Untitled Flashcards Set

Cell membrane- in all cells, made up of lipid bilayer

job of cell membrane- regulates what eneters and leaves the cells and protects and supports cell

Only eukaryotes have nuclei, in both plant and animal cells

Centriole-

What is called when ribosomes are on the surface of endoplasmic reticulum- rough er

What is called when ribosomes are not on the surface of endoplasmic reticulum- smooth er

rough er- synthesis of proteins

smooth er- synthesis of lips, carbohydrates

Golgi apparatus- modifies, sorts and packages proteins and other materials from the ER for storage in the cell or release from cell

Chloroplast- captures energy from sunlight and converts into chemical energy stored in food during photosynthesis

Mitochondria- converts chemical energy stored in food molecules into compounds for cell to use

Cell wall- supports and shapes, and protects cell, not in animal cell

job of cell wall- provides strength to hold plants and trees up

Lipid bilayer- gives cell membrane a flexible structure than can form a strong barrier between cell and surroundings

Hydrophobic

Hydrophilic

Semi permeable (selectively permeable)- some substance can cross and some cant cross membrane

Passive transport- movement of molecules across cell membrane without using cellular energy

Diffusion- process where particles move from area of higher concentration to area of lower concentration

Osmosis- diffusion of water through a selectively permeable membrane

what happens if cells are in hypertonic solutions- shrink

what happens if cells are in hypotonic solutions-swell

Facilitated diffusion- the process of diffusion in which molecules pass across the membrane through all cell membrane channels

does facilitated diffusion use energy from cell- no

Hypotonic- less solute compared to water molecules

Hypertonic- more solutes compared to water molecules

isotonic- water molecules move equally in both directions

Active transport- movement of materials against a concentration difference which requires energy

two types of active transport- molecular transport and bulk transport- endocytosis and exocytosis

example of exocytosis- removal of water

example of tissue- muscle tissue

example of organ- biceps

example of organ- muscular system