From a Cell to an Organism

Mitosis is the stage of the cell cycle during which

• the cell's nucleus divides into two new nuclei

• the cell's DNA is replicated

• the cell divides into two new cells

• the cell's cytoplasm divides

What happens during cytokinesis in animal cells?

• a new round of mitosis begins

• two new daughter cells are formed

• each organelle divides into two parts

• a cell plate forms in the middle of the cell

What are chromatids?

• identical strands of chromosomes

• identical daughter cells

• doubled rods of condensed chromatin

• pigments that absorb the energy in sunlight

The stage of the cell cycle the follows mitosis is called

• interphase

• metaphase

• cytokinesis

• telophase

Which are unspecialized cells?

• blood cells

• muscle cells

• nerve cells

• stem cells

Groups of cells are organized to form ___________________________.

• carbon dioxide

• elements

• organ systems

• tissues

Your heart is an example of a(n) _______________________.

• organ

• tissue

• organ system

• protein

Why is the cell cycle important?

• it enables organisms to grow, develop, and maintain healthy cell tissue

• it causes fertilization of eggs, enabling sexual reproduction

• it regulates the use of nutrients and energy by organisms

• it determines the fate of undifferentiated stem cells in organisms

Which is not a type of plant tissue?

• dermal

• ground

• connective

• vascular

What is cell differentiation?

• the interaction of cells from different organ systems

• the process by which cells grow

• the process by which cells divide

• the process by which cells become different types of cells