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Biology Flash Cards

QuestionAnswer
What is the function of the cell membrane and what cell(s) is it present in? Controls entry and exit of substances as it is selectively permeable. It is present in animal, plant, fungal and bacterial cells.
What is the function of the nucleus and what cell(s) is it present in? Contains genetic information and controls cell activity. It is present in animal, plant and fungal cells.
What is the function of ribosomes and what cell(s) are they present in? The site of protein synthesis. They are present in animal, plant, fungal and bacterial cells.
What is the function of cytoplasm and what cell(s) is it present in? The site of chemical reaction. It is present in animal, plant, fungal and bacterial cells.
What is the function of mitochondria and what cell(s) is it present in? The site of aerobic respiration. It is found in animal, plant and fungal cells.
What is the function of cell wall and what cell(s) is it present in? Provides the cell with support and structure(made of cellulose in plant cells). It is found in plant, fungal and bacterial cells.
What is the function of vacuole and what cell(s) is it present in? Contains cell sap, provides support and structure. It is found in plant and fungal cells.
What is the function of chloroplast and what cell(s) is it present in? Site of photosynthesis, contains green pigment called chlorophyll. It is found in plant cells.
What is the function of plasmid and what cell(s) is it present in? Circular piece of genetic material. It is found in bacterial cells.
What is active transport? Active transport requires energy which is the transportation of membrane proteins to move molecules and ions against the concentration gradient e.g. from a lower concentration gradient to a higher concentration gradient .
What is passive transport? Passive transport does not require energy and occurs down a concentration gradient. Two examples of passive transport are diffusion and osmosis.
What is diffusion? Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.
Why is diffusion important to cells ? Diffusion is important to cells because it allows them to gain useful substances that they need for energy and to grow, and lets them get rid of waste products.
What is osmosis? Osmosis is the movement of water molecules from an area of a higher water concentration to an area of lower water concentration through a selectively permeable membrane.
Created by: GeorgiaG1234
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