Grade 9 · Biology
Organelles, mitosis, and osmosis. Written in American English for students, parents, and teachers in the United States.
Open a card to see the answer. These are original practice items for US elementary students — not a state test copy.
Answer: water across a membrane
Water moves toward higher solute concentration.
Answer: growth and repair of body cells
Daughter cells are genetically alike.
Answer: interphase and mitosis
DNA is copied in S phase.
Answer: make proteins
They read RNA.
Answer: lack a nucleus
Their DNA is in the nucleoid region.
Answer: swell
Water enters the cell.
Answer: an energy-carrying molecule
Cells use ATP to do work.
Answer: all living things are made of cells
Cells come from other cells.
Pick the next article in this topic — that is how a magazine issue is meant to be used.
