Cell Biology Quiz

What is the smallest unit of structure and function in an organism?

• Tissue

• Organ

• Cell

• Atom

What term is used to describe any living thing?

• Organism

• Cell

• Tissue

• Atom

Which of the following is NOT a characteristic of all living things?

• Are made of cells

• Respond to their surroundings

• Use energy

• Do not reproduce

According to the cell theory, all living things are made up of one or more what?

• Atoms

• Cells

• Tissues

• Organs

Who cut a thin slice of cork and looked at it under his microscope in 1665?

• Robert Hooke

• Anton van Leeuwenhoek

• Matthias Schleiden

• Theodor Schwann

Who studied plants with the microscope in the 1830s and decided that all plants are made of cells?

• Robert Hooke

• Anton van Leeuwenhoek

• Matthias Schleiden

• Theodor Schwann

What has improved the cell theory in the past several hundred years?

• Better microscopes and scientific techniques

• Better understanding of DNA

• Improved medical practices

• Advanced computer technology

Cells come in different __________ and __________.

• shapes, sizes

• colors, textures

• lengths, widths

• temperatures, pressures

____________________: an outer covering of the cell, all cells have a membrane.

• Mitochondria

• Ribosome

• Nucleus

• Cytoplasm

• Cell membrane

***____________________: tough, rigid outer coverings that protect the cell and give it shape.

• Cell wall

• Cell membrane

• Cytoplasm

• Nucleus