BIO-123 Exam I Study Material By MWD.docx - Study Material Exam I Be sure you know the characteristics of living organisms-Are made of membranebound

BIO-123 Exam I Study Material By MWD.docx - Study Material...

This preview shows page 1 - 3 out of 6 pages.

Study Material Exam I Be sure you know the characteristics of living organisms- Are made of membrane- bound cells-have heredity info encoded in genes-mechanism regulate, coordinate, and maintain homeostasis-acquire and use energy- can reproduce, grow, develop- adapt to their environment and responsive to stimuli-populations evolve-life exhibits organizations Know the tenets of the Cell Theory- All living organisms are composed of one or more cells. The cell is the basic unit of structure and organization in organisms. Cells arise form pre-existing cells . Know the three domains (taxonomic categories) and to which prokaryotes belong- Three domains are Bacteria, Archaea, and Eurarya. Prokaryotes are the first two are microorganisms or single celled organisms who have no nucleus. Know the components of the theory of evolution- It is change in the characterstics (genetic makeup) of population over time. It means that all species are related to one another and can change through time. The makeup of the traits over time. Know the differences between natural selection and artificial selection- Artificial Selection is humans select desirable traits within a domestic population. Natural Selection are traits beneficial to the current environment are “selected” within a natural population. Know what phylogeny is and that the Tree of Life (or living things) showing these genealogical or ancestral relationships is called the phylogenetic tree- Phylogeny is the actual genealogical relationships among all organisms.
Image of page 1

Subscribe to view the full document.

Know the difference between a Hypothesis and a Theory- a hypothesis is a suggested explanation for an event, which can be tested . And a theory is a thoroughly tested and confirmed explanation for observations or phenomena. Know the which chemical elements are the most abundant in organisms- 1.Carbon 2.Oxygen 3.Hydrogen 4.Nitrogen 5.Sulfur 6.Phosphorus Know the types of chemical bonds- Lonic bond, involves a transfer of an electron, from one atom gains an electron while one loses an electron. One carrying a negative charge(anion) and the other carrying a positive charge (cation). Opposite charges attract, and the atoms bond to form a molecule. Covalent bond, common in organic molecules, involves the sharing of electrons between 2 atoms. The pair shared electrons form a new orbit that extends around the nuclei of both atoms, making a molecule. Polar bond, 2 atoms connected by a covalent bond may exert attractions in the bond. Resulting in polar bond, something between Ionic and covalent bonding, the resulting molecule is neutral.
Image of page 2
Image of page 3
  • Fall '15
  • Professor.Shoemaker

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask You can ask ( soon) You can ask (will expire )
Answers in as fast as 15 minutes