题目内容

The movement of solutes across the plasma membrane from an area of high concentration to an area of low concentration is known as:溶质从高浓度区域到低浓度区域的等离子体膜的运动被称为：

A. osmosis.
B. active transport.
C. filtration.
D. diffusion.
E. glycocalyx.

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True or false? Carbohydrate marker molecules are chemically unique in everyone except identical twins.除同卵双生外，糖类标记分子在化学上是独一无二的。

A. TRUE
B. FALSE

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Which of the following is not true about integral proteins?关于积分蛋白，以下哪一种是不正确的？

A. They are also known as transmembrane proteins.
B. They can be carrier proteins.
C. They are often attached to carbohydrates.
D. They can act as receptors.
E. They are only found in the outer part of the cell membrane.

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True or false? Lipoproteins are composed of hydrophilic heads.脂蛋白是由亲水性的头部组成的。

A. TRUE
B. FALSE

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The plasma membrane is said to be:等离子体膜被认为是：

A. freely permeable.
B. impermeable.
C. selectively permeable.

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The movement of solutes across the plasma membrane from an area of high concentration to an area of low concentration is known as:溶质从高浓度区域到低浓度区域的等离子体膜的运动被称为：

A. osmosis. B. active transport. C. filtration. D. diffusion. E. glycocalyx.

True or false? Carbohydrate marker molecules are chemically unique in everyone except identical twins.除同卵双生外，糖类标记分子在化学上是独一无二的。

Which of the following is not true about integral proteins?关于积分蛋白，以下哪一种是不正确的？

True or false? Lipoproteins are composed of hydrophilic heads.脂蛋白是由亲水性的头部组成的。

The plasma membrane is said to be:等离子体膜被认为是：

A. osmosis.
B. active transport.
C. filtration.
D. diffusion.
E. glycocalyx.