Cell Theory
What is the basic unit of structure and function in living things?
The cell
What structure gives plant cells shape and support but is not found in animal cells?
Cell wall
Osmosis is the diffusion of what?
Water
Does passive transport require energy?
No
Does active transport require energy?
Yes (ATP)
All living things are made of one or more ___?
Cells
What organelle controls the cell’s activities and holds DNA?
Nucleus
Water moves from high solute concentration to low solute concentration — true or false?
False
Movement of small molecules from high to low concentration is called ______?
Diffusion
Active transport moves materials from ___ to ___ concentration.
Low to High
Which type of cell has a nucleus: prokaryote or eukaryote?
Eukaryote
What organelle produces energy (ATP) for the cell?
Mitochondria
A cell placed in distilled water (more solute inside cell) will do what?
Swell / water moves into cell
What type of passive transport uses a channel protein to help molecules cross?
Facilitated Diffusion
What protein structure is used to pump molecules against the gradient?
Molecular pumps / protein pumps
What structure controls what enters and leaves the cell?
Cell membrane
What organelle packages and ships proteins?
Golgi apparatus/body
A cell placed in salt water (more solute outside) will do what?
Shrink / water moves out
What property of the cell membrane allows small molecules to easily pass through in osmosis and diffusion?
Semi-permeable (selectively permeable)
Engulfing large particles into a cell using vesicles is called ___?
Endocytosis
Cells come from ___?
Other cells
What organelle is the site of protein synthesis?
Ribosomes
What is it called when the cell’s inside and outside have equal solute?
Isotonic
How does osmosis help a cell maintain homeostasis?
By balancing water inside and outside the cell.
What type of active transport releases large materials out of the cell?
Exocytosis