Discovering the Cell: A Journey Through Microscopy and Biology

What did Robert Hooke observe that led him to coin the term "cell"?

• Bacteria in pond water

• Muscle fibers in meat

• Tiny chambers in cork

• Single-celled organisms

Anton van Leeuwenhoek is best known for his work with:

• Developing the first compound microscope

• Discovering bacteria

• Co-founding the cell theory

• Identifying the nucleus in cells

Theodore Schwann contributed to cell theory by stating that:

• All plants are made of cells

• Only animals are composed of cells

• Both plants and animals are composed of cells

• Cells can only come from pre-existing cells

Which of the following is NOT a component of the cell theory?

• All living things are made of cells

• Cells are the basic unit of structure and function in living things

• All cells come from pre-existing cells

• Cells can only be seen with an electron microscope

What is the primary function of the cell membrane?

• To provide structural support to the cell

• To control the movement of substances in and out of the cell

• To perform photosynthesis

• To store genetic information

Which organelle is known as the "powerhouse of the cell" because it produces energy?

• Nucleus

• Chloroplast

• Mitochondria

• Endoplasmic reticulum

Osmosis is a type of cell transport that involves:

• The movement of solutes from an area of high concentration to an area of low concentration

• The movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration

• The active transport of ions against the concentration gradient

• The engulfing of large particles by the cell membrane

What is the role of the cell wall in plant cells?

• To control the movement of substances in and out of the cell

• To conduct photosynthesis

• To provide structural support and protection

• To store energy

Which of the following is a function of proteins in the cell membrane?

• Storing genetic information

• Providing energy for the cell

• Acting as channels and carriers for molecules

• Performing photosynthesis

Mathias Schleiden contributed to the cell theory by asserting that:

• All living things are composed of cells

• Only animals are made up of cells

• All plants are made of cells

• Cells are the basic unit of life in all living things