Where most of the energy is released during respiration
Cell Membrane
Controls the passage of substances in and out of the cell
Nucleus
Controls the activity of a cell and carries the genes
Cytoplasm
Where most of the chemical reactions take place
Tissues and Organs
Tissue is a group of cells with a similar function
Organs are made of different types of
tissue that work together to do a certain job
Organ systems are groups of organs
that carry out a particular function
The digestive system
The respiratory system
The reproductive system
The stomach
Glandular tissue excretes acidic digestive
juices to dissolve the food, and muscular
tissue churns it up to help it digest
Diffusion
Diffusion is the net movement of particles of a gas or a solute from an area of high
concentration to an area of low concentration as a result of the random movement of
particles. It uses no energy