题目内容

Organelles that contain enzymes that destroy material engulfed by the cell are:含有破坏被细胞吞噬物质的酶的细胞器是：

A. mitochondria.
B. ribosomes.
C. lysosomes.
D. nucleoli.
E. centrioles.

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The watery component of the cytoplasm is called:细胞质的水成分被称为：

A. cytoskeleton.
B. cytosol.
C. extracellular fluid.
D. centrosome.
E. vesicle.

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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.

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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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Organelles that contain enzymes that destroy material engulfed by the cell are:含有破坏被细胞吞噬物质的酶的细胞器是：

A. mitochondria. B. ribosomes. C. lysosomes. D. nucleoli. E. centrioles.

The watery component of the cytoplasm is called:细胞质的水成分被称为：

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：

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？

A. mitochondria.
B. ribosomes.
C. lysosomes.
D. nucleoli.
E. centrioles.