141 cards
The hydrolitic enzymes contained in lysosomes are ____.
Acid hydrolases function best in ____ environments.
Lysosomes usually have an interior pH of ____.
Lysosomes fuse with ____, to digest their contents.
Lysosomes fuse with endocytotic vesicles, to ____
Any material not degraded by the lysosome ____
Under certain conditions lysosomes rupture and release their contents into the ____, killing the cell.
Any cell that secretes proteins can be expected to have well-developed ____.
____ exist in large concentrations in cells that are about to undergo apoptosis.
Lysosomes exist in large concentrations in cells that are about to undergo ____.
At one point during the development of a human embryo, the hands are webbed. The skin between the fingers eventually undergoes ____.
Rough ER has ribosomes attached to its ____ side.
The portion of the endoplasmic reticulum that lacks ribosomes is called the ____.
The portion of the endoplasmic reticulum that lacks ____ is called the smooth endoplasmic reticulum.
Smooth ER tends to be ____.
In the ____, smooth ER contains glucose 6-phosphatase.
In the liver and kidney, smooth ER contains ____.
Glucose 6-phosphatase, is the enzyme used in ____ to hydrolyze glucose 6-phosphate to glucose.
Glucose 6-phosphatase, is the enzyme used in liver, intestinal epithelial cells, and renal tubule epithelial cells to hydrolyze ____.
In muscle cells, the smooth ER is known as the ____, and it sequesters calcium away from actin and myosin.
When you see smooth ER on the MCAT, think of ____.
When you see ____ on the MCAT, think of lipid metabolism and storage as well as detoxification.
In the liver, triglycerides are produced in the ____.
In the liver, ____ are produced in the smooth ER.
In the adrenal gland, the smooth ER and the cytosol share in the role of ____.
In the adrenal gland, the ____ share in the role of cholesterol formation and its subsequent conversion to various steroids.
In the ____ gland, the smooth ER and the cytosol share in the role of cholesterol formation and its subsequent conversion to various steroi…
Rather than budding off membranes like lysosomes from the Golgi, peroxisomes ____.
According to the endosymbiotic theory, mitochondria may have evolved from a ____ relationship between ancient prokaryotes and eukaryotes.
Mitochondria contains ____ DNA.
Antibiotics that block translation by prokaryotic ribosomes but not eukaryotic ribosomes also block translation by ____ ribosomes.
____ DNA is passed to offspring from the mother even in organisms in which male gametes contribute to the cytoplasm of the egg.
High concentrations of ____ are seen in the cell wherever energy needs are high.
The major microtubule-organizing center in animal cells is the ____.
Cross bridges made from the protein ____ connect each outer pair of microtubules to its neighbor.
____ made from the protein dynein connect each outer pair of microtubules to its neighbor.
____'s action helps reshape the cell membrane.
There is no cholesterol in prokaryotic membranes. ____
Amphipathic proteins can cross the membrane from the inside of the cell to the outside and are called ____ proteins.
____ proteins are located on the surfaces of the membrane and are generally hydrophilic.
Peripheral or extrinsic proteins are located on the surfaces of the membrane and are generally ____.
The carbohydrate portion of a membrane glycoprotein always protrudes toward the o____f the cell.
Random movement of molecules colliding, is called ____.
A gradual change in the concentration of a compound over a distance is called a ____.
For charged solutes, there is also ____ pointing in the direction that a positively charged particle will tend to move.
For charged solutes, there is also an electrical gradient pointing in the direction that a ____ charged particle will tend to move.
Since the membrane slows the diffusion of X but does not stop it, the membrane is ____ to compound X.
A natural membrane is generally impermeable to ____ molecules that have a molecular weight greater than 100 g/mol without some type of assi…
A natural membrane is generally impermeable to polar molecules that have a molecular weight greater than ____ without some type of assistan…
The greater the ____ charge), the less permeable the membrane is to that substance.
____ is a property that is based on the number of particles present rather than the type of particle.
Colligative property is a property that is based on ____.
In ____, extracellular fluid is engulfed by small invaginations of the cell membrane.
Once the particulate matter is engulfed in phagocytosis, the membrane bound body is called a ____.
____ is a protein that forms a polymer, adding structure to the underside of the coated pit during endocytosis.
In G 1 , ____ synthesis are highly active.
The cell must reach a certain size and synthesize sufficient proteins in order to continue to ____ phase.
____ cells remain in G 0 permanently.
In ____ phase, the cell prepares to divide.
G 2 checkpoint, checks for ____.