Science Unit - Cells and Molecules

STUDY
PLAY
Nucleus
A part of the cell containing DNA and RNA and responsible for growth and reproduction.
Cytoplasm
A jellylike fluid inside the cell in which the organelles are suspended.
Cell Membrane
A thin, flexible barrier around a cell; regulates what enters and leaves the cell.
Cell Wall
A rigid layer of nonliving material that surrounds the cells of plants and some other organisms.
Mitochondrea
Releases energy from sugar during aerobic respiration.
Ribosomes
Cytoplasmic organelles at which proteins are synthesized. (Makes proteins)
Chloroplast
An organelle found in plant and algae cells where photosynthesis occurs.
Osmosis
Diffusion of water through a selectively permeable membrane.
Diffusion
Movement of molecules from an area of higher concentration to an area of lower concentration.
Fusion
Creation of energy by joining the nuclei of two hydrogen atoms to form helium.
Hypertonic
Having a higher concentration of solute than another solution.
Hypotonic
Having a lower concentration of solute than another solution
Salute
A solution that has a substance dissolved into it.
Solute
A substance that is dissolved in a solution.
Robert Hooke
Who used a microscope and was the first person to observe and name the cells?