Life Science Review Quiz

All living organisms are made up of at least one or more __________. __________ are the basic unit of structure and function in all life forms. All __________ come from other __________.

• Waves

• Organ systems

• Cells

• Organs

Cells are made of smaller parts. These "tiny organs" inside cells are called __________.

• organ systems

• tissues

• organelles

• atoms

__________ are the organelles that break down food and release energy for the cell to use in a process called respiration. These are the "Powerhouses" of the cell.

• Golgi bodies

• Ribosomes

• Vacuoles

• Mitochondria

__________ are the storage areas inside cells. The cell can store food, water, or waste inside of these.

• Vacuoles

• Chloroplasts

• Mitochondria

• Nuclei

The __________ is the control center that directs all of the cell's activities. It contains the DNA, which makes up chromosomes and genes.

• cell membrane

• nucleus

• endoplasmic reticulum

• cytoplasm

There is a gel-like fluid that is mostly water that fills the inside of the cell and surrounds all of the organelles within. This material is called the __________.

• cytokinesis

• cytoplasm

• chloroplasm

• nucleoplasm

The __________ is the gatekeeper that controls what enters into the cell and what leaves the cell. It protects the cell from harmful substances, while allowing needed materials to come in.

• nucleus

• cytoplasm

• mitochondria

• cell membrane

The __________ gives a plant cell an extra layer of support and protection. It also gives plant cells a rigid, box-like shape. Wood is very strong because of the interlocking of many of these.

• endoplasmic reticulum

• cell wall

• golgi body

• mitochondrion

Plant leaves look green because of the presence of many __________ within their cells. This is where photosynthesis happens to make food.

• chloroplasts

• vacuoles

• ribosomes

• mitochondria

The presence of __________ would tell you that you are looking at a plant cell and not an animal cell.

• a cell membrane, cytoplasm, and mitochondria

• a nucleus, ribosomes, and cytoplasm

• chloroplasts, a cell wall, and one large vacuole

• mitochondria and a nucleus