Unit 3 Test Flashcards
What organelle determines which category a cell falls into?
Nucleus
Which type of cells contain a nucleus?
Eukaryotes
Which type of cells do not contain a nucleus?
Prokaryotes
Describe prokaryotic cells
Cells that don’
Describe eukaryotic cells
What is meant by the term “highly specialized”?
Eukaryotes
What are the two main sections of a eukaryotic cell?
The nucleus and the cytoplasm
What are the organelles that are used to make proteins?
Nucleolus, ribosomes, and ER
What is the nucleolus?
The region where ribosomes are produced
What organelles store materials, clean up up the cell, and provide support?
Lysosomes, vacuoles, and cytoskeleton
What organelles provide energy?
Mitochondria and chloroplasts
What 2 organelles are specifically found in plant cells and not animal cells?
Chloroplast and cell wall
What is the cell membrane composed of?
Phospholipid bilayer
What is meant by the term selectively permeable
Something that picks and chooses what goes in and out
Why is selective permeability important?
Because it determines what’s good to inside and what’s not good to go inside the cell to protect it
What are the 2 parts of a phospholipid?
Bilayer = 2 layers of lipids
What does the term hydrophilic mean? Which piece is hydrophilic?
Hydrophilic means loves water, and the head is
What does the term hydrophobic mean? Which piece is hydrophobic?
Hydrophobic means hate and fear water and the tail is
What are the 2 points of the fluid mosaic model?
- flexible and able to move with the cells activity
- embedded with other molecules within it
What is passive transport?
Movement of molecules without energy
What are 3 examples of passive transport?
- Diffusion
- Facilitated Diffusion
- Osmosis
Which type of passive transport is specific to water?
Osmosis
What is hypertonic solution?
What is it’s state when water’s moving?
What’s it size?
- It has high solute concentration
- Water’s moving out
- Shrinking
What is hypotonic solution?
What is it’s state?
Size?
- It has lower solute concentration
- Water’s moving out
- Swelling
What is isotonic solution?
State?
Size?
- Concentration of solute is the same inside
- In and out
- Stays the same
What are 2 types of active transport?
- Endocytosis
- Exocytosis
What organelle determines which category a cell falls into?
Nucleus
Which type of cells contain a nucleus?
Eukaryotes
Which type of cells don’t contain a nucleus?
Prokaryotes
Describe prokaryotic cells
Cells that do not contain a nucleus
Describe eukaryotic cells
Cells that do have a nucleus
What is meant by the term “highly specialized”?
Eukaryotes
What are the 2 main sections of a eukaryotic cell?
Nucleus and cytoplasm
What is the nucleolus?
The region where ribosomes are produced
What are the organelles that are used to make proteins?
Nucleolus, ribosomes, and ER
What organelles store materials, clean up the cell, and provide support?
Lysosomes, vacuole, and cytoskeleton
What organelles provide energy?
Mitochondria and chloroplasts
