Midterm Study guide Flashcards
Levels of organization?
atom,molecule,macromolecule, cell, tissue, organ, organ system, organism, community, population, ecosystem, biosphere
What’s incorrect about DNA?
All forms of life are composed with cells with a membrane enclosed nucleus.
The main source of energy for producers in an ecosystem?
sunlight
Lowest level of organization that is considered living?
cell
Which statement is incorrect regarding prokaryotic and eukaryotic cells?
Has to due with prokaryotic cells not having membrane bound organelles
What’s a type of protein that’s considered a catalyst?
an enzyme
What kind of feedback is regulation of the pancreas pertaining to blood glucose levels?
negative feedback
Charles Darwin said organisms are adapted to their environment during descent with modification when the possess….?
inheritable traits enhance the survival and reproductive success of those organisms
Atomic number and atomic mass (possibly into neutron number)?
you subtract the atomic number and the atomic mass to find the number of neutrons.
Atoms can’t react when their outer shells are full,
meaning they are nonreactive
Know who gains and loses electrons during ionic bonds
K loses an electron and CL gains an electron
What’s the difference between covalent and ionic bonds?
Covalent is sharing electrons, ionic is losing or gaining electrons
How is one successful in an evolutionary sense?
-To be most successful they must live short by offspring much
What theme(S) go along with evolution?
all of the above
What is a control group?
The group that does not receive what one is testing
Know why a control group is important?
You need something that doesn’t receive what you’re testing so you can compare it.
How do water’s bond with each other?
hydrogen bonds
Know bond strengths? (Which is not a weak bond)
Covalent is strongest to van der waals is the weakest
Hypothesis supported many times is a?
Theory
All the chemical reactions involved inside a cell(s)?
metabolism
Four most important elements everywhere?
-carbon, oxygen, nitrogen, hydrogen
What molecules have carbon?
organic
Identify the dependent variable?
Dependent variable is measurable change
For a protein molecule in between two amino acids to form what has to be released?
water
What kind of bonds are in between bonds in proteins like amino acids?
-peptide