Cell Structure and Function Concepts

Cell theory is a fundamental concept in biology, consisting of three main principles: all living things are composed of cells, cells are the basic units of all organisms, and all cells arise from pre-existing cells. These principles were established through scientific observations and the development of the microscope. Cells form tissues and systems, and they pass genetic information to their offspring, ensuring continuity of life.

What is the foundation of cell theory?

• Chemical reactions in cells

• Experiments on plants

• Studies of animal behavior

• Observations and hypotheses by scientists

Which of the following is true about all living organisms?

• They are made of atoms

• They are made of molecules

• They are made of tissues

• They are made of cells

What is the basic unit of all organisms?

• Systems

• Organs

• Cells

• Tissues

How do cells contribute to the formation of tissues?

• Cells do not form tissues

• Cells form organs directly

• Cells work together

• Cells work independently

From where do new cells originate?

• From non-living matter

• From pre-existing cells

• From spontaneous generation

• From chemical reactions

What do all cells pass on to their offspring?

• Proteins

• Energy

• Nutrients

• Genetic information

What type of genetic material do cells transfer?

• Proteins

• Lipids

• DNA or RNA

• Carbohydrates