While observing an Elodea plant cell through a microscope, a student noticed some small, moving green disks. These organelles were most likely which of the following?
Chloroplasts
100
A plant has been removed from its natural environment and placed into a body of water that contains more salt than the inside of each plant cell. This situation is most similar to which of the following events?
A freshwater plant put into sea water
100
What would happen to a marine protozoan if removed from its normal habitat and placed into a freshwater pool?
Gain of Water through osmosis
100
Why are viruses considered parasites?
They destroy the cells in which they multiply.
200
At which organelle are proteins manufactured?
Ribosomes
200
While cleaning a saltwater aquarium, students placed the aquarium plants in a container of distilled water. What effect will this have on the plants?
The plant cells will swell
200
What regulates the flow of water through a cell membrane?
The concentration of solutes
200
What helps an amoeba move, known as the "false foot?"
Psuedopod
200
Which term refers to the process by which individuals that are better adapted to their environment are more likely to survive and reproduce?
Natural Selection
300
The major difference between prokaryotic and eukaryotic cells is the presence or absence of which of the following?
Membrane-bound organelles
300
What would happen to a marine protozoan if removed from its normal habitat and placed into a freshwater pool?
Gain of water through osmosis
300
Which of the following statements concerning diffusion and active transport is correct?
Active transport requires cell energy while diffusion does not.
300
Definition: Viral reproduction in which virus multiplies quickly inside host cells until flu.
Lytic Cycle
300
Which of the following is one of the main ways that a new species forms?
A group is separated from the rest of the species.
400
What is the function of a cell’s selectively permeable membrane?
To control materials entering and leaving the cell
400
___________ are membrane-bound spaces for tempoary storage in cells.
Vacuoles
400
How does a virus reproduce?
Lytic and Lysogenic Cycle
400
Who was the naturalist that came up with natural selection?
Charles Darwin
500
Which of the following is found only in eukaryotic cells?
Mitochondria
500
What kingom are plants in?
Plantae
500
The protective layer around all cells is called the ____________.