Cell Test Review

Write the three statements that are part of the Cell Theory:

• 1. All living things are made of cells. 2. Cells are the basic unit of structure and function in living things. 3. All cells come from pre-existing cells.

• 1. All living things are made of tissues. 2. Cells are only found in animals. 3. Cells can form from non-living matter.

• 1. Only plants are made of cells. 2. Cells are the smallest living organisms. 3. Cells do not divide.

• 1. All living things are made of molecules. 2. Cells are not important for life. 3. Cells can appear spontaneously.

A scientist says, “If I add water to this plant’s soil, then it will grow taller.” This statement is an example of a _________________________.

• hypothesis

• observation

• conclusion

• experiment

When you cut your skin and it heals, it happens because _________________________.

• cells divide to repair the tissue

• blood turns into skin cells directly

• bones grow to cover the cut

• the skin dries and falls off

A statement supported by scientific evidence from repeated tests, without exception, is called a ________________________.

• scientific law

• hypothesis

• theory

• conclusion

Muscle cells are highly active and need lots of energy. They have many ________________________.

• mitochondria

• ribosomes

• lysosomes

• nuclei

In an animal cell, cell transport (controlling what enters and leaves) happens in the ________________________.

• cell membrane

• nucleus

• mitochondria

• cytoplasm

The cell membrane is best described as a layer that ______________________________.

• controls what enters and leaves the cell

• produces energy for the cell

• stores genetic information

• provides structural support like a cell wall

The outermost part of a plant cell is the ________________________.

• cell wall

• cell membrane

• cytoplasm

• nucleus

Nerve cells, muscle cells, and blood cells all look different. What is the best way to describe why they have different shapes?

• They have different shapes because they have different functions.

• They have different shapes because they are all the same type of cell.

• They have different shapes because they are found in the same part of the body.

• They have different shapes because they have the same job.

Match organelles to their function: • Cell Membrane → ____________________________ • Chloroplast → ____________________________ • Mitochondria → ____________________________

• Cell Membrane → Controls what enters and leaves the cell, Chloroplast → Site of photosynthesis, Mitochondria → Produces energy (ATP) for the cell

• Cell Membrane → Site of photosynthesis, Chloroplast → Produces energy (ATP) for the cell, Mitochondria → Controls what enters and leaves the cell

• Cell Membrane → Produces energy (ATP) for the cell, Chloroplast → Controls what enters and leaves the cell, Mitochondria → Site of photosynthesis

• Cell Membrane → Site of protein synthesis, Chloroplast → Stores genetic material, Mitochondria → Regulates cell division