Vocabulary
A statement of fact made by using your senses or data.
What is an observation?
We can use a ________ to observe microorganisms.
What is a compound light microscope?
Which type of cell is evolutionarily older?
Prokaryote
True or false: Scientific theories can include opinions and gut feelings about the given topic.
False
The smallest and least complex structure of life
What is a cell?
True or false: Viruses are considered biotic.
Identify the locations of DNA in both types of cells
In prokaryotes: free-floating, in cytoplasm
In eukaryotes: inside nucleus
Scientific theories are backed with extensive _________ and ___________
research and evidence
Sand, water, and sunlight are all _______ factors of the beach.
What is abiotic?
A sperm and egg fertilization is an example of:
Bonus: Give an example of the other type.
What is sexual reproduction?
BONUS: Bacteria, sponge, amoeba
The greek translation of pro- is _____
The greek translation of eu- is _____
pro = before
eu = true
Both referring to nucleus
Name the three statements of Robert Hooke's Cell Theory:
All living things are composed of one or more cells
The cell is the smallest unit of life
All cells come from pre-existing cells
Eukaryotic cells have more ____________ within them than prokaryotic cells.
BONUS: There are three of these that they have in common...
What are organelles?
BONUS: cytoplasm, cell membrane, ribosomes
Name the 6 major characteristics of life.
made of cells, responds to environment, grows and develops, maintains homeostasis, reproduces, has complex chemistry
The tail-like structure on the end of bacillus bacteria is called
Flagellum
Which cell theory statement keeps this a theory and not a law?
All living things are composed of one or more cells
The cell is the smallest unit of life
All cells come from pre-existing cells
BONUS: Accurately describe why you chose this statement.
3. All cells come from pre-existing cells.
Bonus: We can only infer where the first cells came from, but we cannot confirm this with 100% certainty.
Prokaryotic organisms are all (uni/multi)cellular.
Unicellular
Claim: Bacteria are not living because they are only made of one cell. Name two pieces of evidence that support or refute this statement.
cell = living
Bacteria go through asexual reproduction
Single cell = must maintain homeostasis within, complex chemistry
Can grow better in moist, damp, hot, cold, dry environments
Which two organelles were theorized to have once been ancient prokaryotic organisms?
BONUS: One piece of evidence for this is…
Chloroplast, mitochondria
- double membrane
-own DNA
- divides independently of cells
- makes own proteins
Complete the following sentence: The endosymbiotic theory states that…
eukaryotic organelles, specifically the mitochondria and chloroplast, originated from ancient prokaryotic cells that were engulfed by a larger host cell.