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Biology- 10/27/17 Quiz on Cells and Cellular Division
Terms in this set (33)
-CELL ORGANELLE FUNCTIONS-
Control center of the cell where DNA is contained
Town hall- central place for the town
Inside the nucleus; where protein assembly begins
Holds chromosomes; complex DNA bound to proteins
Surrounds the cell and regulates what enters and leaves while also protecting
Supporting layer outside of the membrane for plant strength
Everything contained in the cell outside of the nucleus
Smooth Endoplasmic Reticulum
Membrane that assembles lipid components of cell membrane and exports proteins- DOES NOT CONTAIN RIBOSOMES
Rough Endoplasmic Reticulum
Membranes that assembles lipid components of cell membrane and exports proteins- CONTAINS RIBOSOMES
Endoplasmic Reticulums can be compared to "special carts"
Modifies, sorts, and packages proteins and other materials in the cell
Helps with maintaining shape in the cell
Helps in organizing for cell division
Breaks down materials so they can be used by the cell
Sac-like membranes for storing wastes and other materials
Converts chemical energy stored in food to be used by the cell
"powerhouse of the cell" it powers off of the mitochondria
Captures energy from the sunlight and converts it to food for plants
Carry cell's genetic information
Specialized organs "little organs"
what is being produced, it is the ultimate goal, ribosomes assemble these
-TYPES OF MICROSCOPES-
There are two main kind of microscopes
1. Compound light
What are the 3 parts to the cell theory?
1. All living things are made up of cells
2. Cells are the basic unit for structure and function in living organisms
3. New cells are produced from existing cells
- does not have a nucleus that separates DNA from the rest of the other cell parts
-small and simple
- still are living so they grow, develop, respond, etc.
- have a nucleus that separates DNA from the rest of the other cell parts
- large and complex
- contain many structures
- vary from unicellular to multicellular
ex) protists, plants, animals, and fungi
Difference in plant and animal cells
Plant Cells HAVE:
a) performs photosynthesis
b) animal cells perform energy conversion in the mitochondria
2. Cell wall
a) needed to fight gravity and support plants
3. Central vacuole
a.) space filler that also stores materials and degrades toxic substances
b) very similar to lysosomes
- All cells exist in a _______________________ environment.
- The ____________________________ _________________________ keeps cell's __________________ environment constant by regulating __________________________ of ____________________/_______________________ from one side of the membrane to the other.
2. cell membrane
1. ______________________ Transport- DOES NOT require cellular ___________ to move molecules across the membrane.
- _____________________- the process of particles moving from ____________ concentration to _________ concentration
ex) air freshener in a room
______________________ ____________________ uses special _____________ channels to diffuse across membranes.
ex) _____________________- diffusion of water across a selectively permeable membrane. This happens because the _________________ bilayer repels _________________ which makes it difficult to pass across.
6 Facilitated diffusion
- If the solutions have equal amounts of solute on both sides of the membrane it is called an ____________________ _________________________
* this is what maintains homeostasis
* cells will stay constant
* water moves both ways
- If the solute concentration is higher OUTSIDE THE MEMBRANE, it is called ______________________ _____________________.
* shrinks and shrivels up because all of the water wants to leave the cell.
Solutes in solution < Solutes in cell
water moves <------- that way
(goes away from it)
This is osmosis
molecules are smaller, hyper people are skinny because they have so much energy
- If the concentration of the solute is higher INSIDE THE CELL, it is called a ____________________________ _________________________.
* this cell swells and can even get to the point of exploding
Solutes in a solution> Solutes in a cell
water moves ------->
(into the cell because remember the cell swells up)
hypo-- hippos are big and fat and I guess could explode too
the force produced by the net movement of water in to or out of the cell
2. ________________________ _________________________ DOES NOT REQUIRE ________________ to move materials against the concentration difference.
______________________________ takes ________________ molecules into the cell through _____________ in the membrane.
_________________________ releases _________ materials out of the cell by ________________ to and _______________________ the material and then forcing it out.
1. Active Transport
4. in large
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