Understanding Cell Theory

What is the basic unit of life according to cell theory?

• Organism

• Organ

• Cell

• Tissue

Who is one of the scientists credited with developing cell theory?

• Charles Darwin

• Theodor Schwann

• Albert Einstein

• Isaac Newton

What are the three main principles of cell theory?

• Cells can spontaneously generate from non-living matter.

• 1) All living organisms are composed of one or more cells. 2) The cell is the basic unit of life. 3) All cells arise from pre-existing cells.

• All cells contain DNA and RNA.

• All cells have the same structure and function.

How do cells reproduce according to cell theory?

• Cells reproduce by forming spores exclusively.

• Cells reproduce through binary fission only.

• Cells reproduce by cell division, specifically mitosis and meiosis.

• Cells reproduce by absorbing nutrients from their environment.

What type of organisms are made up of one or more cells?

• Living organisms (including unicellular and multicellular organisms)

• Only multicellular organisms

• Non-living materials

• Viruses and prions

What is the function of the cell membrane?

• The cell membrane acts as a site for protein synthesis.

• The cell membrane provides energy for cellular processes.

• The cell membrane stores genetic information.

• The cell membrane regulates the movement of substances in and out of the cell.

What is the jelly-like substance inside a cell called?

• cell membrane

• ribosome

• nucleus

• cytoplasm

What organelle is known as the powerhouse of the cell?

• Ribosome

• Chloroplast

• Mitochondria

• Nucleus

How does cell theory relate to the study of biology?

• Cell theory is only applicable to plants and not animals.

• Cell theory is fundamental to biology as it establishes that all life is cellular, guiding research and understanding of living organisms.

• Cell theory states that all organisms are multicellular.

• Cell theory suggests that cells can spontaneously generate from non-living matter.

Can viruses be considered living cells according to cell theory?

• No, viruses cannot be considered living cells according to cell theory.

• Yes, viruses are living cells according to cell theory.

• Viruses are considered living organisms by cell theory.

• Viruses can replicate independently, making them living cells.