Cell Diffusion: Question Preview (ID: 20873)


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The nutrient cells need is called
a) oxygen b) protein c) glucose (sugar) d) water
The oxygen and glucose that diffuses into a cell goes to which organelle to release energy?
a) mitochondria b) nucleus c) chloroplast d) vacuole
Another word for 'balanced' is
a) concentration b) diffusion c) equilibrium d) gradient
Can molecules diffuse out of the cell?
a) Yes, molecules can diffuse out of the cell. b) No, molecules can only diffuse into a cell. c) Maybe, it depends on the cell. d) What are molecules?
Which is true?
a) Nutrients diffuse from the digestive system into the bloodstream b) Oxygen diffuses from the lungs to the bloodstream c) Oxygen diffuses from the bloodstream to the cells d) all of the above
Diffusion is the movement of molecules from
a) low concentration to low concentration b) high concentration to high concentration c) low concentration to high concentration d) high concentration to low concentration
Which compound do cells need?
a) carbon dioxide b) water c) oxygen d) all of the above
Which element do cells need?
a) water b) carbon dioxide c) oxygen d) glucose
Moving of molecules from high to low concentration is
a) organ b) difference c) organelle d) diffusion
Another word for 'concentration' in reference to diffusion is
a) equilibrium b) amount c) a lot d) gradient
All cells need what to survive?
a) oxygen b) nutrients c) water d) all of the above
The outer layer in an animal cell
a) cell membrane and cell wall b) cell wall c) cell layer d) cell membrane
The function of the cell membrane is
a) support other organelles b) control what enters and exits the cell c) release energy in the cell d) help the cell go through photosynthesis
True or False? Without diffusion all cells would die.
a) true b) false c) d)
The cell membrane enables some substances to enter and exit the cell but not all substances. What type of membrane is the cell membrane known as?
a) permanent membrane b) blocking membrane c) permeable membrane d) selectively permeable membrane
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