Chapter 6 Review Assignment

Which image (a, b, or c) shows the sea urchin as a mature multicellular organism?

• a

• b

• c

What process is being illustrated in these images?

• Photosynthesis

• Cellular Division

• Respiration

A sexually reproducing organism begins as a ______.

• zygote

• gamete

• embryo

• spore

Through trillions of controlled cell divisions, the ______ develops into a complex organism.

• zygote

• mitochondrion

• nucleus

• ribosome

All body cells originate from a single cell and carry the ______, the complete set of DNA.

• genome

• chromosome

• enzyme

• membrane

The cell cycle is the orderly sequence of stages a cell goes through to ______ and ______.

• grow and divide

• shrink and disappear

• rest and sleep

• move and jump

The cell cycle ensures

• The storage of genetic information in the nucleus.
• The proper division and replication of cells.
• The synthesis of proteins in the cytoplasm.
• The growth of tissues in plants.

The cell cycle includes which of the following phases?

• G1, S, G2, and M phases

• Prophase, Metaphase, Anaphase, Telophase

• Interphase, Cytokinesis, Apoptosis

• G0, G1, S, and Z phases

Cancer arises when the cell cycle is ______, leading to uncontrolled cell growth.

• disrupted

• regulated

• shortened

• completed

Mutations in genes regulating the cell cycle (like tumor suppressors or proto-oncogenes) can lead to ______ formation.

• tumor

• enzyme

• hormone

• membrane