LS Ch. 2 Introduction to Cells Test

The basic unit of structure and function in a living thing is called

• an atom
• a cell
• a tissue
• an organism

An instrument that can magnify (make larger) very small objects is

• a telescope
• binoculars
• a microscope
• a stethoscope

The cell theory states that

• all cells are produced from other cells
• atoms are the basic units of structure and function in living things
• very few living things are made of cells

Cells were first observed by

• Charles Darwin
• Robert Hooke
• Galileo
• Isaac Newton

This structure controls movement of materials into and out of a cell.

• nucleus
• ribosome
• cell wall
• cell membrane

This structure is the control center and directs all the activities of the cell.

• mitochondrion
• ribosome
• nucleus
• Golgi apparatus

This organelle is considered the "powerhouse" of the cell.

• nucleus
• cytoplasm
• lysosome
• mitochondrion

Which cellular structures are found in plant cells but not in animal cells?

• chloroplast and cell wall
• nucleus and ribosome
• Golgi apparatus and vacuole
• mitochondrion and endoplasmic reticulum

In a unicellular organism, all of the functions of life are carried out by one cell.

• True
• False

This is a group of specialized cells that work together to perform a particular function.

• tissue
• organ
• organ system
• organelle