Cell Theory
What does cell theory say all living things are made of?
Cells
What does GMO stand for?
Genetically Modified Organism
Which structure controls what enters and exits the cell?
Cell membrane
What type of transport requires no energy?
Passive transport
What is a unicellular organism?
An organism made of one cell
According to cell theory, where do new cells come from?
Pre-existing cells
How are GMOs commonly made today?
By inserting specific genes using biotechnology
Which cell structure contains DNA and controls the cell's activities?
Nucleus
What is diffusion?
Movement of particles from high to low concentration
What is a multicellular organism?
An organism made of many specialized cells
What does cell theory mean when it says the cell is the "basic unit of life"?
Cells are the smallest units that can carry out all life processes
Name one benefit of GMOs.
Higher crop yield, disease resistance, drought tolerance
Which two structures are found in a Plant cell and NOT an Animal Cell
Cell Wall, Chloroplasts
What is osmosis?
Movement of water across a semi-permeable membrane
What is the main difference between prokaryotic and eukaryotic cells?
Eukaryotic cells have a nucleus; prokaryotic cells do not
Name two needs of all living things.
Food/energy, water, gas exchange, ability to respond
Name one risk or concern related to GMOs.
Allergies, environmental impacts, reduced biodiversity
Which structure helps maintain turgor pressure in plant cells?
Large central vacuole
What happens to a cell in hypertonic solution?
It shrinks as water leaves the cell
Why do multicellular organisms need specialized tissues?
Because different cells perform specific jobs more efficiently
Explain why unicellular organisms must meet all their needs within one cell.
Because they are only made of one cell, so that cell must perform all life functions
Explain how microorganisms can be both helpful and harmful to humans.
They are useful in food production and medicine but can also cause disease
Explain how the cell wall and vacuole work together to support a plant.
Water in the vacuole pushes against the cell wall, keeping the plant rigid
Explain how, because of osmosis, you cannot give a person water in their IV.
Water would create a hypotonic solution, water would enter cells at a significant level and could cause them to burst
Which tissue protects the body and which tissue connects bones and muscles?
Epithelial tissue protects; connective tissue connects