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Transcript of Cut and discard this bottom portion. “Biology is the natural science concerned with the study of...
Cut and discard this bottom portion.
“Biology is the natural science concerned with the study of life and living organisms, including their structure, function,
growth, origin, evolution, distribution, and taxonomy.”
Scientific Investigation & Reasoning Skills
Electronic Balance
Mass (g/kg)
Dissection Equipment
Gel Electrophoresis
Microscope
Lab Incubators
Metric Ruler
Micropippettors
Petri Dishes
Stereoscope
Nucleus
Cell Wall
Plasma Membrane
Endoplasmic Reticulum
Ribosome
Mitochondria
Chloroplast
Vacuole
Golgi Apparatus
Lysosome
Cilia
Reporting Cat 1: Cell Structure & Function
Types of Solutions
Synthesis of New Molecules & Biomolecules
Cellular Growth and Replication
DNA ReplicationMitosis
Lytic/Lysogenic CycleMeiosis
Binary Fission
Reporting Cat 1: Cell Structure & Function
Cell Differentiation & Specialization
DNA & RNA Structure Cell Growth Gone Wrong:Tumors
Sex CellsChromosomesGenesDNA
Protein Synthesis: Transcription and Translation
The Purpose of the Process: This is the way that cells build more proteins
Reporting Category 2: Mechanisms of Genetics
25%
25% 25%
25%
A= Dominant (strong, visible) Gene
a= Recessive (weak, hidden) Gene
A or a = alleles
Homozygous= same alleles= AA
Heterozygous= different alleles= Aa
A=Tall a=Short
AA=homozygous dominant traits Aa=heterozygous dominant traits aa=homozygous recessive traits
Genotypes:
AA, Aa, aa
Phenotypes:
3 tall and 1 shortGenetics
Genotype = combination of alleles “AA”Phenotype = the way the genotype is physically
expressed in an organism “Tall”
Dihybrid CrossMonohybrid Cross NonMendelian Genetics
Studying the Genome
DNA Fingerprinting Genetic Engineering Chromosomal Analysis
Mutations
Fossil Record
Biogeography
HomologyAnatomical
Molecular
Developmental
Trait VariationDifferential Reproduction
HeredityTrait Advantage
Natural Selection & Adaptation Over Time
Reporting Cat 3: Biological Evolution & Classification
Genetic Drift- the effect of chance on heredity through a random event or situation.
Gene Flow- the movement (migration) of genes from population to population
Mutation- a mutation can change offspring for generations to come, by introducing something new.
Recombination- this process can also change the evolutionary process.
Taxonomy is the science of identifying and arranging species
into a classification.
Carl Linnaeus gives us the system that we are familiar with today.
Each part of the classification system is very important.
Reporting Cat 3: Biological Evolution & Classification
The 3 Domains and 6 Kingdoms of classification.
Domain Bacteria – EubacteriaDomain Archaea – ArchaebacteriaDomain Eukarya – Protista, Fungi Animalia, Plantae
Eubacteria- single celled organisms, cell wall made of peptidoglycan.
Archaebacteria- single celled organisms, no peptidoglycan in cell wall, lipid membranes instead.
Protista- can be unicellular or multicellular but they are eukaryotes.
Fungi – unicellular or multicellular but they are eukaryotes.
Animalia- multicellular, nucleus, no cell walls, heterotrophs
Plantae –multicellular, nucleus, chloroplasts, autotrophs
Reporting Cat 4: Biological Processes & Systems
Enzymes play a key role in being catalyst in chemical reactions within the body:1.Increase rate of reaction2.Enzyme substrate-Product3.Enzyme regulation (H-L, L-H)
Feedback mechanisms are a way of an organism trying to maintain homeostasis for example:1.Blood glucose production2.Body temperature3.Plant water and CO2 levels
The human body is a very complicated system. It is made up of many systems working together. Each system has a job, and all of the systems together keep us alive. Below are the most important systems for you to know.
Circulatory System
Circulate blood throughout the body
Respiratory System
Supply blood with oxygen for the body.
Reproductive System
Organs that work together to help us
reproduce
Digestive System
Circulate blood throughout the body
Excretory System
Removes excess material or waste
These systems help
the body maintain
“Homeostasis”
Reporting Category 4: Biological Processes & Systems
Every system has a job and those jobs help keep your body balanced or in homeostasis. Feedback mechanisms are ways of keeping this important balance. When you sweat you cool down, when you eat you stop starvation, your body tells your brain, and it tells the body what to do.
Endocrine System
Secretes hormones into bloodstream to regulate the body.
Nervous System
Coordinates the actions of different parts of the body.
Integumentary System
This system protects the body from damage. It uses skin, hair, etc.
Skeletal System
Provides the body with form, shape
and structure.
Muscular System
Provides the body with the ability to
move.
Systems working
together to maintain
“Homeostasis”
Ecosystems have a very delicate balance. Often times factors beyond their control can offset the balance. Organisms then
have to choices adjust over time or perish.
Primary Succession – newly exposed rock, sand, or lava, no previous biotic community. New populations will move into this area, and those species will diversity over time as well.
Secondary Succession – takes place where a previous community has been removed. New populations will also move into this area and those species will diversify over time.
Environmental change will bring with it changes in the community that forms within it.
Ecosystem
Reporting Cat 5 – Interdependence Within Environmental Sys
Predation – where a predator (an organism that is hunting) feeds on its prey (the organism that is attacked).
Parasitism – non mutual relationship between organisms of different species where one organism, parasite, benefits at the expense of the other, the host
Commensalism – relationship between two organisms where one organism benefits but the other is neutral (there is no harm or benefit)
Predation – the way two organisms of different species biologically interact in a relationship in which each individual derives a fitness benefit (i.e., increased or improved reproductive output).
Competition – These interactions cause competition among organisms and helps determine survival or extinction.
Microorganisms – These organisms interact with others as well and cause diseases, aid organisms, and disrupt ecosystems as well over time.
Prey- animal that gets eaten.Ex = . Deer
Predator- animal that huntsEx. = Lion
Producer- plants that make food. Ex. = Grass
Consumer- animal that eats. Ex. = Frog
Decomposer- bacteria that eats the remains Ex. = Fungus
tertiary consumers
secondary consumersprimary consumers
producers
3 types of consumers:
Herbivores- plant eaters
Carnivores- meat eaters
Omnivores- eat both plants and meat
Energy is transferred in a food pyramid from plants herbivores carnivores
Hawks (carnivores)
Frogs (carnivores)
Grasshoppers (herbivores)
Grass
Interactions in the Ecosystem
Organisms’ interactions
dictate the flow of energy in an ecosystem.
Reporting Cat 5 – Interdependence Within Environmental Sys
Simple food chains are used to represent the way organisms interact with one another in an ecosystem, the type of ecosystem is important to the types of organisms that will be found with in.
Food webs depict the way all of the organisms interact, and combine simple food chains into one model of interaction.
Energy pyramids are a great model for illustrating trophic levels. The higher in the pyramid you go, the fewer organisms there are at the top. Coining the phrase, “Top of the food chain!”
Biomass is the amount of living or organic matter present in an organism. Biomass pyramids show how much biomass is present in the organisms at each trophic level. Please remember that energy or matter is neither created nor destroyed.
Carbon Cycle: recycles O2 and CO2 on Earth for all organisms.
Water Cycle: recycles water on Earth for all organisms.
Nitrogen Cycle: recycles Nitrogen on Earth for all organisms.