All living things are made up of what?
Cells
which cell encloses its DNA in a nucleus?
Eukaryotes
which organelle contains DNA
Nucleus
The cell membrane is selectively _____.
permeable
which transport is the movement of molecules across the cell membrane without using energy?
Passive Transport
Cells are the basic unit of ____
all living things
which organism has Chloroplasts?
Plant cells
what organelle stores materials like water, salt, proteins, and carbohydrates?
Vacuoles
the cell membrane regulates _________.
what enters & leaves the cell
in passive transport, molecules ALWAYS move from______.
High-concentration to low concentration
what are the 3 parts of the cell theory?
1. All living things are made up of cells
2. Cells are the basic units of structure and function in living things
3. New cells are produced from existing cells
which cell doesn't have a nucleus?
Proksryotes
what organelle stores and transports materials between cell organelles?
Vesicles
the cell membrane protects and _______ the cell.
supports
which type of transport uses energy?
Active Transport
Who looked at a slice of cork under a microscope?
Robert Hooke
what does an Animal cell have that a Plant cell does not?
lysosomes
what organelle is filled enzymes that break dawn lipids,carbs, and proteins into small molecules that can be used by the rest of the cell?
Lysosomes
which cells have cell membranes?
All cells
which type of passive transport is the diffusion of H2O through a selectively permeable membrane?
Osmosis
Who was the first to observe living microorganisms?
Anton van Leeuwenhoek
what do plant and animal cells have in common?
they are both eukaryotic
what organelle converts chemical energy from food into compounds the cell can use?(aka the power house of the cell)
Mitochodria
what is the Lipid bilayer made of mostly?
lipids
what are the 3 different scenarios the cell can be in?
Hypertonic, Isotonic, and Hypotonic