Should scientists be allowed to manipulate cells to create new life forms, even if there are unknown risks to society?
What is the smallest unit of life?
Cells are the smallest unit of life and are found in all living things. Cells are made up of smaller parts that work together to keep the organism alive. Cells come in many shapes and sizes, and each type of cell has a special job to do.
Cells - The Building Blocks of Life
Cell: A small, microscopic structure that is the basic unit of life. Cells are made of various components including a nucleus, mitochondria, and cell membrane. Organelles: Small structures within a cell that have specific functions. Examples include the nucleus, mitochondria, and ribosomes. Cell Theory: A scientific theory that states that all living organisms are composed of cells, cells are the basic unit of life, and cells come from pre-existing cells.
Most of the cells in the human body are red blood cells, which are too small to be seen without a microscope. Cells are so small that a single drop of liquid contains millions of them. Cells are able to communicate with each other by releasing and detecting chemical signals.
Did you know?
What is the purpose of cells?
What are the differences between plant and animal cells?
How does the structure of a cell help it carry out its functions?
What do you think is the most important function of cells?
Brain break: Draw an octopus sitting in a chair and reading a book.
Question: You are a scientist studying cells. How can you explain the structure and function of cells to someone else? Clues: • Remember that cells are the basic building blocks of life. • Look for similarities between cells and other things such as a factory or a city. • Understand that cells have different roles and parts to play. In pairs: Select and solve one of the tasks: A. Create a drawing that explains the structure and function of cells. B. Work in pairs and explain your drawing to each other.
What is the basic unit of life?
What are the two main types of cells?
- Prokaryotic and Eukaryotic
- Animal and Plant
- Red blood cells and White blood cells
Which organelle is known as the powerhouse of the cell?
What is the outermost layer that encloses all cells called?
- Cell membrane
Which type of cell does not have a nucleus?
Work together in pairs: What are the three main parts of a cell?