cells Flashcards
(13 cards)
what is the order in size from smallest to largest of the following. organ, cell, organism, tissue, organ system
cell, tissue, organ, organ system, organism
what are multicellular organisms
organisms that are made up of multiple cells, humans, plants, dog, fish
what are unicellular organisms
organisms made up of one cell, bacteria are often unicellular
what do animal and plant cells have in common
cell membrane, mitochondria, nucleus, cytoplasm and ribosomes
what are the three magnifications of a light microscope
x40, x100 x400
what does a chloroplast do
absorb light for photosyntehsis
what does a cell wall do
it protects the cell and gives it structure
what does a vacuole do
supports the cell and stores chemicals
what does a cell surface membrane do
controls entry and exit of chemicals
what does a mitochondria do
location of respiration
what does a nucleus do
contains genetic material and gives instructions to the cells. DNA controls an organisms characteristics
what does a cytoplasm do
contain s water and dissolved chemicals. this is also where chemical reactions take place
what is diffusion
movement of particles form areas of high concentration to areas of low concentration until easily spread. this happens naturally. it does not require energy
