Organelles
This organelle surrounds ALL CELLS.
It controls what enters and leaves a cell.
Cell/plasma membrane
Atoms bond together to form...
Molecules
Sugars and starches; they're the main source of energy for living things
Which macromolecule is described here?
Carbohydrates
A scientist examined a slice of a leaf and a slice of a human organ under a microscope and observed that they were both made of similar structures.
Which characteristic of living things does this best represent?
All living things are made of cells
This organelle provides the cell with energy by performing cellular respiration.
Mitochondrion (Mitochondria)
What is the smallest number of cells a living thing can have?
1 cell
Fats, oils, and waxes; They make up the cell membrane
Which macromolecule is described here?
Lipids
What is the term for when organisms constantly work to maintain stable internal conditions?
Homeostasis
This organelle is the "goo" (liquid) that fills up cells and holds the other organelles in place.
Cytoplasm (cytosol)
What is the term for organisms with only 1 cell?
What is the term for organisms with more than one cell?
Unicellular (single-celled)
Multicellular
The maximum number of covalent bonds that carbon can form with other atoms
4 covalent bonds
What is the term for the chemical reactions that occur in cells?
Metabolism
This organelle makes proteins.
Ribosome
Organize these terms smallest to largest:
Atom --> Molecule --> Macromolecule --> Cell --> Organelle
DNA and RNA; their function is to store genetic information
Which macromolecule is described here?
Nucleic acids
Wolves are carnivores, they must hunt for prey like rabbits in order to stay alive.
Which characteristic of living things does this statement best demonstrate?
Energy and metabolism
This organelle is used for cell storage. It is much larger in plant cells than it is in animal cells.
Vacuole
Groups of similar cells are referred to as _____. These come together to make up organs.
Tissues
What does organic mean in science? (two things)
Comes from a living thing and contains carbon
When we get to hot, we sweat to release heat. When we get to cold, we shiver to generate heat.
Which characteristic of living things does this best represent?
Homeostasis