Cell Theory
What is the basic unit of structure and function in living things?
A cell
Is a bacterium prokaryotic or eukaryotic?
Prokaryotic
Which organelle contains DNA and helps control the cell?
Nucleus
Which structure controls what enters and leaves the cell?
Cell membrane
A cell can no longer control what enters and leaves. What structure is probably damaged?
Cell membrane
Complete: All living things are made of one or more _____.
Cells
Is a plant cell prokaryotic or eukaryotic?
Eukaryotic
Which organelle releases usable energy from food?
Mitochondria
Which organelle stores water, food, and other materials?
Vacuole
A student looks at a cell under a microscope and sees a nucleus. Is the cell prokaryotic or eukaryotic?
Eukaryotic
Complete: All cells come from _____ cells.
Pre-existing
What is one major difference between prokaryotic and eukaryotic cells?
Eukaryotic cells have a nucleus/organelles; prokaryotic cells do not.
Which organelle captures light energy for photosynthesis?
Chloroplast
Why might a muscle cell need many mitochondria?
It works hard and needs lots of usable energy to function.
The nucleus contains this molecule which acts as the memory and instruction guide for everything the cell does.
DNA
Complete: The cell is the basic unit of _____ and _____.
Structure and function
_______ in plant cells help them make sugar from sunlight.
chloroplasts
What is the jelly-like material where many cell processes occur? (This stuff fills up the cell)
Cytoplasm
Which organelle is missing in most bacteria?
Trick question- Bacteria have NO organelles
Mitochondria
A skin cell divides and produces two new cells. Which part of cell theory does this support?
All cells come from pre-existing cells.
Apart from chloroplasts, plant cells also have ________, which animal cells lack.
Cell walls, central vacuoles
These small organelles create proteins
Ribosomes
This is the 'energy currency' molecule used by most cells.
ATP, adenosine triphosphate
_______ cells work together. _______ cells work alone.
multicellular; unicellular