Biology: Microscopes and Cell Discovery

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What is the function of the body tube in a light microscope?

To allow you to view the image and contains the ocular lens
To provide light for viewing the slide
To support the microscope when it is carried
To hold the objective lens and rotate to change magnification (correct)

What does the term 'resolution' refer to in the context of microscopes?

The ability to distinguish two very close objects from each other (correct)
The ability to view the image and contains the ocular lens
The amount of light passing through the slide
The ability to find the specimen when using low power

Which part of the microscope supports and stabilizes it?

Base (correct)
Coarse Focus Knob
Revolving Nosepiece
Eyepiece

What is the function of the diaphragm in a light microscope?

Controls the amount of light passing through the slide (B) Signup and view all the answers

Who used the microscope to discover cells?

Robert Hooke (C) Signup and view all the answers

What does 'magnification' refer to in the context of microscopes?

How many times larger an image is than the actual object itself (B) Signup and view all the answers

What is the function of the cell wall in plants?

To keep the cell rigid and protect it against mechanical stress and infection (C) Signup and view all the answers

Which organelle is known as the powerhouse of the cell?

Mitochondria (C) Signup and view all the answers

What is the main function of chlorophyll in plants?

Converts light energy into chemical energy (C) Signup and view all the answers

Which type of cells contain a nucleus bound by a double membrane?

Eukaryotic cells (C) Signup and view all the answers

What is the function of vacuoles in plant cells?

Cell storage center for functions like secretion, excretion, and storage (C) Signup and view all the answers

Which type of cells have a simpler structure than eukaryotic cells?

Prokaryotic cells (D) Signup and view all the answers

What is the main function of the cell membrane?

Controls what enters and leaves the cell (B) Signup and view all the answers

What is the function of the revolving nosepiece in a light microscope?

Holds the objective lens and is able to rotate to change magnification (D) Signup and view all the answers

What is the main function of the arm in a light microscope?

Supports and stabilizes the microscope when it is carried (A) Signup and view all the answers

What part of the light microscope is used to make small focus adjustments, especially when using the high power?

Fine Focus Knob (C) Signup and view all the answers

Which part of the light microscope supports the slide that is being viewed?

Stage (D) Signup and view all the answers

What is the function of the diaphragm in a light microscope?

Controls the amount of light passing through the slide (B) Signup and view all the answers

What does 'resolution' refer to in the context of microscopes?

The ability to distinguish two very close objects from each other (B) Signup and view all the answers

What is the main function of the cell wall in plants?

Keeping the cell rigid and strong (A) Signup and view all the answers

Which organelle is known as the powerhouse of the cell?

Mitochondria (A) Signup and view all the answers

What is the main function of chlorophyll in plants?

Performs photosynthesis (B) Signup and view all the answers

What does a vacuole in a plant cell primarily do?

Stores cell sap and helps with photosynthesis (D) Signup and view all the answers

Which type of cells contain a nucleus bound by a double membrane?

Eukaryotic cells (D) Signup and view all the answers

What is the main function of the cytoplasm in a cell?

Provides an aqueous medium for chemical reactions (D) Signup and view all the answers

What is the primary role of the ribosomes in a cell?

Performs protein synthesis (A) Signup and view all the answers

What differentiates prokaryotic cells from eukaryotic cells?

Prokaryotic cells have a simpler structure than eukaryotic cells. (C) Signup and view all the answers

Which part of the plant cell contains chlorophyll and facilitates photosynthesis?

Chloroplasts (B) Signup and view all the answers

What is the function of the body tube in a light microscope?

Holds the objective lens and can be rotated to change magnification.

What does 'resolution' refer to in the context of microscopes?

The ability to distinguish two very close objects from each other.