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【多选题】
Sympathetic excitation can cause( )
A.
decreased glomerular filtration rate
B.
Increased renin secretion
C.
Contraction of glomerular capillaries
D.
Increased Na
+
reabsorption in proximal tubules and medullary loops
E.
Contraction of the arterioles in and out of the glomerulus
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【多选题】In animal experiments, the methods that make breathe faster and deeper are( )
A.
Inhaling CO
2
B.
Intravenous glucose injection
C.
O
2
lack
D.
Intravenous administration of lactic acid
E.
Add invalid cavities
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【多选题】The clinical manifestations of basal ganglia injury include( )
A.
Chorea
B.
Polio
C.
Parkinson's disease
D.
Athetosis
E.
Amnesia
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【单选题】Which of the following steps occurs first in prokayotic transcription?( )
A.
formation of a closed promoter complex
B.
formation of an open promoter complex
C.
Rho protein binding
D.
promoter clearance
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【判断题】All genomes are composed of RNA.( )
A.
正确
B.
错误
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【多选题】When the intracellular Na+ content is too high, it can( )
A.
Increased intracellular Ca
2+
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
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【多选题】Hormones work in( )ways.
A.
Teleconnection
B.
Autocrine
C.
Paracrine
D.
Neurosecretion
E.
Exocrine
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【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
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【多选题】The strength of myocardial contraction depends on( )
A.
Contractility of the myocardium
B.
Afterload
C.
Concentration of Ca
2+
in extracellular fluid
D.
Preload
E.
The number of muscle fibers involved in contraction
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【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
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【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
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