Science Study Guide: Multiple Choice

What is the basic unit of structure and function in living things?

• Nucleus

• Organism

• Cell

What controls what enters and leaves a cell?

• Vacuole

• Nucleus

• Cell membrane

What part of the cell releases energy for its activities?

• Nucleus

• Mitochondria

• Cell wall

What is the jellylike substance that gives a cell its shape and holds its parts?

• Cytoplasm

• Chloroplast

• Mitochondria

What surrounds and protects a plant cell?

• Cell wall

• Cell membrane

• Nucleus

What is the term for the highness or lowness of a sound?

• Frequency

• Pitch

• Volume

What is the term for the loudness of a sound?

• Volume

• Pitch

• Frequency

What is the distance from one crest to the next crest in a wave called?

• Amplitude

• Sound

• Wavelength

What describes the amount of energy in a wave?

• Wavelength

• Amplitude

• Frequency

What kind of waves are light waves?

• Ocean waves

• Electromagnetic waves

• Transverse waves