Scientific Process
Characteristics of Life
Cell Structure
Transport
Energy
100
An explanation of a natural phenomenon that is supported by many experiments but can change when new discoveries are made.
What is a theory?
100
A gradual change in a species over time.
What is evolution?
100
A cell that does not have a nucleus or other membrane-bound organelles.
What is a prokaryote?
100
Transport that requires energy from the cell.
What is active?
100
This gas is produced by photosynthesis.
What is oxygen?
200
An educated guess that can be tested by doing an experiment.
What is a hypothesis?
200
Maintaining a stable internal environment.
What is homeostasis?
200
This organelle provides energy in a eukaryotic cell.
What are mitochondria?
200
Diffusion moves materials in which direction?
What is higher concentration to lower concentration?
200
This gas is produced by cellular respiration.
What is carbon dioxide?
300
The factor being tested during an experiment.
What is an independent variable?
300
Enzymes are an example of this type of biomolecule.
What is a protein?
300
A muscle cell needs more mitochondria than a fat cell for this reason.
What is it needs more energy?
300
Diffusion of water
What is osmosis?
300
An organism that can make its own food through a process like photosynthesis.
What is an autotroph?
400
The factor being measured during an experiment.
What is a dependent variable?
400
The four elements that are found in all living things.
What are carbon, hydrogen, nitrogen, and oxygen?
400
The outer boundary of a plant cell.
What is cell wall?
400
Process that moves large particles into the cell by engulfing them in the cell membrane to form a vesicle.
What is endocytosis?
400
The organelle in which photosynthesis takes place.
What is a chloroplast?
500
A set of steps used by scientists to answer questions.
What is the scientific method?
500
The four groups of biomolecules produced by living things.
What carbohydrates, lipids, proteins, and nucleic acids?
500
This structure controls movement of materials into and out of a cell.
What is the cell membrane?
500
Passive transport that requires a transport protein.
What is facilitated diffusion?
500
The organelle in which cellular respiration takes place.
What is mitochondria?
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