Cell Structure and Function
Macromolecule containing hydrogen, oxygen, nitrogen, carbon and phosphorus: makeup DNA and RNA
Nucleic Acid
A change in the allele frequency of a population as a result of chance events rather than natural selection.
Genetic Drift
A unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring
Gene
Small structures where proteins are produced
Ribosomes
Process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches
Photosynthesis
A part of the cell containing DNA and RNA and responsible for growth and reproduction. (Hint: It's towards the center of the cell.)
Nucleus
Movement of individuals into a population.
Immigration
A characteristic or a distinguishing quality.
Trait
Vacuole
(adenosine triphosphate) a main energy source that cells use for most of their work
ATP
A unicellular organism that lacks a nucleus and membrane-bound organelles. (Hint: This cell is found in single-celled organisms such as bacteria.)
Prokaryotic
Movement of individuals out of a population.
Emigration
An inherited characteristic that appears in an offspring if it is contributed from a parent through a dominant allele
Dominant Trait
A rigid layer of non-living material that surrounds the cell; provides protection and support.
Cell Wall
Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
Cellular Respiration
An organelle found in large numbers in most cells. The biochemical processes of respiration and energy production occur.
Mitochondria
The process by which traits become more or less common in a population due to consistent environmental effects upon the survival or reproduction of the individual with the trait.
Having two identical alleles of a particular gene
Homozygous
Contains chemicals that break down food and worn-out cell parts
Lysosome
a scale of acidity from 0 to 14. It tells how acidic or alkaline a substance is. More acidic solutions have lower pH. More alkaline solutions have higher pH. Substances that aren't acidic or alkaline (that is, neutral solutions) usually have a pH of 7
PH
It provides protection for a cell. Also, provides a fixed environment inside the cell.
Cell Membrane
A form of natural selection in which individuals with certain inherited characteristics are more likely than other individuals to obtain mates.
A trait that is expressed when an organism has two recessive alleles or forms of a gene
Recessive Trait
Captures energy from the sun to produce food (glucose)
Chloroplast
Proteins that act as biological catalysts