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60 terms

Science 7 Final

STUDY
PLAY
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