Cell Theory

What is the role of Theodor Schwann in the development of the Cell Theory?

• He discovered the nucleus in cells.

• He proposed that all animals are made of cells, contributing to the formulation of the Cell Theory.

• He was the first to observe microorganisms under a microscope.

• He formulated the laws of heredity.

What is the Cell Theory?

• All living organisms are composed of cells, cells are the basic unit of life, and all cells arise from pre-existing cells.

• Cells are the smallest unit of matter and cannot be created or destroyed.

• All cells contain a nucleus and are surrounded by a cell membrane.

• Living organisms can arise from non-living matter.

What is the significance of the statement 'all cells come from other living cells'?

• It indicates that cells can arise spontaneously from non-living matter.

• It emphasizes that new cells are produced from existing cells, highlighting the continuity of life.

• It suggests that all living organisms are made up of a single cell.

• It implies that cells can exist independently without any connection to other cells.

Which scientist did NOT contribute to the Cell Theory?

• Albert Einstein

• Robert Hooke

• Theodor Schwann

• Rudolf Virchow

What is a eukaryotic cell?

• A simple cell without a nucleus.

• A complex cell that contains a nucleus and membrane-bound organelles.

• A type of prokaryotic cell found in bacteria.

• A cell that lacks membrane-bound organelles.

Which scientist is known for his work with single-celled organisms and is often referred to as the father of microbiology?

• Louis Pasteur

• Robert Koch

• Anton van Leeuwenhoek

• Joseph Lister

What is the basic unit of life according to the Cell Theory?

• The atom.

• The molecule.

• The cell.

• The tissue.

What is the function of chloroplasts in plant cells?

• Chloroplasts convert solar energy into chemical energy stored in food through the process of photosynthesis.

• Chloroplasts are responsible for cellular respiration in plant cells.

• Chloroplasts help in the absorption of water and nutrients from the soil.

• Chloroplasts provide structural support to the plant cell.

What is the primary tool used to observe cells?

• A magnifying glass

• A microscope

• A telescope

• An endoscope

What is the role of ribosomes in a cell?

• Ribosomes are responsible for energy production in the cell.

• Ribosomes are responsible for protein synthesis in the cell.

• Ribosomes are involved in DNA replication.

• Ribosomes help in the transport of materials within the cell.