IB Biology: A2.2-Measuring Cells

IB Biology: A2.2-Measuring Cells

Assessment

Flashcard

Biology

9th - 12th Grade

Practice Problem

Hard

Created by

Herbert Asiedu-Mante

FREE Resource

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10 questions

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1.

FLASHCARD QUESTION

Front

What units are used to measure cells?

Back

Cells are measured in metres, but due to their small sizes, they are measured in additional units in multiples of a thousand smaller or larger, using standard prefixes.

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2.

FLASHCARD QUESTION

Front

What instruments are used to measure cells?

Back

The eyepiece graticule and stage micrometer

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3.

FLASHCARD QUESTION

Front

What is an eyepiece graticule?

Back

A transparent scale placed in the eyepiece of the microscope to measure the length of a cell in eyepiece units.

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4.

FLASHCARD QUESTION

Front

How many divisions does an eyepiece graticule typically have?

Back

It typically has 100 divisions.

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5.

FLASHCARD QUESTION

Front

What is the purpose of calibrating the eyepiece graticule?

Back

To determine the actual length of eyepiece units using a stage micrometer.

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6.

FLASHCARD QUESTION

Front

What is a stage micrometer?

Back

A miniature transparent ruler found on a special glass slide used to calibrate eyepiece units.

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7.

FLASHCARD QUESTION

Front

What are the subdivisions of a stage micrometer?

Back

It has subdivisions of 0.1mm and 0.01mm.

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