Bio Unit 1 Test

Heritable Genetic Code

Instructions that have to be past down from generation

Reproduction

Creating new organisms like themselves

Growth and Development

Increase in size and increase in complexcity

Responsive to the environment

Take in information, and react accordingly

Made of 1 or more cells

Cell-basic unit of life (simple living thing)

Homeostasis

(living organisms contain) keeping some characteristics constant

Uses energy

all require energy just to stay alive

Evolution over generations

Evolution is change

Biosphere

On the top, all of the life on earth and all of the places its been

Ecosystem

All living and non living things in a defined area

Community

All living things in a spot

Population

All the organisms in a single species that are living in a defined area (human, tree, bacteria, ant)

Organisms

Individually living things (is the cell)

Organ

(lungs and heart)

Tissue

Cells that work together

Cell

Basic unit of all living things

Molecule

Group of atoms that are held together by chemical bonds

Atom

The smallest part of a substance that still has all the properties of the substance

What are the 3 domains

Bacteria, Archea and Eukarya

What are the 4 kingdoms

Plants, animals, fungi and protists

Prokaryotic

Bactieria and more simple cell

Eukaryotic

all the 4 kingdoms and more complex with a nucleus

What do both pro and eua cells have

Cell membrane, ribosomes, DNA, cytoplasm, and flagellum

What is the structure and composition of the cellular membrane

A dynamic fluid barrier that separates the inside of a cell from its external environment

Active transport

Transport of a solute against its concentration gradient. (using energy)

What is the direction of active transport

From high solute to low solute and moves in the opposite direction than expected

What does active transport always require

Energy, and protien pump

What is the direction of diffusion and of osmosis

High to low (solute) also can cross the phospholipid bilayer

What is homeostasis

The maintenance of some parameter at a reflectively constant value. (human body temp) (blood sugar)

What is negative feedback

A system which change to the value of some preiemtier activates mechinisms that counter at the original change

Positive feedback

A system in which a change to the value in some preiemtier activates mechinisms that amplify the orginal change (microphone too close to its speaker)