Name ONE DIFFERENCE between animals and plants cells.
Plant cells have cells walls and chloroplasts, animal cells have neither. Plant cells have large vacuoles, animal cells have small ones.
What are CELLS?
They're the smallest unit of living matter. The building blocks of life. Made of atoms and molecules. Make up tissues.
Name ONE TYPE of cell in your body. What does it do/make up?
Wow, you really know your stuff! / Sorry, we were looking for...
HOW MANY cells are there in the average human body?
Scientists DON'T KNOW. They estimate anywhere from 30 billion to 300 trillion.
What's missing? Cells => ___ => Organs => Organ Systems => Organisms
TISSUES.
What do scientists use to look at cells?
They use MICROSCOPES.
What is the BRAIN of a cell? (It controls the other parts of the cell.)
It's the NUCLEUS.
What is the jelly in the cell called? (It's mostly water but also has important chemicals in it.)
It's called the CYTOPLASM.
What is the POWERHOUSE of the cell? (It breaks down sugars and makes energy.)
It's the MITOCHONDRION. (plural = MITOCHONDRIA)
Are these ANIMAL or PLANT cells? HOW do you KNOW?
They're plant cells. They're green, rectangular, and have chloroplasts.
