Pre AP Biology Final Exam Study Guide Qs&As 100% Pass! 2024

Pre AP Biology Final Exam Study Guide Qs&As 100% Pass! 2024 What is the difference between the dependent and independent variable in an experiment? - ANS- An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment. Homeostasis - ANS-The ability of a cell to maintain a stable, internal environment. Without precise control of things moving in and out, the cell would shrivel or pop! Osmosis - ANS-The movement of water from an area of high concentration to an area of low concentration. A type of passive transport Diffusion - ANS-The movement of molecules from an area of high concentration to an area of low concentration. A type of passive transport Active transport - ANS-Uses energy to move substances across the cell membrane. Moves materials against the concentration gradient, materials move from an area of low concentration to an area of high concentration Passive Transport - ANS-The movement of molecules in or out of a cell that requires no cellular energy. Materials move from an area of high concentration to an area of low concentration Endocytosis - ANS-materials move into the cell. Cell takes in large particles by engulfing them Exocytosis - ANS-moving materials out of a cell. Opposite of endocytosis What is the difference between a variable and a control in an experiment? - ANS-Dependent variable: An outcome variable that is measured each time the independent variable is changed. Control variable: Any other variable that may affect the outcome. What makes up an atom and where are those parts found? - ANS-...