock and Key- Only a specific substrate is able to fit in a particular enzymes active site as the substrate is believed to be a perfect fit for the active site. Induced Fit- When a substrate binds to an enzyme’s active site, the enzyme temporarily changes shape to accommodate the

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