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Exam 1 (Chapters 1-4) Bio 1033 Questions and Verified Answers
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Scientific method the process of science deals with variation primarily through an organized sequence of steps that maintain as much objectivity and repeatability as possible. These loosely-organized steps are called ______________ and vary from situation to situation The steps of scientific metho...

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  • July 23, 2024
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  • 2023/2024
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  • exam 1 chapters 1 4 bio 1033 questions and verif
  • scientific method the process of science deals wi
  • the steps of scientific method 1 make insightful

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Exam 1 (Chapters 1-4) Bio 1033
Questions and Verified Answers
Scientific method ✅the process of science deals with variation primarily through an
organized sequence of steps that maintain as much objectivity and repeatability as
possible. These loosely-organized steps are called ______________ and vary from
situation to situation

The steps of scientific method ✅1. Make insightful observations
2. Pose and clarify testable questions
3. Formulate hypotheses
4. Do experiments to gather data
5. Quantify the data
6. Refine hypotheses and retest
7. Answer the questions and make conclusions

Hypothesis ✅a statement that clearly states the relationship between biological
variables.

A hypothesis is an idea about how something works that can be tested using
experiments. A prediction says what will happen in an experiment if the hypothesis is
correct. ✅how do hypothesis and prediction differ?

Control group ✅does not receive treatment in an experiment. Serves as a comparison
group for the treatments.

Experimental group ✅the group in a study that received the treatment in an experiment

Gene theory ✅theory that traits are passed from parents to offspring through gene
transmission

Deoxyribonucleic acid (dna) is a molecule that carries the genetic information for the
development and functioning of an organism. It is made of two linked strands that wind
around each. It contains four building blocks called nucleotide: adenine, thymine,
guanine, and cytosine- at and gt force chemical bonds called base pairs which connect
the two strands. ✅what is dna and what does it contain?

Ecology ✅the branch of biology that deals with the relations of organisms to one
another and to their physical surroundings.

,Ex population- the study of infectious disease patterns in the human population,
community- forest community, and ecosystem- the relationships between the aquatic
environment and the plants and animals that call it home

Taxonomy ✅a science that deals with naming, describing and classification of all living
organisms including plants

Kingdom, phylum, class, order, family, genus, species (kpcofgs) ✅what is the order of
taxonomic hierarchies (from most general to most specific)

Biological nomenclature ✅formal system of naming species of living things by giving
each a name composed of two parts

The first name is genus, the second word is species ✅what are the two names in
nomenclature given to an organism

Bacteria, archaea, eukarya ✅what are the three domains of life?

Bacteria: prokaryotic organisms belong; cells do not contain a nucleus
Archae: prokaryotic organisms either belong; cells do not contain a nucleus; they have a
different cell wall from bacteria
Eukarya: organisms with eukaryotic cells; cells contain a nucleus ✅give examples of
organisms belonging to each domain

Bacteria and archaea ✅prokaryotes fall into which two domains?

Evolution ✅the process by which different kinds of living organisms are thought to
have developed and diversified from earlier forms during the history of the earth

Example: ostriches and emus evolved to have larger bodies and feet made for running
on land

Carbon, oxygen, hydrogen, nitrogen ✅living organisms are made up of what four
common elements?

Genome ✅the complete genetic material of an organism or species

Proteome ✅the complete complement of proteins that a cell or an organism makes.

Polar covalent bond ✅a covalent bond in which the electron density is unevenly
shared between the two bonded atoms, due to a difference in electronegativity or due to
inductive effects

, Nonpolar covalent bond ✅a type of chemical bond that is formed when electrons are
shared equally between two atoms

Hydrogen bond ✅interaction involving a hydrogen atom located between a pair of
other atoms having a high affinity for electrons.

Ionic bond ✅type of linkage formed from the electrostatic attraction between oppositely
charged ions in a chemical compound

Van der walls bonds
Ionic, hydrogen, and van der walls interactions are considered weak bonds ✅which
kind of bond is a weak bond?
Give examples

Atom ✅the smallest part of a substance that cannot be broken down chemically

Ion ✅an atom or molecule with a net charge due to the loss or gain of one or more
electrons

Molecule ✅the smallest particle of a substance that has all of the physical and
chemical properties of that substance

Compound ✅a substance made from two or more different elements that have been
chemically joined

Serum calcium which is a blood test to measure the amount of calcium in the blood
✅what does ca^++ represent?

Sodium ion ✅what does na^+ represent?

Chlorine ✅what does cl^- represent?

Isotope ✅each of two or more forms of the same element that contain equal numbers
of protons but different numbers of neutrons in their nuclei, and hence differ in relative
atomic mass but not in chemical properties; in particular, a radioactive form of an
element.

Isotopes are identified by their mass, which is the total number of protons and neutrons.
You can add the number of protons and neutrons together. ✅can you identify an
isotope of an element? How do you do this?

Polarity, cohesive, and adhesion ✅what are the properties of water?

Polar ✅a structure having an uneven distribution of electron density.

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