Model Cell Systems Practice Test

Study the simplified cell system model (interactions shown by arrows; not exact scale):

Nucleus → Ribosomes → Proteins → Cell membrane

Mitochondria → Energy → Proteins

Which claim about the cell system is incorrect?

Look at the simplified cell system model (shows interactions, not exact scale). A teacher says, “This model shows the cell works as a system because multiple parts coordinate.”

Model arrows:

Nucleus → Ribosomes → Proteins

Proteins → Cell membrane

Mitochondria → Energy → Proteins

Choose the ONE supported system explanation.