Life and the Cell
What is an organism?
An organism is a living thing.
What surrounds an animal cell to give it its shape?
What do we call the tiny structures that carry out specific functions in the cell?
Organelles
What is known as the brain of the cell and why?
Name three things that the cell does for a living thing that ensures that it stays alive.
Cytoplasm
This part of the cell converts energy stored in food to energy the cell can use.
Mitochondria
What is known as the recycling center of the cell and why?
Lysosomes because they break down old cell parts so they can be used again.
What is the difference between a unicellular and multicellular organism?
Unicellular organisms are made of a single cell while multicellular organisms are made of many.
Why is the cell membrane like a window screen?
It allows food, water, and oxygen to pass through it into the cell but it keeps harmful materials out.
This part of the cell packages proteins and distributes them to other parts of the cell.
What part of a plant cell is used in photosynthesis?
Chloroplasts
Name three organs in the human body.
Brain, heart, stomach, lungs, liver, skin, etc.
What do plant cells have to give them structure that animal cells do not?
A cell wall
This part of the cell stores water and food as well as waste to be gotten rid of by the cell.
Vacuoles
This is a small round structure in the nucleus that produces ribosomes.
Nucleolus
All living things are composed of cells. Cells are the basic units of structure and function. All cells are produced from other cells.
What are a plant's cell walls made of?
Cellulose
Endoplasmic reticulum and ribosomes
This material in the nucleus gives instructions for the cell to reproduce.
Chromatin