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This study stack is to help you study for a test on Cells

What is the function of the cell wall? helps to protect and support the cell
What does the cell membrane do for the cell? controls what substances come into and out of the cell
Which cell has a cell wall, an animal cell or a plant cell? plant cell
What is the "brain" of the cell the nucleus
What is an organelle? the tiny cell structures that carry out specific functions within the cell
What does mitochondria do for the cell? converts energy in food molecules to energy the cell can use to carry out its function
Which part of a cell produces protein? ribosomes
What is the function of chloroplasts? takes energy from the sunlight and use it to produce food for the cell (photosynthesis)
What is the difference between a bacterial cell and a plant or animal cell? does not contain a nucleus.
What is diffusion? the main method by which small molecules move across the cell membrane
What causes diffusion? collisions of molecules against each other cause them to push away from one another which, over time, cause the molecules will spread out until they are evenly distributed.
Give an analogy of diffusion. students in a crowded hallway spread out when going through a bigger hallway
Give an analogy of a cell membrane the walls of a castle are like a cell membrane because they protect the castle and the gatekeeper decides who to let in or out
What is osmosis? the diffusion of water molecules through a selectively permeable membrane
Why does osmosis occur? because cells cannot function properly without adequate water and many cellular processes depend on it
What process took place when we put the food coloring into the water for our egg experiment? diffusion
What process took place when the egg sat in the water with food coloring? osmosis
How is osmosis related to diffusion? it is the process by which small molecules move from an area of higher concentration to an area of lower concentration. versus the diffusion of water molecules through a selectively permeable membrane
Give an analogy of photosynthesis solar panels, because they take energy from the sun and turn it into energy we can use.
What is active transport? the movement of materials through a cell membrane using cellular energy; it requires the cell to use its own energy
What is passive transport? is the movement of dissolved materials through a cell membrane without using cellular energy
Created by: lonniewood