cell theory quiz

According to cell theory, all ​ (a)   are made of ​cells, cells are the smallest units of life, and all cells come from other ​ (b)   .

• living things
• cells

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Select all that apply: Which of the following types of cells have a nucleus?

• bacteria

• plants

• prokaryotes

• eukaryotes

Answer explanation

Eukaryotes have a nucleus. Plants, animals, fungi and protists are all eukaryotes.

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Why did Robert Hooke name the cork cells he saw "cellulae"?

• He thought they would be offended

• He thought they looked like little rooms

• He thought they came from a plant

• He thought they were not dead

Answer explanation

Robert Hooke observed dead, cork cells. All he could see were the cell walls.

They looked to him, like the walls of the rooms that monks lived in, called "cells."

Where do cells come from?

• other cells

• the air

• water

• outer space

Answer explanation

According to cell theory, all cells come from other cells.

Scientists still don't have an answer for where the first cell came from!

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Before Cell Theory was fully developed, where did many people think that living things came from?

• spontaneous generation

• fairy dust

• magic

• eggs

According to cell theory, what do each of the following organism have in common?

• They can all reproduce by spontaneous generation

• Each organism is able to photosynthesize

• Cells are the basic unit of structure for each organism

• They are all made up of the same kinds of atoms

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Many scientist's observations brought about the principles of the cell theory. One of the principles of the cell theory is that cells --

• are the basic unit of life

• are only found in multicellular organisms

• contain organelles

• are only found in prokaryotic organisms

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The picture below shows a living organism

• a cell, the basic unit of life according to cell theory

• an organelle, that controls the functions of cells

• a tissue with multiple organs inside

• a nonliving structure that cannot reproduce according to cell theory

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Which diagram correctly models the cell theory?

• 
• 
• 
• 

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Which of the following characteristics is true of all organisms?

• are composed of at least one cell

• have organized cell nucleus

• have a cell wall

• can create their own energy

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