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Unit 2 Review

Review for 7Sci IA2 - cells, organelles, respiration, photosynthesis, mitosis

Testable question A question that is factual, quantifiable (has numbers), and can be answered with a scientific experiment
Independent variable Variable that's manipulated or changed by the scientist
Dependent variable Variable that is measured for the results of the experiment
Constant Things that need to stay the same in an experiment You should only change one thing
Control group The group that doesn't receive the independent variable and is used for comparison Either normal, 0, or none
Experimental group The groups that receive the independent variable
Cell Smallest unit of life Make up all living things
Organelle Small structures that carry out specific functions/jobs in the cell
Nucleus Control center of plant and animal cells Contains genes/DNA
DNA Genetic material that contains instructions for a cell/organism
Cell membrane Outer boundary that controls what can enter and exit a cell
Cytoplasm Fluid that fills the cell Organelles float around here
Unicellular A living thing that's made of one cell
Multicellular Living thing made of many cells
Vacuole Stores waste and water for the cell
Chloroplast Organelle that makes food for plant cells Uses sun energy to make glucose/sugar
Cell Wall Rigid outer layer that provides support and structure for plant and bacteria cells
Mitochondria Organelle that breaks down glucose/sugar to create ATP energy for the cell
Golgi apparatus Packages and ships proteins for the cell
Ribosomes Make proteins for the cell
Photosynthesis Process where plants use sunlight, water, and carbon dioxide to make their own food (glucose) Takes place in chloroplasts
Cellular respiration Process where cells break down food/glucose to create ATP energy
Microscope Tool used to view super small objects like cells
Animal cells Usually round No cell wall or chloroplasts
Plant cells Typically square/rectangle Contain a cell wall and chloroplasts
Created by: dellabiology



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