| Organelle Structure and Function | ||
| #1 |
|
Plant cell |
| #2 | What is the function of the ribosome? |
create proteins |
| #3 | What structures are found in a plant cell but not in an animal cell? |
Cell wall and chloroplasts |
| #4 | What is the function of the cell membrane? |
to control what enters and leaves the cell |
| #5 | Which organelle is responsible for receiving, packaging, and shipping proteins around the cell? |
The golgi body |
| Discovering Cells | ||
| #1 | What are cells? |
The basic units of structure and function in living things |
| #2 | The invention of the _________ allowed people to discover and learn about cells. |
microscope |
| #3 | What are the 3 parts of cell theory? |
1. all living things have cells 2. cells are the basic unit of structure and function 3. all cells come from cells |
| #4 | How are multicellular organisms organized? |
Cells → tissues →organs → organ system |
| #5 | Which scientist proposed that all cells come from cells? |
Virchow |
| Organic Compounds | ||
| #1 | What is an element? |
an element is any substance that cannot be broken down into simpler substances. |
| #2 | Carbohydrates and lipids serve similar functions in that they are a source of _______ for the cell. |
energy |
| #3 | sugars and starches are examples of which organic compound? |
carbohydrates |
| #4 | which organic compound performs an important function within chemical reactions? |
proteins, specifically enzymes |
| #5 | sugar molecules can combine with one another to form large molecules called _____. |
starches |
| Entering and Exiting the Cell | ||
| #1 | the cell membrane is _________________________ which means that some substances can pass through the membrane while others cannot. |
Selectively permeable |
| #2 | During diffusion molecules move from an area of _______ concentration to an area of _____ concentration to travel with the concentration gradient. |
high, low |
| #3 | Movement across a cell membrane that requires energy is called _____. |
Active transport |
| #4 | What term refers to the diffusion of water molecules through a selectively permeable membrane? |
osmosis |
| #5 | A ccell with a low concentration of oxygen will likely gain oxygen molecules from an area with a higher oxygen concentration through the process of _______. |
diffusion |
| Miscellaneous | ||
| #1 | The stomach is an example of a(n) ______ that is composed of muscle tissue. |
organ |
| #2 | When two or more elements combine chemically they form a ______. |
compound |
| #3 | a microscope allowed Hooke to see "tiny retangular rooms" which he called _____. |
Cells |
| #4 | DNA is found in this chemical compound |
nucleic acids |
| #5 | What prevents cells from growing large? |
Tt would take too long for things to be delivered to organelles! As a cell grows the cytoplasm becomes located further from the cell membrane which means that it takes longer for materials to go to all parts of the cell and it would take logner for waste to leave the cell and the cell would not function quick enough. |
| Final Question | |
describe two methods of active transport |
1. transport proteins- proteins in the cell membrane that pick up molecules and carry them in or out of the cell. 2. engulfing- the cell membrane engulfs a particle, then pinches off and forms a vacuole within the cell. |
