mRNA leaves the _____ through a pore
nucleus
What attaches to mRNA?
ribosome
signal recognition particles bind to _____ polypeptide and stops protein synthesis temporarily
signal
Why does the smooth ER only produce lipids?
no ribosomes
Where do lysosomes come from?
Golgi apparatus
The lysosome contains ________ enzymes.
hydrolytic
Peroxides or vacuoles: Act as metabolic assistants to other organelles
P
Peroxides or vacuoles: Function to regulate turgor pressure in plants
v
Peroxides or vacuoles: Membrane bound vesicles that contain enzymes
p
What is the reactant of cellular respiration?
Glucose and oxygen
Actin interacts with motor molecules such as:
myosin
When movement is need ____ uses atp to move one leg and down the microtubule and the other leg follows, moving the organelle.
kinesin
In eukaryotic cells, ribosomes occur in the ______ singly or in groups called ______
cytoplasm; polyribosomes
Sometimes, when the protein being synthesized begins with a _____, the ribosome binds to the
endoplasmic reticulum where the protein is further folded and modified.
signal peptide
True or false: lipid solvable molecules need a membrane protein in order to cross the plasma membrane
False
t or f: nonpolar molecules can cross the plasma membrane without the aid of membrane proteins
t
______ involves the movement of gasses ions and water soluble ions
diffusion
______ requires a semi-permeable membrane
osmosis
______ causes extreme turgor in plant central vesicle
hypotonic
What do the processes of active transport and facilitated diffusion have in common?
Both use transport proteins to move material across the membranes.
______ transports large substances inside the cell
phagocytosis
During one cycle, the sodium-potassium pump binds and moves
3 Na+ and 2 K+
Certain white blood cells engulf microorganisms and bring them in to digest them. This process is best described as
phagocytosis
