题目内容

Which of the following conditions is required for diffusion to occur? ()

ATP energy
B. A living cell
C. A concentration difference
D. A selectively-permeable membrane

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Which of the following are structures that are not found in prokaryotic cells? ()

A. a membrane bound nucleus
B. mitochondria
C. Golgi bodies
D. all of the above

The basic unit of the living organism is ()

A. organ
B. Tissue
C. cell D) system

What's your gender

A. Male
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If 180 g glucose (M=180 g/mol) is dissolved in 1 kg water. The magnitude of freezing point depression of this solution is(Kf=1.86 K•kg•mol-1)

A. 0.512k
B. 1.86k
C. 1.024k
D. 3.72 K