皮皮学，免费搜题
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搜题
【单选题】
对不同症状患者接触时的要点,不正确的是
A.
对缄默状态的患者静坐其身旁
B.
对妄想患者启发其诉说并以听为主
C.
对抑郁消极患者诱导其疏泄内心的痛苦
D.
对有攻击行为的患者不能与其交谈
E.
对患者表达同感心
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举一反三
【判断题】Proteins can only bind to other proteins.
A.
正确
B.
错误
查看完整题目与答案
【多选题】A cell can control the proteins it contains by:
A.
(1) controlling when and how often a given gene is transcribed, (2) controlling how an RNA transcript is spliced or otherwise processed
B.
(3) selecting which mRNAs are exported from the nucleus to the cytosol
C.
(4) regulating how quickly certain mRNA molecules are degraded, (5) selecting which mRNAs are translated into protein by ribosomes
D.
(6) regulating how rapidly specific proteins are destroyed after they have been made; in addition, the activity of individual proteins, once they have been synthesized, can be further regulated in a variety of ways
查看完整题目与答案
【多选题】Proteins can be globular or fibrous, and they can form ____________________.
A.
filaments
B.
sheets
C.
rings
D.
spheres
查看完整题目与答案
【多选题】The membrane proteins can be classified into three categories: ( )
A.
integral proteins
B.
lipid-anchored membrane proteins
C.
peripheral membrane proteins
D.
glycoprotein
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【判断题】与边沁相比，密尔提出快乐不仅有数量的区分，也有质的不同，但是他无法有说服力地证明精神快乐高于物质快乐的理由，所以这种区分是无意义的。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】我国持续时间最长的典型官府菜是
A.
孔府菜
B.
北京清宫菜
C.
北京谭家菜
D.
开封仿宋菜
查看完整题目与答案
【多选题】Membrane proteins can associate with the lipid bilayer in different ways:
A.
Transmembrane proteins can extend across the bilayer as a single α helix, as multiple α helices, or as a rolled-up β sheet (called a β barrel). These transmembrane proteins are amphipathic, having both hydrophobic and hydrophilic regions. Their hydrophobic regions lie in the interior of the bilayer, nestled against the hydrophobic tails of the lipid molecules. Their hydrophilic regions are exposed to the aqueous environment on either side of the membrane.
B.
Some membrane proteins are anchored to the cytosolic half of the lipid bilayer by an amphipathic α helix.
C.
Some proteins lie entirely outside the bilayer, on one side or the other, attached to the membrane by one or more covalently attached lipid groups.
D.
Many proteins are attached to the membrane only by relatively weak, noncovalent interactions with other membrane proteins.
查看完整题目与答案
【单选题】“船政根本在于学堂”提出这一观点的人是 。
A.
曾国藩
B.
林则徐
C.
左宗棠
D.
沈葆桢
查看完整题目与答案
【简答题】Proteins can be selectively precipitated by ____________ and _____________.
查看完整题目与答案
【判断题】Only carrier proteins can carry out active transport, but both carrier proteins and channel proteins can carry out passive transport.
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【判断题】Proteins can only bind to other proteins.
A.
正确
B.
错误
查看完整题目与答案
【多选题】A cell can control the proteins it contains by:
A.
(1) controlling when and how often a given gene is transcribed, (2) controlling how an RNA transcript is spliced or otherwise processed
B.
(3) selecting which mRNAs are exported from the nucleus to the cytosol
C.
(4) regulating how quickly certain mRNA molecules are degraded, (5) selecting which mRNAs are translated into protein by ribosomes
D.
(6) regulating how rapidly specific proteins are destroyed after they have been made; in addition, the activity of individual proteins, once they have been synthesized, can be further regulated in a variety of ways
查看完整题目与答案
【多选题】Proteins can be globular or fibrous, and they can form ____________________.
A.
filaments
B.
sheets
C.
rings
D.
spheres
查看完整题目与答案
【多选题】The membrane proteins can be classified into three categories: ( )
A.
integral proteins
B.
lipid-anchored membrane proteins
C.
peripheral membrane proteins
D.
glycoprotein
查看完整题目与答案
【判断题】与边沁相比，密尔提出快乐不仅有数量的区分，也有质的不同，但是他无法有说服力地证明精神快乐高于物质快乐的理由，所以这种区分是无意义的。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】我国持续时间最长的典型官府菜是
A.
孔府菜
B.
北京清宫菜
C.
北京谭家菜
D.
开封仿宋菜
查看完整题目与答案
【多选题】Membrane proteins can associate with the lipid bilayer in different ways:
A.
Transmembrane proteins can extend across the bilayer as a single α helix, as multiple α helices, or as a rolled-up β sheet (called a β barrel). These transmembrane proteins are amphipathic, having both hydrophobic and hydrophilic regions. Their hydrophobic regions lie in the interior of the bilayer, nestled against the hydrophobic tails of the lipid molecules. Their hydrophilic regions are exposed to the aqueous environment on either side of the membrane.
B.
Some membrane proteins are anchored to the cytosolic half of the lipid bilayer by an amphipathic α helix.
C.
Some proteins lie entirely outside the bilayer, on one side or the other, attached to the membrane by one or more covalently attached lipid groups.
D.
Many proteins are attached to the membrane only by relatively weak, noncovalent interactions with other membrane proteins.
查看完整题目与答案
【单选题】“船政根本在于学堂”提出这一观点的人是 。
A.
曾国藩
B.
林则徐
C.
左宗棠
D.
沈葆桢
查看完整题目与答案
【简答题】Proteins can be selectively precipitated by ____________ and _____________.
查看完整题目与答案
【判断题】Only carrier proteins can carry out active transport, but both carrier proteins and channel proteins can carry out passive transport.
A.
正确
B.
错误
查看完整题目与答案