Cell Video

There are 5 basic life functions:
Growth and Development
Reproduce
Respond to environment
Nutrition
Excertion

All living things have certain things in common:
Adaptation to their environment
Sensitive to environment
Reproduction
Cells
They grow and develop

The building blocks of life are cells.

All cells in a human are not the same. Please give examples of at least two different types of cells in humans.

Why are cells not the same? Because they reflect the different functions they serve.

The first person to discover cells was Robert Hooke. He called them cells because they looked like monks' cells called cellula. He first saw cells when he was looking at a piece of cork under a microscope. The cell theory was created by Matthias Jakob Schleiden and Theodor Schwann.

The three main ideas in the cell theory are
Cells are the basic unit of life
All cells arise from preexisting cells
All organisms are made up of one or more cells

Unlike animal cells, plant cells contain the organelles chloroplast and a cell wall. All animal cells are covered in a cell membrane. The function of this is to protect the cell. The different parts of the cell are known as organelles. Each organelle has a specific function. The function of the nucleus is to provide the cell with its unique characteristics. The mitochondria are also known as the power centers of the cell because their function is to obtain energy from glucose by tissue respiration. Storage is the main function of the vacuole. Bacteria are interesting organisms. Bacterial cells do not have a membrane. Instead the chromosomes of the cell are located in the nucleoid. There are different types of transport used in cells as well. Diffusion is the movement of particles from high concentration to low concentration. Osmosis is different than this because it requires _________semi-permeable membrane _______________________________ and ____solutes_________________________.

What is the difference between active and passive transport?Passive Transport is the process of molecules moving from a higher concentration to a lower concentration to reach equilibrium and Active transport is the movement of molecules which goes against the concentration gradient (low to high) and it needs ATP.

What organelle makes the energy used in active transport?

Is a virus a living cell? No

What is contained inside a virus? DNA and RNA

What is the only life function of a virus? reproduce