Bio
Comes from the Greek word "bios" (life), and "logos" (to study)
Biology
Father of Biology
Aristotle
Life was created by a supernatural being or force. Often associated with religious beliefs
Devine or Special creation theory
life originates in the earth's ocean
Marine theory
life has always existed , and there was no specific point of origin.
Philosophical Theory of eternity
the ability of an organism to maintain a stable internal environment despite external changes
Homeostasis
the sum of all chemical reactions that occur within an organisms. breakdown of molecules
Metabolism
the ability of an organism to adjust to its environment over time through genetic changes r behavioral modifications.
Adaptation
occurs when a harmless or palatable species evolves to mimic the appearance of a harmful or unpalatable species.
Batesia Mimicry
occurs when a predator o parasite evolves to resemble a harmless or beneficial species, thereby deceiving its prey or host
Aggressive Mimicry
The process by which living organisms produce offspring, ensuring the continuation of their species.
Reproduction
The science of organizing and categorizing living organisms based on their evolutionary relationships and shared characteristics
Taxonomy
Taxonomic ranks
Domain-Kingdom-Phylum-Class-Over-Family-Genus-Species
Domain-Kingdom-Phylum-Class-Order-Family-Genus-Species
Eukarya-Animalia-Chordata-Mammalia-Primates-Hominidae-Homo-Homo sapiens
known for their ability to thrive in extreme environment
Bacteria and Archaea
Contains prokaryotes(single-celled organisms that lack a true nucleus) but differ in structural, genetic, and biochemical characteristics.
Archaea and Bacteria
highest classification in plants and animals before the 1990s when domain taxon hasn't been introduce
Kingdom
Kingdom includes_____(plants) _____(animals) Fungi, ______( chiefly protozoa and algae) ______(prokaryotes with distinct cellular characteristics that adapt them to extreme environments, such as deep-sea vents and hot springs) and ______ prokaryotes that are not archaeans)
Plantae-Animalia-Protista-Archaea-Bacteria
Not included in the main kingdoms of life
virus
Ranks below the kingdom and above the class taxonomy
Phylum
second largest phylum by species count and the largest marine phylum, a muscular foot and a oft unsegmented body that may or may not be covered with a shell (mussels, snails, and clams)
Mollusca
Have an internal skeleton and backbone or notochord(a primitive backbone) *fish, amphibians, reptiles, birds, and mammals including humans*
Chordata
more complex, segmented and symmetrical worms containing a nervous system, respiratory system, and sense organs. Earthworms and leeches
Annelida
unsegmented/roundworms
nematoda
spiny body (sea star, sea urchin, sand dollars, sea cucumber, brittle star)
Echinodermata
includes various kinds of microorganisms like Fungi and lagae. the algae are further divided into green, brown, and red
thallophyta
known as vascular plants; xylem that mainly function to conduct water and dissolve minerals, and phloem, while functions mainly in the conduction of foods (sugar)
tracheophyta
any vascular plant that reproduces by means of an exposed seed, or ovule
Gymnosperms
any of about 300 000 species of flowering plants, the largest and most diverse group within the kingdom plantae
Angiosperm
The cell is the basic unit of life
Cell theory
The primary energy currency molecule used by every organism
ATP (Adenosine Triphosphate)
Geographic distribution f species can show organisms are related
Biogeography
Estimating the age of fossils involves looking at their physical positions in sedimentary rocks (__________) and radiometric isotope techniques (__________)
Relative dating and absolute dating
Coined the phrase "ontogeny recapitulates phylogeny," suggesting the false claim humans start as star fish, then progress through a series of developmental stages that retrace the lower vertebrates groups before becoming human
Earnest Haeckel
havetheir own set of DNA, separate from that of the cell nucleus
Mitochondria
have their own genomes
Chloroplasts
Cells reproduce by dividing primarily through two process...
Mitosis and Cytokenis
Cytoplasm division
Cytokinesis
normally prevent the uncontrolled growth and division of cells and tissues
Tumor-suppressor genes
are primarily factors contributing to cancers
mutation
typically involves the production of oxidative metabolic by-products such as molecular variants of oxygen, which may damage the DNA, RNA, proteins and mitochondria
Free radical formation
those occurring in tissues outside of the egg or perm , could lead to diminished function; skin and connective tissues lose resiliency
somatic mutations
suggests that there are "biological clocks' or pacemakers that commence at birth and simply slow and stop, ending in death
Pacemaker theory
making exact copies of genes
Gene cloning
Restriction enzymes create DNA fragments with the gene of interest.
DNA fragments are fused with DNA from a bacterium (palsmid)
Recombinant DNA
use of reproductive cloning to create human embryos to procure stem cells, which have potential to develop into adult tissues(may create treatment to diseases)
Therapeutic cloning
uses computer/statistical applications to access large database concerning DNA/gene/protein information
Bioinformatics
treating diseases and injury in umas onvolving the use of harmless retro virus vectors (or other entry mechanisms) that posses the enzyme reverse transcriptase, allowing the to insert genetic information into DNA
Gene therapy
research involving gene transfer in non-human organisms has been much more extensive
transgenic and genetically-modified plants and animals are becoming more common
Genetic engineering
is an extremely specific response typically involving the production of antibodies
Specific immunity
involves receiving antibodies or antiserum from other source
Passive immunity
are hypertensive tissue reactions to part of the specific immune response
Allergies
sever allergic reactions can lead to _______ which may be life-threatening
anaphylactice shock
is a condition in which cells of the specific immune response attack healthy tissues
Autoimmunity
are those in which some aspect of immune system (usually specific) is defective, thus compromising he ability of the body to protect itselft
Immunodefiency diseases
a disease which is triggered Y the Human immunodeficiency Virus (HIV)
Acquired Immunodeficiency Syndrome (AIDS)
a worldwide health issue and the leading cause of premature death in some countries
AIDS
a rare congenital condition in which T and B cells are defective
Severe Combined Immunodeficiency Syndrome (SCIDS)
can occur when medical drugs are used to supplement the specific immune response, the latter of which may be too low to prevent serious and possibly fatal symptoms
Bacterial resistance to antibiotics
It is the variable that do not change
Constant
It check if consistent with hypothesis
Analyze results
___________ is based on the interpretation of data gathered
Conclusion
_________ is a general statement that describes patterns in nature
Law
it is a branch of science that deals with non-living things
Physical science
It studies the composition, structure, properties and change of matter
Chemistry
It is the study of matter, it's mobility though space and tie, and related ideas like energy and force are all included in natural and physical science
Physics
it is the branch of science that studies the atmosphere and the phenomena that results from it, such as weather and climate.
Meteorology
it's is a branch off science that studies fields dealing with formal systems that describes abstract structures
Formal science
it is the study of numbers
Mathematics
It is the study of collecting and analyzing data
Statistics
It is the study of inferences and inerential relationships is its focus
Logic
This are of study combines computer science with substantial datasets to make problem-solving possible
Artificial Intelligence
It is the use of the scientific method and knowledge obtained via conclusions from the method to attain practical goals
Applied Science
It is the study that deals with human relations
Social Studies
It is the study of past and records
History
It's is th study of society
Sociology
It deals with logic and reasoning
Philosophy
It is the branch of knowledge concerned with the production, consumption, and transfer of wealth and natural resources
Economics
It involves random movement of substances or molecules from an area of high concentration to an area of low concentration
Diffusion
Molecules move randomly
Cell doesn't use energy (no ATP)
No need for oxygen
Passive Transport
It is the movement of soecific particles through specific carrier proteins situated in the membrane. This also follows the concentration gradient
Facilitated Diffusion
Cells use energy (with ATP)
Movement of molecules from an area of low concentration to an area high concentration (against the concentration gradient
Active Transport
transport of large molecules
Bulk Transport
cell eating
cell drinking
Phagocytosis
Pinocytosis
3 types of solution
Hypotonic, Hypertonic, Isotonic Solution
a type of solution with high concentration of solute inside the cell, thus water enters the cell. (swell, burst)
Hypotonic solution
a type of solution where the concentrate of solute outside the cell is equal to that within the cell, water moves equally in both directions
Isotonic Solution
they are one celled organisms.
bacteria, protists, algae
Unicellular
building block of matter
atom
two or more atoms joined in chemical bonds
Molecule/compound
tiny organs of the cells that have specific function. they are known as little organs and found in the cell. Ex:mitochondria, rbosome
Organelles
cells with the same structure and function combine together
Tissue
It is a region that is divided into categories based on the animals that call it home.
Ex. Tundra, Tropical
Biomes
entire planet is thought of as an ecosystem
Biosphere
It is the process of converting and releasing energy. chemical activities that are needed for life. Ingestion, digestion
Metabolism
It is the breakdown of large molecules
Catabolism
It is the synthesis larger molecules
Anabolism
It refers to the increase in size or in Dimension. Quantitative aspect of an organism
Growth
It refers to the increase in complexity of function. Qualitative of function, Qualitative aspect of an organism
development
organisms mechanism to be better fit and to survive the condition of their environment
Adaptation
resenblances between an organism and another objects or species
Mimicry
it is the changes over time. It is responsible for variation and biodiversity, and believes that closely related organisms share common ancestry
Evolution
variation of living organisms
Biodiversity
A trait developed by the parent throughout the course of its lifetime will be passed on to the offspring
Theory of Inheritance of Acquired Characteristics
continued use of an organism strengthens it, and continued diuse weakens it until it disappears
Theory of Use and Diuse
production of new organism arises from he need of it
Theory of Need
a viewpoint that asserts that sudden, global cataclysmic catastrophes are what caused the earth's geological features
Catastrophism
The writing of Thomas Malthus that predicted that as the population continued to increase, resource would become insufficient
An essay on the principle of population
The earth's geological feature are formed by slo changes
Theory of gradualism
Th geological process that are being witnessed today are the same as those that took place in the past
Uniformitarianism
The study of the geographical distribution f organisms in he past and present is called biogeography
Evidence from biogeography
Fossils are the remains, imprints, or remnants of ancient species that have survived in the Earth's crust
Evidence from fossils records or paleontology
Numerous creatures shared DNA and RNA structural similarities suggest a common ancestry that underwent change
Evidence from Molecular Biology
are physical structures shared by different organisms such as a set of bones or body from that may have been inherited from a common ancestor
Homologous structures
are structures that perform the same function but have emerged from different oriigins
Analogous structures
are structures that exists in organisms that have no known function which are believed to be remaining parts from the ancestor
Vestigial stuctures
it is the study of the development of an organism from embryo to its adult form
Embryology
Two species are simply unable to mate as they live in geographically different areas
Ecological Isolation
Mating is prevented because the reproductive organs mature at different times
seasonal isolation
the songs of birds of two species or the coloration isolation of two fishes are so different that the female of one species is able to recognize only the male of its own
Ethological (behaioral) isolation
If all the above mechanisms fail and a hybrid zygote isolation is formed it dies after some time. If the hybrid zygote survives, it dies during development
Zygotic and Developmental
it takes place when a part of population becomes geographically separated from the parental population
Allopatric speciation
A genetic barrier prevents reproduction between a section of population of a species with other members
Sympatric speciation
a mutation in which normal diploid number of chromosomes become doubled, tripled and so on in a section of population of species due to certain irregulates during cell division
Polyploidy
It is the ability to respond to stimulus
Response to stimuli/Irritability
Growth response to light
Phototropism/Phototaxis
response to gravity
Geotropism/geotaxis
response to touch
Thigmotropism/thigmotaxis
response to chemical stimulus
Chemotropism/chemotaxis
response to water or soil moisture
hydrotropism/hydrotaxis
growth response to cold
cryotropism/cryotaxis
response to electricity
Galvanotropism/galvanotaxis
response to airor water current
rheotropism/rheotaxis
response to color
chromotropism/chromotaxis
it needs gametes or sex cells, fertilization, and it involves recombination of genes of both parents.
undergoes Meiosis for the formation of sex cells known as gametes
Sexual Reproduction
This process produces a low number of offspring that requires energy
SExual reproduction
it does not utilize gametes, no fertilization involved, and it needs only a siiingle parent.
Asexual reproduction
offspring are clones of parents (genetically identical). It is a quick process producing high numbers of offspring
Asexual Reproduction
It was te first cell structure that Robert Hooke discovered in 1665
Cell wall
a glue-like substance that holds cellulose fibrils together
hemicellulose
the organic material that gives stiffness to fruit jellies
Pectin
proteins that have sugars associated with their molecules
glycoproteins
is the most abundant polymer compound on Earth
Cellulose
a middle lamella made up of pectin is formed and the cellulose cell wall develops between the middle lamella and cell membrane
Primary Cell wall
It is lignified. Is only formed in woody tissue. Stronger and waterproof. Once ________ forms, cell cannot grow anymore. It is already dead
Secondary Cell wall
semi permiable membrance. It regulates the transport of materials entering and exiting the cell.
Cell membrane
a fluid mosaic of proteins floating in a phospholipid bilayer
Cell membrane
The most prominent structure in the plant is the large _______
vacuole
is large membrane-bound sac that fills up much of most plants cells. serves as the storage area, and may contain stored organic molecules as well as inorganic ions
vacoules
used to store waste in plants
vacoule
everything within the cell membrane which is not the nucleus is known as _________
cytoplasm
is a jelly-like mixture in which the organelles are suspended; so _________ plus organelles is equal to cytoplasm
Cytosol
a characteristic feuture of plant cells is the presence of pastids that make or store food
Chloroplasts and other plastids
Each chloroplasts enclose a system of flattened membranous sac called__________ that contains chlorophyll
thylokoid
___________ contains DNA and 70s ribosomes and are semi-autonomous organelles
Chloroplasts
It carries the genetic material of a plant. It has a membrane-bound sructure
nucleus
the largest organlle within a eukaryotic cell. It controls the center of the cell
nucleus
Are not surrounded by a membrane. _________ are the site of protein synthesis in a cell. They are the most common organelles in almost all cells
Ribosome
it is a system of membranous tubules and sacs. primary function is to act as an internal transport system allowing molecules to move from one part of the cell to another
Endoplasmic reticulum
two types of endoplasmic reticulum
Soft and rough endoplasmic reticulum
is studded with 80s ribosomes and is the site of protein synthesis, It is an extension of the outer membrane of nuclear envelope. allowing mRNA to be transported swiftly to the 80s ribosomes, where they are translated into protein synthesis
rough ER
is where polypeptides are converted into functional proteins and where proteins are prepared for secretion. Site of lipids and steroid synthesis.
breakdown of toxins by liver cells.
Soft ER
in plants golgi bodies are called ___________. It involves processing, packaging and secreting organelles of the cell, so it is much more common in glandular cells
Dictyosomes
it is a system of membranes, made of flattened sac-like structures called by the cell. Work closely with the smooth ER to modify proteins for export by the cell
Dictyosomes
it's the powerhouse of the cell
Mitchondria
types of tissues in plants
Meristematic, Dermal, Vascular, Gound tissue
These are tissues in which the cells remain forever young and divide actively throughout the life of the plant
Meristematic tissue
4 kinds of meristems in plants
aprical meristems
vascular, cork cambium and intercalary meristem