Diffusion Through a Membrane
Q: What color change shows that iodine diffused into the model cell?
A:blue-black
Q Who were one of the three scientists who contributed most to the development of cell theory?
A: Schleiden, Schwann, and Virchow
Q: Which type of cell has a nucleus: prokaryotic or eukaryotic?
A: Eukaryotic cells
Which type of cell has a cell wall: plant or animal?
Animal
Q: Which type of transport requires energy: passive or active?
Active Transport
Q: Why didn’t the starch leave the dialysis tubing?
A: Starch molecules are too large to pass through the membrane.
Q What does the cell theory say about where cells come from?
A: All cells come from pre-existing cells.
Q: Name one example of a Eukaryotic organism.
A: Viruses OR Fungi
Q: Which type of cell contains chloroplasts for photosynthesis?
Plant Cells
Q: In which type of transport do molecules move from high to low concentration?
Passive transport
Q: What do you add to a solution to test for glucose
A: Add Benedict’s solution
Q True or False – Viruses are considered living because they are made of cells.
A: False – Viruses are not made of cells, so they are not living by cell theory standards.
Q: Which type of cell contains membrane-bound organelles?
A: Eukaryotic cells
Q: True or False – Animal cells have a large central vacuole.
A: False – Plant cells have a large central vacuole; animal cells have small vacuoles.
Q: Give one example of passive transport.
A: Diffusion, osmosis, or facilitated diffusion
Q: What happened to red onion cells in salt water?
A: They shrank
Q According to cell theory, what is the smallest unit that can carry out life functions?
The Cell
Q: True or False – Both prokaryotic and eukaryotic cells have DNA and a cell membrane.
A: True
Q: What structure do both plant and animal cells use to control what enters and leaves the cell?
Cell membrane
Q: Give one example of active transport.
A: Endocytosis, exocytosis
Q: What evidence showed that glucose diffused out of the model cell?
A: The beaker water tested positive with Benedict’s solution OR turned orange after heating
Q What two types of organisms are made of cells according to cell theory?
A: Unicellular and multicellular organisms
Q: Are human cells prokaryotic or eukaryotic?
Eukaryotic
Q: Which type of cell is more likely to be round or irregular in shape?
Animal cells
Q: True or False – Active transport can move molecules against the concentration gradient.
True