Cell Structures and Jobs
This structure protects a plant cell and helps it keep its shape.
What is the cell wall?
All living things share this basic characteristic.
What is being made of cells?
This organelle captures light energy to make sugar.
What is a chloroplast?
Which microscope lets you see individual cells clearly?
Compound microscope
Students say something is living because it is green. Is this strong or weak evidence?
Weak evidence. Color alone doesn't prove life.
This organelle stores and protects genetic information.
What is the nucleus?
A rock grows larger when minerals stick to it. Dos that make it living? Why not why not?
No- growth alone doesn't mean living.
Name one structure plants have that animals do not
Cell wall or chloroplast.
Why might an electron microscope show more detail than a compound microscope?
Higher magnification/resolution.
Why does a cell membrane help maintain balance inside a cell?
It controls movement of substances
Students compare a school cafeteria to this cell part because it provides energy.
What is the mitochondria?
A scientist sees structures with membranes and cytoplasm under a microscope. What is this evidence of.
Evidence the sample is living
A cell has chloroplasts and a rigid outer layer.
What is a plant cell?
A student sees many small repeating structures under magnification. What does this suggest/what is it?
cells/multicellular organism
This is a pond organism that has many cells with different jobs
what is multicellular
This structure controls what enters and leaves the cell.
What is the cell membrane?
Which is better evidence of life. Moving or being made of cells?
Being made of cells.
Why don't all cells have chloroplasts?
Only photosynthetic organisms need them
Why are microscopes important to cell theory?
They allow scientists to observe cells
Scientists compare parts of a school to cell parts. The principal's office represents...
The nucleus
A cell needs to build proteins. This tiny structure would be most important
What are ribosomes?
Students see green structures inside a sample. Why might they think it is living? What might it be?
Chloroplasts/organelles show cell structure.
A scientist finds a cell with membrane-bound organelles and DNA in a nucleus.
What is a eukaryotic cell?
If scientists suddenly discover smaller structures inside cells using new technology, what happens to scientific understanding?
It improves and changes with new evidence.
If nutrients cannot enter a cell, what will most likely happen?
Cell cannot survive/maintain homeostasis