第二单元 第一章 第一节 练习使用显微镜 Flashcards

1
Q

显微镜的使用步骤

A

取镜和安放 、 对光 、 观察 、 清洁收镜 。

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2
Q

放大倍数=

A

目镜放大倍数 × 物镜放大倍数

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3
Q

显微镜所成的像是?

A

倒 像

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4
Q

放在显微镜下观察的生物标本,应该是?

A

薄而透明

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5
Q

光强时使用平面镜还是凹面镜?大光圈还是小光圈?

A

平面镜、小光圈(光弱时相反)

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6
Q

下降镜筒时眼睛要注视哪里?

A

物镜

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7
Q

玻片中周围黑线,中间发亮的是什么?

A

气泡

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8
Q

低倍镜换成高倍镜时,怎样调节物镜?

A

转动转换器

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9
Q

低倍镜看到的细胞数目多还是少?细胞大还是小?视野亮还是暗?

A

多、小、亮(高倍镜相反)

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