What are the main points of the cell theory?

Cells are the basic units of structure and function in living things., All living things are made up of cells., New cells are produced from existing cells.

How does active transport work?

By moving materials against a concentration gradient using energy.

How do microscopes work?

By using beams of light or electrons to produce magnified images.

How do the final images of transmission and scanning electron microscopy differ?

Scanning electron microscopy images appear three-dimensional., Transmission electron microscopy images appear flat and two-dimensional.

How do single-celled organisms maintain homeostasis?

growing, responding to environment, transforming energy, and reproducing.

What organelles help make and transport proteins and other macromolecules?

Ribosomes and endoplasmic reticulum

What is the function of the cell membrane?

regulates what enters and leaves the cell and protects athe cell.

How does passive transport work?

By moving molecules across the cell membrane without using cellular energy.

How do prokaryotic and eukaryotic cells differ?

Eukaryotic cells have a nucleus., Prokaryotic cells do not have a nucleus.

How do the cells of a multicellular organism work together to maintain homeostasis?

By being specialized for specific tasks and communicating with one another.

What is the role of the cell nucleus?

It is the control center of the cell.

What are the functions of chloroplasts and mitochondria?

Chloroplasts capture energy from sun mitochondria convert chemical energy

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Cell Biology Basics

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Test your knowledge on fundamental concepts of cell biology, including cell theory, cell structures, microscopy, transport mechanisms, and cellular functions.

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Questions 14

Answers

1
What are the main points of the cell theory?
Cells are the basic units of structure and function in living things.
Cells can be created from non-living matter.
All living things are made up of cells.
New cells are produced from existing cells.
2
How does active transport work?
By storing waste products.
By moving materials along a concentration gradient without using energy.
By moving materials against a concentration gradient using energy.
By producing energy for the cell.
3
How do microscopes work?
By using chemical reactions to visualize samples.
By using magnetic fields to magnify objects.
By using sound waves to create images.
By using beams of light or electrons to produce magnified images.
4
How do the final images of transmission and scanning electron microscopy differ?
Scanning electron microscopy images appear three-dimensional.
Scanning electron microscopy images are always black and white.
Transmission electron microscopy images are always in color.
Transmission electron microscopy images appear flat and two-dimensional.
5
What are the functions of vacuoles, lysosomes, and the cytoskeleton?
Protein synthesis, lipid production, and detoxification
Energy production, movement, and communication
Storage, cleanup, and support
Photosynthesis, respiration, and digestion
6
How do single-celled organisms maintain homeostasis?
By producing energy for multicellular organisms.
By communicating with other cells.
growing, responding to environment, transforming energy, and reproducing.
By forming tissues and organs.
7
What organelles help make and transport proteins and other macromolecules?
Lysosomes and vacuoles
Golgi apparatus and cytoskeleton
Ribosomes and endoplasmic reticulum
Mitochondria and chloroplasts
8
What structure distinguishes eukaryotes from prokaryotes?
Ribosomes
Cell membrane
Cytoplasm
Nucleus
9
What is the function of the cell membrane?
It stores genetic information.
It produces energy for the cell.
regulates what enters and leaves the cell and protects athe cell.
It helps the cell move.
10
How does passive transport work?
By producing energy for the cell.
By using cellular energy to move molecules across the cell membrane.
By storing waste products.
By moving molecules across the cell membrane without using cellular energy.
11
How do prokaryotic and eukaryotic cells differ?
Prokaryotic cells are generally larger and more complex.
Eukaryotic cells have a nucleus.
Eukaryotic cells are generally smaller and simpler.
Prokaryotic cells do not have a nucleus.
12
How do the cells of a multicellular organism work together to maintain homeostasis?
By living independently and not interacting with other cells.
By being specialized for specific tasks and communicating with one another.
By forming a single large cell.
By producing energy for single-celled organisms.
13
What is the role of the cell nucleus?
It is the control center of the cell.
It produces energy for the cell.
It stores waste products.
It helps the cell move.
14
What are the functions of chloroplasts and mitochondria?
Chloroplasts help in cell division and mitochondria detoxify drugs.
Chloroplasts transport materials and mitochondria store waste products.
Chloroplasts capture energy from sun mitochondria convert chemical energy
Chloroplasts store genetic information and mitochondria produce proteins.

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