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CCCC Biol
Ch 1
Question | Answer |
---|---|
Evolution- CORE THEME | Evolution is the process of change that has transformed life on earth |
Biology is | the study of life. |
Biologists ask | Questions |
7 Characteristics of life | Order, Evolutionary adaption, Response to the environment, Reproduction, Growth and development, Energy processing, Regulation |
Order is- | the highly ordered structure that characterizes life |
Evolutionary adaption- | Such adaptions evolve over many generations by reproductive success of those individuals with heritable traits that are best suited to their environments. |
Regulation- | |
Reproduction- | Organisms (living things) reproduce their own kind. |
Response to the environment- | |
Growth and development- | Inherited information carried by the gene controls the pattern of growth and development of organisms, such as seedlings. |
Energy processing- | |
The study of life reveals common themes which are 5 unifying themes: | Organization, Information, Energy and Matter, Interactions, and Evolution |
Organization- | Highly organized. There is structure and function within all forms of life. |
Emergent properties are | New properties that arise with each step upward in the hierarchy of life, owing to the arrangement and interactions of parts as complexity increases. |
The cell- | The smallest unit of organization that can perform all activities required for life. |
All cells have- | Enclosed by a membrane, DNA as their genetic material, have Ribosomes, Contain Cytosol |
To main types of cells- | Prokaryotic and Eukaryotic cells |
Eukaryotic cells- | Has membrane-enclosed organelles, the largest of which is usually the nucleus |
Prokaryotic cells- | is simpler and ususally smaller, and does not contain a nucleus or other membrane-enclosed organelles |
Eukaryotic cells- | has membrane-enclosed organelles, the largest of which is the nucleus |
Information- | within cells, structure called chromosomes contain genetic information in the form of DNA. Each |
Gene codes are | the units of INHERITANCE |
Each DNA is made up of | Two long chains arranged in a double helix |
Each chain is made up of 4 kinds of chemical building blocks called- | Neucleotides and nicknamed A, G, C, and T |
DNA is transcribed into- | RNA, which is translated into a protein. DNA =>RNA=>Protein |
Gene expression is- | the process of converting information from gene to cellular product |
Gene expression is also... | Central Dogma |
An organisms GENOME is- | its entire set of genetic instructions |
GENOMICS is the study of- | sets of genes within and between species |
PROTEOMICS is the study of- | whole sets of proteins encoded by the genome (known as proteomes) |
ENERGY and MATTER. Energy flows through an eco system one way- | usually entering as light and exiting as heat. |
INTERACTIONS between | the components of at the system ensure smooth integration of all parts, such that they function as a whole. |
CELLS are able to coordinate various chemical pathways through a mechanism called? | Feedback |
In FEEDBACK REGULATION- | the output or product of a process, regulates that very process |
NEGATIVE FEEDBACK means- | that as more of a product accumulates, the process that creates it slows and less of the product is produced. (ATP generation) |
POSITIVE FEEDBACK means- | that as more of a product accumulates, the process that creates it speeds up and more of the product if produced. (Blood clotting) |
EVOLUTION accounts for | the unity and diversity of life |
Taxonoy is | the brach of biology that names and classifies species, formalizes this order of species into groups of increasing breadth, based on degree to which they share characteristics. |
What are the 3 Domains of life? | Domain Bacteria, Domain Archaea, and Domain Eukaryea |
Bacteria and Archaea are- | Prokaryotic- unicellular |
Domain Eukaryotic includes- | Plantea (photosynthesis- multicellular) Fungi (Absorb nutrients- multicellular) Animalia (Ingest their food- Multicellular) Protists (unicellular- many kingdoms) |
A striking UNITY underlines the diversity of life... | DNA is the universal genetic language- Cell structure |
Darwin made two main points- | 1. Species showed evidence of "descent with modification" from common ancestors 2. Natuaral selection is the mechanism behind "descent with modification" |
Natural selection results in- | in the adaption of organisms to their environment |
The word "science" is derived from Latin and means | "to know" |
The scientific process includes- | making observations, forming logical hypotheses in testing them. |
Scientists use a process that includes- | making observations, forming logical hypotheses, and testing them. |
Scientists describe natural structures and processes as accurately as possible through | Observation and analysis of data |
Recoded observations are called- | Data |
Two forms of DATA- | Qualitative and Quantitative |
Qualitative is- | Descriptions rather than measurements |
Quantitative is- | Measurements which are sometimes organized into table or graphs (numbers) |
In science, HYPOTHESIS is | a tentative answer to a well framed question- an explanation on trial -not a best guess - they are narrow in scope |
INDUCTIVE REASONING- | draws conclusions through the logical process of induction |
Failure to prove that hypothesis- | Does not PROVE that hypothesis |
Independent variable is | manipulated variable |
Dependent variable is | Outcome |
In the context of science, a theory is | Broader in scope than hypothesis, can lead to new testable hypothesis |
Science benefits from- | A cooperative approach and diverse viewpoints. Most scientist work in teams. |
The goal in science is to understand | natural phenomenon- Discoveries |
The goal of technology is to | to apply scientific knowledge for some specific purpose- Inventions |
Science and technology are- | Independent |