Question

1. organisms keeping internal conditions constant is an example of what process?
2. briefly describe the structure and function of lipids.
3. what type of bond holds water molecules together and why is this an important bond for water?
4. explain why all living organisms need to have dna. include the words, genes and proteins, in your explanation.

Explanation:

1. Homeostasis is the process by which organisms maintain stable internal conditions.
2. Lipids are composed of fatty - acids and glycerol. They function as energy storage, components of cell membranes, and as hormones.
3. Hydrogen bonds hold water molecules together. They are important as they give water high surface tension, high heat capacity, and the ability to dissolve many substances.
4. DNA contains genes, which are segments of DNA that code for proteins. Proteins are essential for the structure, function, and regulation of the body's tissues and organs. All living organisms need DNA to produce the proteins necessary for life processes.

Answer:

1. Homeostasis
2. Structure: Composed of fatty - acids and glycerol. Function: Energy storage, cell - membrane components, hormones.
3. Hydrogen bonds. Importance: High surface tension, high heat capacity, good solvent.
4. DNA contains genes that code for proteins. Proteins are essential for life processes.