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【多选题】
唯物史观在考察谁是历史的创造者时坚持了哪些原则?
A.
立足于现实的人及其本质来把握历史的创造者
B.
立足于整体的社会历史过程来探究谁是历史的创造者
C.
从社会历史发展的偶然性入手来考察和说明谁是历史的创造者
D.
从人与历史关系的不同层次上考察谁是历史的创造者
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举一反三
【多选题】which options below belong to essential amino acid for human body?
A.
Phenylalanine
B.
Glycine
C.
Tryptophan
D.
Serine
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【单选题】A polypeptide has the amino acid sequence glycine – arginine – lysine – serine. The table gives possible tRNA anticodons for each amino acid. Which sequence of bases on DNA would code for the polypept...
A.
CCACGCAAGAGC
B.
CCTTCCTTCTCG
C.
GGAAGGAAAAGC
D.
GGTTGGTTGTGC
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【单选题】Release of amino acid nitrogen and NH4+ is an important step in generating precursors for the urea cycle. Which statement best describes this release of amino acid nitrogen as NH4+ from amino acids?
A.
NH4+ freely diffuses across membranes.
B.
Glutamate deamination by oxidation is readily reversible.
C.
Serine deamination to pyruvate is readily reversible.
D.
Glutamine deamination to glutamate is readily reversible.
E.
NH3 cannot freely diffuse across membranes.
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【简答题】画像;(对某事物的)描绘
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【单选题】画像;(对某事物的)描绘;
A.
point
B.
popular
C.
process
D.
portrait
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【单选题】The amino acid pool allows for constant substrates to be available for numerous bodily uses. Which statement below best describes this amino acid pool?
A.
Approximately 80% of the body ’ s total protein is in the amino acid pool.
B.
Dietary proteins constitute most of the amino acid pool.
C.
The concentration of free amino acids is as rigidly controlled as blood glucose levels.
D.
The synthesis of new protein is the major use of amino acids in the amino acid pool.
E.
Changes in the rate of protein synthesis and degradation occur within seconds to minutes.
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【判断题】动力CAN线如果断掉其中一根线路 不影响其正常使用
A.
正确
B.
错误
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【简答题】画像,(对某事物)的描述
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【单选题】An individual has been shown to have a deficiency in an intestinal epithelial cell amino acid transport system for leucine. However, the individual shows no symptoms of amino acid deficiency. This cou...
A.
The body synthesizes leucine to compensate for the transport defect.
B.
The kidney reabsorbs leucine and sends it to other tissues.
C.
There are multiple transport systems for leucine.
D.
Isoleucine takes the place of leucine in proteins.
E.
Leucine is not necessary for bulk protein synthesis.
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【单选题】An individual has been diagnosed with Hartnup disease and is experiencing symptoms consistent with niacin deficiency. In this patient, which amino acid is no longer able to “ spare ” the dietary requi...
A.
Alanine
B.
Tryptophan
C.
Glutamine
D.
Leucine
E.
Methionine
查看完整题目与答案
相关题目：
【多选题】which options below belong to essential amino acid for human body?
A.
Phenylalanine
B.
Glycine
C.
Tryptophan
D.
Serine
查看完整题目与答案
【单选题】A polypeptide has the amino acid sequence glycine – arginine – lysine – serine. The table gives possible tRNA anticodons for each amino acid. Which sequence of bases on DNA would code for the polypept...
A.
CCACGCAAGAGC
B.
CCTTCCTTCTCG
C.
GGAAGGAAAAGC
D.
GGTTGGTTGTGC
查看完整题目与答案
【单选题】Release of amino acid nitrogen and NH4+ is an important step in generating precursors for the urea cycle. Which statement best describes this release of amino acid nitrogen as NH4+ from amino acids?
A.
NH4+ freely diffuses across membranes.
B.
Glutamate deamination by oxidation is readily reversible.
C.
Serine deamination to pyruvate is readily reversible.
D.
Glutamine deamination to glutamate is readily reversible.
E.
NH3 cannot freely diffuse across membranes.
查看完整题目与答案
【简答题】画像;(对某事物的)描绘
查看完整题目与答案
【单选题】画像;(对某事物的)描绘;
A.
point
B.
popular
C.
process
D.
portrait
查看完整题目与答案
【单选题】The amino acid pool allows for constant substrates to be available for numerous bodily uses. Which statement below best describes this amino acid pool?
A.
Approximately 80% of the body ’ s total protein is in the amino acid pool.
B.
Dietary proteins constitute most of the amino acid pool.
C.
The concentration of free amino acids is as rigidly controlled as blood glucose levels.
D.
The synthesis of new protein is the major use of amino acids in the amino acid pool.
E.
Changes in the rate of protein synthesis and degradation occur within seconds to minutes.
查看完整题目与答案
【判断题】动力CAN线如果断掉其中一根线路 不影响其正常使用
A.
正确
B.
错误
查看完整题目与答案
【简答题】画像,(对某事物)的描述
查看完整题目与答案
【单选题】An individual has been shown to have a deficiency in an intestinal epithelial cell amino acid transport system for leucine. However, the individual shows no symptoms of amino acid deficiency. This cou...
A.
The body synthesizes leucine to compensate for the transport defect.
B.
The kidney reabsorbs leucine and sends it to other tissues.
C.
There are multiple transport systems for leucine.
D.
Isoleucine takes the place of leucine in proteins.
E.
Leucine is not necessary for bulk protein synthesis.
查看完整题目与答案
【单选题】An individual has been diagnosed with Hartnup disease and is experiencing symptoms consistent with niacin deficiency. In this patient, which amino acid is no longer able to “ spare ” the dietary requi...
A.
Alanine
B.
Tryptophan
C.
Glutamine
D.
Leucine
E.
Methionine
查看完整题目与答案