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举一反三
【多选题】When the intracellular Na+ content is too high, it can（ ）
A.
Increased intracellular Ca2+ levels in many tissues
B.
Decrease the resting potential
C.
Activate the Na+ pump
D.
Cause cell edema
E.
Decrease the level of amino acids in the epithelial cells of renal tubules
【多选题】Hormones work in（ ）ways.
A.
Teleconnection
B.
Autocrine
C.
Paracrine
D.
Neurosecretion
E.
Exocrine
【单选题】Which is FALSE about DNA pol III in prokaryotes?（ ）
A.
α, δ, ξ subunits form core enzyme
B.
It is the key enzyme in DNA replication
C.
β clamps aid it to fix DNA templates
D.
it can catalyze the formation of 3’-5’phosphodiester bond
【多选题】The strength of myocardial contraction depends on（ ）
A.
Contractility of the myocardium
B.
Afterload
C.
Concentration of Ca2+ in extracellular fluid
D.
Preload
E.
The number of muscle fibers involved in contraction
【单选题】The energy required for the step of peptide chain elongation in prokaryotic is? （ ）
A.
UTP and ATP
B.
only GTP
C.
ATP and GTP
D.
CTP and GTP
【多选题】The following description that can increase glomerular filtration rate is（ ）
A.
Sweating profusely
B.
Vigorous exercise
C.
Increased renal blood flow
D.
Large loss of blood
E.
Rapid injection of normal saline
【单选题】The Rho protein is involved in the _____ stage of transcription. （ ）
A.
elongation
B.
termination
C.
post-transcriptional processing
D.
initiation
【多选题】Regarding the cerebellum's regulation of body movement, the following descriptions are correct（ ）
A.
Intentional tremor may occur after damage
B.
Maintain body balance
C.
Regulate muscle tension
D.
Coordinate voluntary movements
E.
Participate in the design and programming of voluntary movements
【多选题】What is correct in the following statements about pulmonary ventilation power （ ）
A.
The direct force is the change of intrapleural pressure
B.
The prime force is the relaxation and contraction of respiratory muscles
C.
The prime power is the change of pleural pressure
D.
Direct force is the difference between the pulmonary pressure and atmospheric pressure
E.
Direct force is the difference between the intrapulmonary pressure and the pleural pressure
【多选题】When excitable cells are stimulated（ ）
A.
Cells with different functions show different functional activities
B.
Bioelectric changes occur firstly, and then external functional changes occur
C.
Cells with different functions produce a common bioelectrical change called action potential
D.
The generation of action potential is also called excitation
E.
The action potential is caused by the depolarization of the membrane potential to the threshold potential