Cell Theory and Characteristics of Life

Front

What is the first part of the cell theory?

Back

All living things are made up of one or more cells.

Front

What is the second part of the cell theory?

Back

Cells are the smallest unit of life.

Front

What is the third part of the cell theory?

Back

All new cells come from pre-existing cells.

Front

What is one of the seven characteristics of life?

Back

1. Living things are made of cells. 2. Living things are organized. 3. Living things grow and develop. 4. Living things reproduce. 5. Living things respond to stimuli. 6. Living things maintain internal conditions. 7. Living things use energy.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells do not have a nucleus or other membrane-bound organelles, while eukaryotic cells do.

Front

Who were the scientists responsible for developing the cell theory?

Back

Matthias Schleiden, Theodor Schwann, and Rudolf Virchow contributed to the development of the cell theory.

Front

How do unicellular and multicellular organisms differ?

Back

Unicellular organisms consist of a single cell that performs all life functions, while multicellular organisms are made of many specialized cells working together.

Front

What is homeostasis and why is it important for living organisms?

Back

Homeostasis is the process by which living organisms maintain stable internal conditions necessary for survival, such as temperature and pH balance.

Front

How do living things obtain and use energy?

Back

Living things obtain energy from food or sunlight and use it to carry out life processes such as growth, repair, and movement.