Biology 9th grade

the study of life

1. identify the problem 2. make a hypothesis 3. create experiment 4. perform experiment5.

analyze data6. publish lab

what you change in the experiment that will test the subject

the change that is caused by the independant variable.

serves as a standard, or comparison.

system of ideas supported by evidence, and explains many observations

truths that are found across the universe.

bias point of view

enlarge images of small objects

measure tempuratures

measure mass

meter (m)

gram (g)

farenhite/ celcius

liter (l)

metabolism, homostasias, reproduction, hereditary, evolution

sum of all chemical reactions

maintain stable internal conditions

the sexual activity of conceiving and bearing offspring

genetically transmitted or transmittable from parent to offspring

change over time

ocular lens x objective lens

organisms that make their own food

organisms that cannot make their own food

an organism that obtains energy and nutrients by feeding on other organisms or their remains.

An organism that eats producers

An organism that eats primary consumers

organisms that break down wastes and dead organisms and return raw materials to the environment

an organism that makes its own food

animals that prey on others

animal hunted or caught for food

a series of steps in which organisms transfer energy by eating and being eaten

(ecology) a community of organisms where there are several interrelated food chains

each step in a food chain or food web

a group of organisms of the same species populating a given area

a group of interdependent organisms inhabiting the same region and interacting with each other

all the living and nonliving things in an environment including their interactions with each other

Place where an Organism lives

physical use of habitat and function with ecological community

living things

non living things

Conditions in the environment that put limits on where an organism can live

gradual change in living communities that follows a disturbance

the variety of species living within an ecosystem

basic unit of matter

positively charged particle

an elementary particle with 0 charge and mass about equal to a proton

an elementary particle with negative charge

number of protons

protons + neutrons

Formed when one or more electrons are transferred from one atom to another

A shared pair of electrons.

, a chemical bond that involves sharing a pair of electrons between atoms in a molecule

contains carbon

2 or more substances mixed together in various portions

a mixture in which substances are evenly distributed throughout the mixture

can see different parts of the mixture (salt and pepper)

mixtures when both substances are evenly mixed

dissolves the solute

dissolves in the solvent

A range of numbers used to describe how acidic or basic a solution is; ranges from 0 (most acidic) to 14 (most basic). 7 is neutral

a chemical substance that is present at the start of a chemical reaction

a chemical substance formed as a result of a chemical reaction

protein substances that speed up chemical reactions.

tempurature

gives off heat

takes in heat c

(biology) the basic structural and functional unit of all organisms

having cells that lack membrane-bound nuclei

having cells with 'good' or membrane-bound nuclei

a cell wall, chloroplast, central vacuole

vesicals, mitochondria

a thin membrane around the cytoplasm of a cell

a jellylike fluid inside the cell in which the organelles are suspended

make proteins

a part of the cell containing DNA and RNA and responsible for growth and reproduction

A membrane bound sac that contains materials involved in transport of the cell.

That portion of the endoplasmic reticulum studded with ribosomes.

That portion of the endoplasmic reticulum that is free of ribosomes.

(lipid synthesis occurs here)

a tiny cavity filled with fluid in the cytoplasm of a cell (plant cell

an organelle found in plant and algae cells where photosynthesis occurs

Powerhouse of the cell, organelle that is the site of ATP (energy) production

tails that transport cells through surrounding enviroment

group of cells with similar functions

structures that carry out specialized jobs within an organ system

structure of membrane, two sheets of lipid molcules with tails pointed inward, proteins embedded in bilayer (serve as channels) along with carbohydrate molecules (id markers - recognition)

a process in which a membrane allows some molecules to pass through while keeping others out

when comparing two solutions, the solution with the lesser concentration of solutes

when comparing two solutions, the solution with the greater concentration of solutes

(used of solutions) having the same or equal osmotic pressure

process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentrated

diffusion of water through a selectively permeable membrane

the movement of materials through a cell membrane using energy

process that releases energy by breaking down glucose and other food molecules in the presence of oxygen

(adenosine triphosphate) main energy source that cells use for most of their work

adenosine diphosphate; molecule that ATP becomes when it gives up one of its three phosphate groups