Mix
How scientist solve problems
Scientific Method
How many components are there to The Cell Theory?
3
Who discovered bacteria?
Anton van Leeuwenhoek
What is an educated guess or prediction based on observations?
Hypothesis
While asleep, your brain uses over 60% of your body's energy reserve during the REM sleep state.
This is an example of what characteristic of life?
Energy Use / Metabolism
Is there anything smaller than the cell that can be considered a living thing?
No, the cell is the smallest unit of life.
This invention led to the discovery of cells?
Microscope
Who was the person that coined the term "cells"?
Robert Hooke
In a controlled experiment, the results from the experimental group are compared to the _________ group?
Control
Are seeds living things? Example apple seeds, acorns
Of course they're living? Try to plant one.
Chemotaxis is the movement of cells towards nutrients in their environment. Chemotaxis is an example of what characteristic of life?
Responding to the environment
While looking at feces and dental plaques, Anton Leeuwenhoek so tiny, single-celled organisms that were later called ____________
Bacteria
True/ False
Anton Leeuwenhoek said that all plants are made of cells
false
The experimenter manipulates or changes this variable to see how it might impact results.
Independent Variable
Homeostasis
Living things must come from___
Other living things
After observing cellular division, he concluded that cells come from pre-existing cells.
Rudolf Virchow
Which of the following scientists concluded that all animals are made of cells?
Theodor Schwann
In the Scientific Method, what comes after forming a hypothesis?
Performing an experiment
The process of growth and repair is characterized by what process?
Cellular division / reproduction
What are the two modes of reproduction?
Sexual / Asexual
What are the three parts of The Cell Theory
1) Cells are a basic unit for structure and function for living things.
2) Cells are made up of pre-existing cells.
3) All living things have one or more cells.
Did each scientist discover something different about cells? If yes, explain.
Yes
Theodor Schwann: all animals are made of cells.
Anton van Leuwenhoek: first to observe bacteria under a microscope
Robert Hooke: Cells on a cork
Rudolf Virchow: Pre-existing cells
Matthias Schleiden: Cells are the basic unit of structure in living things.
Your hypothesis must be written in a way that makes it ______
Testable
What are the levels of organization in multicellular organisms in order from smallest to largest
cell, tissues, organs, organ systems, organism