Pre-AP Biology Final Exam Study Guide

composition of lipids

oxygen, carbon, and hydrogen

why humans need carbs in their diets

energy; carbs provide glucose which is converted into energy

carbs

main source of energy

lipids

move and store long term energy, cushion vital organs, regulate hromones

nucleic acids

storage and expression of genetic information

proteins

help repair and build body tissues, maintains pH and fluid balance, can also be used as an energy soruce

cohesion

attraction that molecules of the same kind have to each other. In the case of water molecules, they form hydrogen bonds.

DNA

hydrogen bonds

Water

Hydrogen bonds

Glucose

Covalent Bonds

evolution theory basis

all species are related and change over time.

3 conditions necessary for natural selection to occur

variation, heredity, and differential reproductive success

5 types of evidence for evoltuion theory

fossils, organism share the same form, biogeography, molecular biology, direct observation

use of DNA seq. between diff species

can help determine how similar different species are to each other

vestigial structures

strucutres with no apparent function that have no apparent function but had a function from a previous answer