Question | Answer |
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. |