AP Biology Practice Exam Questions and Answers
yes
is testosterone lipid soluble
testosterone
readily passes through the cell membrane and binds to a receptor in the cytoplasm. the hormone and receptor then enter the nucleus and act as a transcription factot
voltage-gated calcium chann...
ap biology practice exam questions and answers yes
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AP Biology Practice Exam Questions and
Answers
yes
is testosterone lipid soluble
testosterone
readily passes through the cell membrane and binds to a receptor in the cytoplasm. the hormone and
receptor then enter the nucleus and act as a transcription factot
voltage-gated calcium channels in the membrane open
what is a direct result of depolarizing presynaptic membrane of an axon
oxygen gas
in photosynthesis, atom goes from water to
pump
whenever this term is used, active transport occurs
diffusion
glucose crosses membranes by
adrenal glands
release cortisol
genes
all cells in your body contain the same
the speed that it is degraded
the amount of protein synthesized from mRNA depends on
since they are triploid, they cannot generate gametes because homologous pairs cannot line up
why are bananas triploid, seedless, and sterile
acrosome reaction
enables the sperm to penetrate the coat of the surrounding ovum
cortical reaction
ensures that a fertilization membrane forms and prevents another sperm from penetrating the egg
true
true or false, an antigen can have multiple epitopes
barr body
, an inactivated x chromosome and results in females with half of their cells having one x inactivated
and the other half of their cells having the other x inactivated
hydrophillic, hydrophobic
the heads of phospholipids are ____, while the tails are
quorum sensing
how bacterial cells communicate with each other
autocrine signaling
in animal cells, signals diffuse from one part of a cell to another part of the same cell
synaptic signaling
signals in the nervous system use neurotransmitters between cells
paracrine signaling
send a message to nearby cells by diffusion
endocrine signals
can travel anywhere in the blood to reach target cell
ion channel receptors
open and shut a channel or gate in a membrane allowing an influx of ions such as Na+
g-protein coupled receptor
shape change occurs in the cytoplasmic side of the receptor and activates the intermediary g protein
inside the cell
protein kinase receptors
belong to a class of plasma membrane receptors that exhibit enzyme activity
an activated receptor
constitutes a cellular response
climate
long term weather
weather
conditions experienced in short time
regenerate by secondary ecological succssion
how a biome regenerates after a disrutbance
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