science

a rigid layer of nonliving material that surrounds the cells of plants and some other organisms plants cell wall is made of cellulose

controls what comes into and out of the cell

a large oval structure that acts like the brain of the cell it's the control center directing all the cell's activities

allows materials to pass through pores in the membrane

strands that contain a genetic material

where ribosomes are made

region between the cell membrane and the nucleus it is a thick gel-like fluid

rod shaped structures that convert energy in food molecules into energy so that the cell can carry out its functions

passageways that carry out proteins and other materials from one part of the cell to another

small grain like bodies that produce proteins some ribosomes are attached to the ER and other float in the cytoplasm to

receives proteins from ER and distributes them to other parts of the cell

any substance that cannot be broken down into simpler substance

the chemical combination of two or more elements

an energy-rich organic compound such as sugar

lare organic molecules made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur

small molecules that make up proteins

type of protein that speeds up chemical reactions in living things

an energy-rich organic compound such as fat

very large organic molecules made of carbon, oxygen, hydrogen, nitrogen, and phosphorus

type of nucleic acid that passes from parent to offspring and directs all the cells functions

type of nucleic acid that plays an important role in the production of proteins

main method which small molecules move across cell membrane process which molecules move from area of higher concentration to area of lower

diffusion of water molecules through a selectively-permeable membrane (cell membrane)

movement of dissolved materials through a cell membrane without using cellular energy

movement of dissolved materials through a cell membrane using cellular energy. AT requires cell to use own energy but PT doesn't

take molecules in and out of the cell EX: calcium, potassium, and sodium

diffusion is caused by many molecules in a space it causes collisions and when a collision occurs molecules spread from one another