section 1 idk Flashcards
(11 cards)
What is the science of biology?
The study of living organisms and the environments they live in.
What are carbs?
A short-term energy source.
What are lipids?
Energy storage, insulation, cushioning.
What are proteins?
Enzymes, support, transport, defense, hormone, motion; composed of amino acids.
What are nucleic acids (DNA)?
Stores genetic info; contains instructions for activities essential to life.
What do organic molecules contain?
Carbon and hydrogen.
What are the components of a nucleotide?
- Phosphate
- 5-carbon sugar
- Nitrogenous base
What is metabolism?
The sum of all the chemical reactions that occur within a cell or organism.
What is the ultimate source of energy for life on Earth?
The sun.
What is photosynthesis?
Used by plants, algae, and some bacteria.
What are the four major organic molecules in the body?
Carbs, lipids, proteins, nucleic acids (DNA).
