Soto- Midterm Deck Flashcards
Organism
-Any living thing
-All the systems working together
Ocular
The lens making contact with the eye
Arm and Base
Parts held when carrying the microscope
Nosepiece
Rotating disk holding assorted lenses
Body Tube
Guides light to eye
Stage
What the slide rests on
Base
Supports the microscope on the table
Clips
Keeps the slide in place
Light Source
serves as illumination
Objectives
Lenses that vary in magnification
Coarse Adjustment Knob
Brings the image into proper focus
Robert Hooke
Used cork to discover cells
Cell
- The basic unit of life
- Term coined by Robert Hooke
Prokaryotic
Simple cells with a disorganized nucleus
Eukaryotic
Cells with an organized nucleus
Organelle
Cell structures
Organelle
Cell structures
Cell Membrane
- Regulates what leaves and enters the cell
- The outermost boundary of an animal cell
Cytoplasm
The filler located in the cell
Endoplasmic Reticulum
The path used to move things within the cell
Lysosome
Digest materials no longer needed by the cell
Mitochondria
Where food is converted into energy
Nucleus
- Directs the cell’s activities
- Contains the Genetic information
Nucleus
- Directs the cell’s activities
- Contains the Genetic information
Ribosomes
Where proteins are produced
Vacuoles
- Storage areas for food, water, and waste
- Large in plant cells small in animal cells
Cell Wall
- provides support for the plant cell
- the outermost boundary of the plant cell
Cellulose
Carbohydrate making up the cell wall
Chlorophyl
The chemical that collects the sun’s energy for the plant
Chloroplast
The structure that provides the plants food
Golgi Apparatus
Involved in the secretion of things to the outside
Tissue
A group of cells working on a specific task
Organ
A group of tissues working on a specific task
System
A group of organs working on a specific task
Organic
Most substances containing carbon
Carbohydrates
- Ex. Glucose starch cellulose
- Provide energy
- Generic Formula- CH2O
Lipids
- Ex. fatty acids&Glycerol
- Provide Energy
- Generic Formula- CHOfew
Proteins
- Ex. amino acids
- Build structures
- Generic formula- CHON
Energy
Released when bonds are broken
Nucleic Acids
DNA & RNA
Osmosis
Movement of water from high to low concentration
Hypotonic
- A solution with a higher water concentration than the cell
- cells swell in this solution
Hypertonic
- A solution with a lower water concentration than the cell
- cells shrink in this kind of solution
Isotonic
A solution with identical water concentration to the cell
Equilibrium
Balance
Difusion
Movement of non-water particles from low to high concentration
Enzyme
A kind of protein that speeds up chemical reactions
Animals
Consumers
Plants
Producers
Water
Makes up 70% of all living
Metabolism
All activities carried out by the organism
- Occurs in the chloroplast
- Reactants- sun, water, and carbon dioxide
- Products- Glucose&Oxygen
Photosynthesis
- Occurs in the mitochondria
- Reactants- glucose & oxygen
- Products- energy, water, carbon dioxide
Cellular Respiration
The two theories of life
*Spontaneous Generation- Life from non-life
* Biogenesis- Life from life
The cell Theory
- All life is made up of cells
- New cells come from old cells
- Cells are the basic unit of structure and function for life
Requires only one parent
Asexual
Requires two parents
Sexual
- Respond to a stimulus
- Development
- Require Energy
- Adaptation
- Reproduce
- Motion
- Attempt to maintain Homeostasis
- Specific lifespan
- Made up of cells
The nine characteristics of life
The 7 steps of the scientific method
- Identify the problem
- Collect information
- Form a Hypothesis
- Perform the experiment
- Collect and analyze data
- Make conclusion
7.Accept or reject the hypothesis
A fertilized Ovum
Zygote
i.e. Sperm and ova
Gametes
Half the expected chromosome number
Haploid
The expected chromosome number for a given organism
Diploid
An organism’s genetic information
DNA
A bundle of DNA
Gene
A structure that carries the genes
Chromosome
A union of gametes
Fertilization
The non-reproductive cells
Somatic
Specific kinds of organisms that successfully reproduce
Species
- Cell division producing hapliod cells
- Cell divion producing the gametes
Meiosis
- Cell division producing the somatic cells
- Cell division producing diploid cells
Mitosis
A change in genetic information
Mutation
Replication of chromosomes occur
Interphase
Tetrads form
Prophase
Chromosomes gather at the equator
Metaphase
Chromosomes migrate to the poles
Anaphase
New cells appear
Telephase
The passing of traits from one generation to another
Heredity
The study of how alleles affect one another
Genetics
Different forms for a possible trait
Alleles
The two alleles are the same for a trait
Homozygous
The two alleles are different for a trait
Heterozygous
The frequently seen allele
Dominant
The characteristic that appears to be hidden
Recessive
The genetic components for a given trait
Genotype
The physical appearance for a given trait
Phenotype
When both possibilities for a trait appear in the offspring
Incomplete Dominance
Change in Heredity features over time
Evolution
Members of one species in a given area
Population
The dying out of a species
Extinction
Differences in inherited traits may lead to a new species
Variation
A feature that makes an organism better suited fot its environment
Adaptation
- Theory presented in 1801
- The organism develops a structure to ensure suvival
- Evolution is due to aquired characteristics
Lamarck
- theory presented in 1859
- organisms compete for food and space
- survival of the fittest
- natural selection
Darwin
- Theory presented in 1901
- mutations provide variety
- Adaptive mutations are inherited by organisms
DeVries
- Theory passed in 1908
- Evolution acts on a population
- small populations are easy to change
- new genes are introduced through migration
- unstable gene frequencies promote evolution
Hardy-Weinberg