Cells and Body Systems

Cells & Human Body Systems Review

• Cells are the basic unit of life.

• Cells come from other living cells

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

Multiple Choice

Which of the following is NOT one of the main components of the cell theory?

• cells must contain DNA

• all living things are made of cells

• cells can only come from other cells

• cells are the basic unit of life

Prokaryotic Cells vs Eukaryotic Cells

• Prokaryotic cells lack a nucleus and other membrane-bound organelles.

• Eukaryotic cells have a nucleus and other membrane-bound organelles.

• All cells have a cytoplasm, DNA, cell membrane, and ribosomes in common.

Open Ended

Is this cell prokaryotic or eukaryotic? How do you know?

• Click the image to make it larger.

Plant cells have a cell wall, a large central vacuole, and chloroplasts; animal cells don't.

Animal cells have lysosomes; plants cells don't.

Multiple Choice

Which of the following organelles are found in plant cells but not in animal cells?

• cell membrane

• cytoplasm

• chloroplast

• mitochondria

Human Body Systems

Our body is organized in levels. From the smallest to the largest level: cells> tissues> organs> organ systems> organism

6 out of 11 Body Systems

Even though each system has its own job, all systems must work together to help the organism function and survive. If one system fails, then entire body can fail.

Multiple Choice

What is the function of the circulatory system?

• Delivers oxygen-rich blood and nutrients to all cells of the body and carries away wastes

• help the body to breathe in oxygen and breathe out carbon dioxide

• controls sensations, thoughts, and movements

• breaks down food and absorbs nutrients

Poll

How confident do you feel about cells and the human body? How well do you know the topic?