revision paper Flashcards
8 characteristics of living things
Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition
cell theory
that all living cells came from pre existing cells
what are eukaryotic cells
other than bacteria.
have a nucleus.
have a mitochondria.
what are prokaryotic cells
mostly bacteria.
no nucleus.
simply structured.
difference between animal and plant cells
plant called have a cell wall, animal cells do not. plant cells have chloroplast making photosynthesis an oppertunity.
nucleus
brain of cell.
holds dna.
controls cell.
nucleolus
make ribosomes, needed for protein. found within the nucleus.
mitocondria
energy source by converting food into energy (ATP)
rough endoplasmic reticulum
assembles and modifies proteins
golgi apparatus
modifies, sorts, and packages proteins and lipids from the endoplasmic reticulum
ribosomes
create proteins based on cell instruction
vesicles
transport or store substances
chloroplast
use sunlight to create sugar and oxygen
vacuole
holds and stores
membrane
barrier and protection of cell
purpose of photosynthesis
for plants to make their own food and produce oxygen.
process of photosynthesis
sunlight, water and carbon dioxide
organelles involved in photosynthesis
chloroplast (solar panel)
stroma (produce sugar)
aerobic cellular respiration
energy production
process of aerobic cellular respiration
glucose, oxygen -> energy, carbon dioxide, water
organelles involved in aerobic respiration
cytoplasm
mitocondria
simple diffusion
high crowded area of molecules to low
facilitated diffusion
movement of cells with special protein transport
what is osmosis
Osmosis is the movement of water through a cell membrane from where there’s more water to where there’s less. It happens naturally without energy.
endocytosis
cell takes in substances by wrapping its membrane around them and forming a bubble. This bubble then moves into the cell.
exocytosis
Exocytosis is when a cell pushes substances out using a vesicle that merges with the cell membrane.
