upcoming unit test Flashcards
(39 cards)
what are the different transport mechanisms in cells
diffusion, osmosis, facilitated diffusion, active transport,endocytosis, exocytosis
what is exocytosis
the process of vesicles fusing with the cell membrane to REALEASE CONTENTS
what is endocytosis
the process by Wich cells engulf substances, BRINING THEM INTO the cell.
active transport
direct use of ATP to transport molecules, goes against the gradient
Wich of the transport processes is used in bulk transport
exocytosis, and endocytosis
what is osmosis
the movement of water molecules across a membrane, going from and area of high solute concentration to low.
what is the primary function of the cell membrane
to act as a selective barrier for Wich substances come in and out
all cells have a….
cell mebrane
a procreuyatik Is different from a eukaryotic cell because
its much simpler and doesn’t have a nucleas only a nucleotide
Wich process requires atp
active transport
what is photosynthesis
the process where plants use light to make energy
what is cellular respiration
how plants make energy in the night or winter
what are the products and reactants of photosynthesis
co2 H20 are the reactants and glucose h2o and o2 are the products
what are the products and reactants of cellular respiration
glucose and o2 are the reactants and ATP h2o and co2 are the products
where does photosynthesis occur
chloroplasts in plant leaves
where does cellular respiration occur
michtochondria
if a molecule is larger what does that mean for the SA/volume ratio
the larger something is the lower the SA/V ratio meaning its harder for molecules to enter or leave
what is a hypotonic solution
a solution that when a cell is placed inside of it it will burst because its low solute
what is an isotonic solution
same amount t of solute inside and outside the cell
what do lysosomes do
digest material
what is an example of active transport
sodium potassium pump
how do substances move in active transport
against there gradient, low to high
how does water move in osmosis
high water concentration to low water conentration
where is ATP produced
michtochondria
