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Cell Processes 7

QuestionAnswer
Why is the cell membrane called the gatekeeper for the cell? It decides what comes in and leaves the cell.
What does semipermeable mean? It allows some substances to enter and leave but not others.
What is homeostasis? A steady state or a state of balance
What is passive transport? Transport that happens without expending any cellular energy
Name 2 types of passive transport. Diffusion and Osmosis
What is diffusion? The movement of solutes across the cell membrane from an area of high concentration to an area of low concentration.
What is osmosis? The diffusion of water (high to low)
What is the energy of the body? ATP
What happens to a cell if it is placed in a solution with a higher water content? It will swell.
What happens to a cell if it is placed in a solution with a lower water content? It will shrink
What happens to a cell if it is placed in a solution with a equal water content? It will stay the same.
What is active transport? Moving substances across the cell membrane USING ENERGY
If a substances is going across the membrane from a low concentration to a high concentration we call that Active transport
Engulfing is an example of Active Transport
Photosynthesis happens in what organelle? The chloroplast
What is the name of the pigment that absorbs energy from the sun? Chlorophyll
What are the reactants in photosynthesis? carbon dioxide and water
What are the products of photosynthesis? glucose and oxygen
What is an autotroph? An organism that makes its own food
What is a heterotroph? An organism that eats other organisms.
What is cellular respiration? When our food is broken down and released as usable energy
Where does respiration take place? Mitochondria
The reactants in respiration are glucose and oxygen
The products of respiration are carbon dioxide, water and ATP
Why do grocery stores install water sprayers in the produce section? Because when water is sprayed on the fruits and vegetables they take in water through the process of osmosis. This makes them appear fresh.
What happened to our gummy bears during our first day of lab? (When we placed them in pure water) The swelled up because of osmosis. Water traveled into the bears.
Created by: cwalczak
 

 



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