Download 1 cell (tiny!)

Classifying Recap
How can we sort
organisms?
Prokaryotes: • No “membrane
bound organelles”
• 1 cell (tiny!)
• No organelles (except
for the ribosome)
• Circular
chromosomes
• Example: bacteria
Eukaryotes:
• Nucleus & all
organelles
• many cells
• Straight
chromosomes
• Examples: people,
plants
Prokaryote, Eukaryote
or Both?
Bacteria
Humans
Nucleus
Ribosomes
Membrane-bound
organelles
Circular chromosomes
Unicellular:
1 cell (tiny!)
Example: bacteria
Vs.
Multicellular:
Many cells
Example: animals
Unicellular or
Multicellular?
Autotroph:
Makes its own
food from
sunlight
• Uses
photosynthesis
• Example: plants
Heterotroph: Consumes other
organisms
• Example:
animals
Autotroph or
Heterotroph?
Plant
Animal
Does photosynthesis
Eats other organisms
Asexual:
Reproduction with 1
parent
• Divides in half
(mitosis!)
• Examples: amoeba,
bacteria
Sexual:
Reproduction with 2
parents (meiosis!)
• Examples: plants,
animals
Asexual or sexual?
An amoeba divides in
half
Gametes (egg and
sperm)
meiosis
Exit Ticket
•
•
•
List two major differences and two
similarities between a prokaryote and a
eukaryote.
List two major differences and two
similarities between an autotroph and a
heterotroph.
List two major differences and two
similarities between sexual and asexual
reproduction.
Exit Ticket
•
•
A bacterium... (write down one in each pair)
•
•
•
is a(n) prokaryote/eukaryote
is a(n) autotroph/heterotroph
reproduces sexually/asexually
A plant... (write down one in each pair)
•
•
•
is a(n) prokaryote/eukaryote
is a(n) an autotroph/heterotroph
reproduces sexually/asexually
Exit Ticket
•
HOT Question: Modified AP Prompt
Discuss the evolutionary relationship
between one of the pairs below. Make
sure to explain the structural adaptations
and the functional significance.
•
•
•
Pair A: moss vs. a rose
Pair B: prokaryotes vs. eukaryotes
Pair C: pine tree vs. cactus