Microscopes - Science 10 - Quizizz

Multiple Choice

What is the function of the eyepiece/ocular lens in a microscope?

• Magnifies 10x

• Switches between objective lenses

• Supplies light to view the specimen

• Holds the specimen in place.

Multiple Choice

The revolving nosepiece is used to ______.

• Hold the specimen in place

• Switch between objective lenses

• Supply light to the specimen

• Magnify the specimen.

Multiple Choice

Which part of the microscope is responsible for magnifying the specimen with three powers: low (4x), medium (10x), and high (40x)?

• Eyepiece/ocular lens

• Objective lenses

• Diaphragm

• Lamp

Multiple Choice

What is the function of the diaphragm in a microscope?

• A) Opens/closes to control light

• B) Magnifies specimen

• C) Moves stage up/down

• D) Supplies light

Multiple Choice

The base of the microscope is used to ______.

• Hold the specimen

• Supply light

• Hold it when carrying

• Bring specimen into focus

Multiple Choice

Who is known as the 'Father of biology' and was one of the first to use the scientific method?

• Janssen Brothers

• Aristotle

• Galileo

• Hooke

Multiple Choice

Which of the following statements is true about the Janssen Brothers?

• They improved the microscope with better magnification.

• They were the first to observe the movement of living cells.

• They were Dutch eyeglass makers who made the first microscope.

• They invented the electron microscope.

Multiple Choice

Fill in the blank: The cell is the _______ unit of life.

• largest

• smallest

• most complex

• simplest

Multiple Choice

Who added lens and light to the Janssen design and came up with the idea of cells?

• van Leeuwenhoek

• Hooke

• Virchow

• Ernst & Knoll

Multiple Choice

According to cell theory, all living things are made up of _______.

• atoms

• molecules

• cells

• tissues

Multiple Choice

What is the magnification when a 2.5x low-power objective lens is used with a 10x eyepiece?

• 15x

• 25x

• 30x

• 40x

Multiple Choice

If a microscope has a 20x eyepiece and a 20x objective lens, what's the magnification?

• 200x

• 300x

• 400x

• 500x

Multiple Choice

What is the power of the ocular lens if you get a 300x magnification with a 10x objective lens?

• 20x

• 25x

• 30x

• 35x

Multiple Choice

This is the view through low power. What is the field diameter? ______ mm.

• A) 18

• B) 20

• C) 22

• D) 24

Multiple Choice

What is the field of view on medium power if the low power field diameter is 18 millimetres and the low magnification is 40x?

• 5.2 millimetres

• 6.2 millimetres

• 7.2 millimetres

• 8.2 millimetres

Multiple Choice

What is the formula for calculating the actual size of an object?

• actual size = field diameter / # of objects that can fit across the field of view

• actual size = drawing size / scale

• actual size = scale / drawing size

• actual size = # of objects that can fit across the field of view / field diameter

Multiple Choice

What is the actual size of a specimen if the field diameter is 0.550 millimetres and 5 specimens fit across the field of view?

• 0.110 millimetres

• 0.220 millimetres

• 0.330 millimetres

• 0.440 millimetres

Multiple Choice

Fill in the blank: The scale of a drawing is the comparison between the size of a drawing and the actual size of the specimen. If the drawing size is 32.5 mm and the actual size is 0.325 mm, the scale is ____.

• A) 100:1

• B) 50:1

• C) 10:1

• D) 1:1

Multiple Choice

What is the scale of a drawing if the drawing size is 45.0 mm and the actual size is 0.250 mm?

• A) 180:1

• B) 90:1

• C) 45:1

• D) 22.5:1

Multiple Choice

Fill in the blank: To calculate the actual size of a specimen, you need to know the field diameter and the number of objects that can fit across the field of view. If the field diameter is 0.400 millimetres and 3 objects fit across, the actual size is ____.

• 0.133 millimetres

• 0.200 millimetres

• 0.300 millimetres

• 0.400 millimetres

Multiple Choice

What is the difference in colour/light between the specimen and its background called?

• Resolution

• Contrast

• Fluorescence

• Magnification

Multiple Choice

How can we make cells that are mostly colourless easier to see?

• Use a microscope

• Add a stain (colour) to the cell

• Increase the resolution

• Use UV light

Multiple Choice

The ability to distinguish between two structures that are close together is known as ________.

• A) Contrast

• B) Resolution

• C) Fluorescence

• D) Magnification

Multiple Choice

What type of microscopy uses green fluorescent protein (GFP) to view specimens?

• Electron microscopy

• Fluorescent microscopy

• Light microscopy

• Scanning microscopy

Multiple Choice

In fluorescent microscopy, the specimen is put under _______ and the stain glows.

• Visible light

• Infrared light

• UV light

• X-rays

Multiple Choice

Which type of microscope uses light to pass through the specimen and is known for being cheap and easy to use?

• Confocal Microscope

• Scanning Electron Microscope (SEM)

• Light Microscope

• Transmission Electron Microscope (TEM)

Multiple Choice

What is the main disadvantage of using a Confocal Microscope?

• Low magnification

• Expensive

• Produces black and white images

• Cannot view live specimens

Multiple Choice

The Scanning Electron Microscope (SEM) is known for producing 3D images and high magnification. What is one of its disadvantages?

• Can view live specimens

• Produces colour images

• Expensive

• Small size

Multiple Choice

Fill in the blank: The Transmission Electron Microscope (TEM) uses a beam of electrons that passes ______ the specimen.

• around

• through

• over

• under

Multiple Choice

Which microscope is described as using lasers and computers to focus light on a small area, providing high resolution and 3D images?

• Light Microscope

• Confocal Microscope

• Scanning Electron Microscope (SEM)

• Transmission Electron Microscope (TEM)

Multiple Choice

What is the function of the eyepiece/ocular lens in a microscope?

• Magnifies 10x

• Switches between objective lenses

• Supplies light for viewing specimen

• Holds specimen in place.

Multiple Choice

Which part of the microscope is responsible for bringing the specimen into rough focus?

• Coarse adjustment knob

• Fine adjustment knob

• Diaphragm

• Stage clips

Multiple Choice

A student used a ruler to determine the field of view on low power was 1.5 mm. What is the field of view on high power?

• 0.15 mm

• 0.30 mm

• 0.45 mm

• 0.60 mm

Multiple Choice

A student draws a 2.5 cm diagram of a cell. If the actual size of the cell is 0.5 mm, what is the scale of the drawing?

• 25:1

• 50:1

• 75:1

• 100:1

Multiple Choice

The _______ is the part of the microscope that holds the specimen in place.

• Stage

• Stage clips

• Base

• Arm