Back To The Teria (NOT DONE) Flashcards
What are features of Eukaryotic cells
- Have true nucleus
- Have chromosomes
- Generally multicellular organisms
- Have membrane bound organelles
- 80s Ribosomes
- Can have cilia and flagella (more complex than prokaryotic)
- 1 - 100 micrometers
What fills the nucleus?
Nucleoplasm
What is the main function of the nucleus?
To store DNA.
What is a nucleolus?
Dense area of cytoplasm where ribosomes are made.
What is the function of the endoplasmic reticulum.
More complex molecules are synthesized. The smooth ER makes lipids while the rough ER makes proteins. These can be pinched off in a vesicle.
What is the function of the Golgi body?
- Stores molecules in our cells
- concentrate molecular
- can alter molecules
- can also create vesicles to send stuff outside body
What is the function of the Mitochondrion
- Location of most cellular respiration
- Produces ATP for the cell
- Membrane bound
- Double membrane
What is the function of the chloroplast?
Site of photosynthesis
What is the function of vacuole?
Membrane bound storage
What is the function of the Vessicle?
Transports “stuffs” around/outside cell
What is the function of the lysosome?
Suicide Sac!!!
What is Endosymbiosis?
Mitochondria and chloroplasts used to be Prokaryotes
Who discovered Endosymbiosis?
Lynn Margalis
Why is the evidence for endosymbiosis?
- Similar size
- Membranes
- DNA in ring
- Have 70S Ribosomes
- Asexual reproduction
What does DNA do?
Pass on traits
What do ribosomes do
- Found in cytoplasm
- Found on ER
- Reads RNA
- A group of Ribosomes is called a Polysome
What is A cytoskeleton
- A complex web of Microfilaments
- Transport
- Shape
- Cytoplasmic Streaming
Cytoplasm (cytosol)
- Colloid
- Holds all the organelles
What are centrioles
- Made of Microfilaments
- Facilitate transport in cytoplasm
- Help move chromosomes around in cell division
- Helps in formation of Cilia/flagellum
What does a cell wall do
- Found & fungi have this
- Made of cellulose in plants
- Made of chitin in fungi
- used for support and protection
- Have Openings for the transfer of materials called plasmodesmata
What are features of Prokaryotic cells
- Nucleoid
- DNA is in a single strand and found in a ring
- generally single celled
- Lack membrane bound organelles
- Bacteria can have huge rings of DNA called plasmids
- 70s Ribosomes
- Can have Cilia & Flagella
- Cell wall made of peptidoglycan
- 1 - 10 micrometers
