Cell and Levels of Organization

What is the basic unit of life?

• cell

• organism

• molecule

• atom

Name the two main types of cells.

• prokaryotic cells and eukaryotic cells

• nerve cells and muscle cells

• red blood cells and white blood cells

• animal cells and plant cells

What are the functions of cells?

• The functions of cells include producing hormones and enzymes, regulating body temperature, and maintaining homeostasis.

• The functions of cells include transmitting nerve impulses, producing antibodies, and filtering waste products.

• The functions of cells include providing structure and support, converting nutrients into energy, storing genetic information, and carrying out specialized functions in multicellular organisms.

• The functions of cells include absorbing nutrients, eliminating toxins, and regulating blood sugar levels.

What are the levels of organization in living organisms?

• cells, tissues, organs, organ systems, and organisms

• atoms, molecules, cells, tissues, and organs

• cells, tissues, organs, organ systems, and organisms

• genes, chromosomes, cells, tissues, and organs

Which type of cells lack a nucleus?

• White blood cells

• Nerve cells

• Muscle cells

• Red blood cells

Which type of cells have a nucleus?

• Eukaryotic cells

• Animal cells

• Bacterial cells

• Prokaryotic cells

What are the differences between prokaryotic and eukaryotic cells?

• Prokaryotic cells have a higher level of organization than eukaryotic cells.

• Prokaryotic cells have a larger size than eukaryotic cells.

• The main differences are the presence of a nucleus and membrane-bound organelles.

• Prokaryotic cells have a more complex internal structure than eukaryotic cells.

Name three examples of cellular organelles.

• lysosome

• mitochondria, endoplasmic reticulum, Golgi apparatus

• nucleus

• ribosome

What is the function of the mitochondria?

• The function of the mitochondria is to store genetic information.

• The function of the mitochondria is to regulate cell division.

• The function of the mitochondria is to produce oxygen.

• The function of the mitochondria is to produce energy.

What is the function of the nucleus?

• Store and protect the genetic material (DNA) of the cell

• Control cell division

• Produce proteins for the cell

• Generate energy for the cell