Science 7 Final

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Control Group

A part of the experiment that no changes are made to.You use the control group as a comparasion.

Manipulated (independent) Variable

The thing you are testing.

Responding (dependent) Variable

The results of the experiment.

Accurate

You need large number when doing an experiment because you want your results to be more?

First Experiment

You repeat your experiment in order to test your results from the?

Biology

The study of living things.

Organism

A complete living thing.

Zoology

The part of biology that deals with animals and animal life.

Microbiology

The branch of biology that deals with microorganisms and their effects on living organisms.

Taxonomy

A technique of classification.

Bootany

The study of plant and plant life.

Genetics

The study of heredity.

3 molecules of water
6 atoms of hydrogen
3 atoms of oxygen

3H20
? molecules of water
? atoms of hydrogen
? atoms of oxygen

Carbohydrates
Lipids
Nucleic Acid
Proteins

Elements always found in organic compounds
List all 4

Starch

Sugar+Sugar=

Protein

Amino Acid+Amino Acid=

DNA and RNA

Example of two nucleic acids

Proteins

Enzymes are ?

Break down food
Build up molecules

Two jobs of enzymes

Fats

Another name for lipids is ?

All made up of cells
Chemicals of life (organic compund)
Energy use
Responding to surroundings
Growth and development
Reproduction

Characteristics of living things (what makes something classified as living)
List all 6

Food
Water
Living Space
Homeostasis

Needs of living things (what do living things need to survive) List all 4

Chemicals Reactions

Reactions>products

All living things are made up of cells
Cells are the smallest unit of life
All cells come from pre-existing cells

List 3 statements of the Cell Theory

Organalle

A tiny cell structure that carries out a specific function within the cell

Cell Wall

1. In a plant cell only
2. A stiff wall surrounds the cell membrane, giving the cell a rigid boxlike shape

Cell Membrane

1. Protects the cell and regulates what substances enter and leave the cell
2. In animal cells, form a barrier between the cytoplasm and the environment outside the cell

Ribosomes

1. A small grain-like structure in the cytoplasm of the cell where proteins are made

Chloroplast>In a plant cell only

1. A structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food

Mitochondria

1. Rod-shaped cell structures that produce most of the energy needed to carry out the cell's function

Endoplasmic Reticulum (ER)

1. A Cell structure that forms a maze of passageays in which protiens and other materials are carried from one part of the cell to another

Vacuole

1. A water-filled sac inside a cell that acts as a storage area
2. Larger in plant cells because they need to store larger amounts of water for times when only a limited supply is available to them

Centrioles

1. Found only in animal cells
2. Used to help animal cells divide

Golgi Bodies

1. A structure in a cell that receives protiens and other newly formed materials from the endoplasmic recticulum, packages them, and distributes them to other parts of the cell

Nucleus

1. A cell structure that contains nucleic acids, the chemicals instructions that direct all the cell's activities
Chromatin
1. material in the cells that contains DNA and carries gentic information
Chromosomes
1. A double rod of condensed chromatin; contains DNA that carries genetic information

Active Transport

1. The movement of materials through a cell membrane using energy
2. Needs ATP
3. Movement from low to high concentration

Passive Transport

1.The movement of materials through a cell membrane without using energy
2. Does not need ATP
3. Movement from high to low concentration

Osmosis

1. The diffusion of water from high concentration to low concentration

Cellular Respiration

1. Cells break down simple food molecules such as glucose and release the energy they contain
2. The body's energy molecule is called ATP

Aerobic Respiration

Uses oxygen as a reactant and produces 36 ATP as a product

Anaerobic Respiration

Does not use oxygen as a reactant and produces 2 ATP as a product

Photosynthesis

The process by which plants and some other organisms capture the energy in sunlight and use it to make food

Aerobic

C6H120+602 enzymes> 36 ATP+6CO2+6H20

Yeast

C6H1206 enzymes> 2 ATP+alcohol+CO2

Photosynthesis

6C02+6H20 sunlight> C6H1206+602

Double Helix

The shape of DNA is a ?

A-T

T-A or

G-C

C-G or

Gene

Section of DNA that codes for a trait

Nucleic Acids

Building blocks of protein are called ?

DNA
RNA

? is copied into RNA (transcribed)
? is translated into proteins by ribosomes

Deoxyribose Sugar
Double Strand
Bases: ATGC
Ribose Sugar
Single Stranded
Bases; AUGC

Three structural difference between DNA and RNA
DNA: ? RNA: ?
DNA: ? RNA: ?
DNA: ? RNA: ?

Darwin's Theory of Natural Selection

1. Overproduction
2. Competition
3. Varation
4. Survival of the fittest

Adaptation

Adapting to your environment

Varation

Diffrences in genetic outcomes

Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

8 Taxa

prokaryote

No nucleus

Eukaryote

Has a nucleus

bacteria
Archaea
Eukarya

3 Domains

Protist
Fungi
Plant
Animal

4 Kingdoms

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