Bio quiz #1 Flashcards
(29 cards)
Vacuole function
Stores nutrients and water (singular large in plant cell numerous small in animal cell)
Nucleus function
The brain of the cell, stores DNA(both cells)
Choroplasyt
Site of photosynthsis
Cell wall
Mains cell shape
Ribosomes
protein synthesis
Smooth ER
Lipid synthesis
Rough ER
Protein synthesis(has ribosomes attached)
Golgi apparatus
Processes, sorts, and packages proteins and lipids for transport to their destinations.
Lysosomes
break down old or damaged organelles, large molecules, and cellular debris
Cytoplasm
the fluid that fills cells and serves several important functions
Cell membrane
gate keeper of what can get on cell
Cell wall
providing support, protection, and shape
Mitochondria
Powerhouse of cell, Produces energy
Osmosis
Similar to diffusion, but deals only with the movement of water.
Diffusion
Molecules are able to pass right through the membrane, so they travel from an area of high to low concentration
Carrier protein vs channel proteins
CHANNEL PROTEINS: shaped like tubes or tunnels. The solute just goes straight through the tunnel
CARRIER PROTEINS: open up on one side to allow molecule in. Closes then opens on the other side to allow it out
centrioles
cell division
Factors effecting rate of diffusion
Concentration gradient and higher temp increase rate
Particle model
- Particles are attracted to one another
- all matter is made from particles
3.always moving(fastest in gases slowest in solids) - there are spaces between them
Cell theory
- All living things are made up of attest one cell
- Smallest functioning unit of life
- cells are produced through pre existing cells(cell division)
Types of microscopes pro and cons of each
Light(type were familiar with portable lower resolution relatively cheap)
Confocal(uses lasers, not portable higher resolution, more expensive)
Electron(Uses fine beam electrons, incredibly expensive, very good resolution, not portable at all)
A cell is a __________ system
open
Cell membrane
Made up of phospholipid bilayer, which is two layers of fat (lipids) that have phosphates attached.
the accepted model for the structure of the cell membrane.
Fluid mosaic model