Unity and Diversity A.4 Cell Structure (id: 9c80d3de1)

本题目来源于试卷: Unity and Diversity A.4 Cell Structure，类别为 IB生物学

[单选题]
The electron micrograph shows 5r yde3;mwknn 7 8qq;ra sarcome8ev xyb+q gbw9y9u, 7hjm(;ldre, the smallest functional unit of striated muscle tissue. What is the actual length between the tl7b+ 9ye,y9b dgu8q(vmx h j;wwo Z lines?

A. 10 µm
B. 1 mm
C. 1 cm
D. 1 µm


参考答案:  D


本题详细解析:
The length between the two Z lines is 4.5 cm, whic 4wt0ipibvw il* ,x0m-h is equivalent to 45000 µm. Actual length is calculated using the equation; image size diviww xl*m0tbi i vip-0,4ded by magnification. 45000 µm ÷ 45000 x = 1 µm. Choice D is correct.Choices A, B and C are incorrect.

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