Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
77 Cards in this Set
- Front
- Back
|
What is negligence?
|
failure to exercise ordinary or reasonable care |
|
|
which item should always be used when using chemicals with noxious vapor?
|
a fume hood should be used |
|
|
what is the polymerase chain reaction? |
PCR is a technique in which piece of DNA can be amplified into billions of copies within a few hours
|
|
|
What is Electophoresis used for and what bases does it separate DNA? |
Electophoresis uses electrical charges of molecules to separate them according to size. so therefore Electophoresis separates DNA according to molecule size. |
|
|
Where is the reading of a meniscus in a graduated cylinder and why? |
The reading is done at the bottom of the meniscus because its curved surface of the liquid. |
|
|
What is Chromotography and what is it most often associated with the separation of what? |
Chromotography is a capillarity substance such as plant pigments used to separate substance. |
|
|
What is potassium chloride an example of? |
Ionic bond |
|
|
What is an Ionic Bond |
bonds that are formed when one electron is stripped away from its atoms to join another atom. they are also called salts and potassium chloride is a salt |
|
|
What is a monomer |
|
|
|
what are the basic units that compose protein |
amino acids |
|
|
what are RNA and DNA and what do they consist of |
Rna and Dna are polymers that consist of nucleotides. |
|
|
what is glycogen
|
a polymer consisting of many molecules of glucose |
|
|
What are some properties of water and what are they held together by |
some properties of water are high specific heat, good solvent, and high freezing point and are held together by polar covalent bond b/t hydrogen and oxygen.
|
|
|
What molecule is not found in the membrane of an animal cell
|
|
|
|
what molecules are found in the membrane of an animal cell |
phospholipids, protein, cellulose, cholestrol |
|
|
what are the monomers in polysaccharides? |
simple sugar |
|
|
Neg. charged particles that circle the nucleus of an atom are called |
electrons
|
|
|
In DNA what does adenine bond with and what does cytosine bond with |
cytosine=guanine |
|
|
Which protein structure consist of the coils and folds of polypeptide chains |
|
|
|
what is protein unique sequence of amino acids |
primary structure |
|
|
what are the coils and folds of polypeptide chains |
secondary structure |
|
|
How tertiary bonds formed? |
by bonding b/t the side chains of the amino acids |
|
|
what is quaternary structure |
the overall structure of the protein from the aggregation of two or more polypeptide chain |
|
|
What is used by miccorganisms for movement |
pilia is only used for attachment |
|
|
What are Eukaryotics cells found in
|
protist, fungi, plants, and animals but not bacteria |
|
|
What is the purpose of the Golgi Appartus |
to sort, modify, and package molecules |
|
|
What stores starch in plant cells?
|
Amyloplast |
|
|
What is Mitochondria |
the site of cellular respiration where ATP is made |
|
|
What type of cell will contain the most mitochondria |
muscle cell |
|
|
What is the order of filaments from smallest to largest |
microfilaments, intermediate filaments, and microtubules |
|
|
What is it called when a virus remain dormant until something intiates it to break out of the host cell |
lysogenic
|
|
|
What is binary fission
|
the asexual process in which the bacteria divide in half after the DNA doubles. this results in an exact clone of the parent cell |
|
|
The shape of a cell depends on it |
function |
|
|
What is diffusion and when does it occur?
|
diffusion is the ability of molecules to move from areas of high concentration to area of low concentration (concentration gradient) |
|
|
What photosystems makes ATP?
|
Photosystem 1 makes ATP and is composed of of a pair of chlorophyll a molecule that makes ATP whose energy is needed to build glucose |
|
|
What is the correct sequence of organization of living things?
|
organelle-cell-tissue- organ- organ system-organism
|
|
|
What is DNA made up of? |
DNA is made up of 5 carbon sugar (deoxyribose) a phosphate group and a nitrogenous base. There are 4 nitrogenous bases in DNA |
|
|
A DNA has a basic sequence of ______ what will be Dna complement |
AGTCAT |
|
|
What are amino acids?
|
Building blocks for protein |
|
|
What is the correct order of steps in protein synthesis? |
transcription, then translation |
|
|
What carries amino acids to the ribosome protein?
|
transfer RNA (tRNA) |
|
|
If a protein is sixty amino acids in length what will the required coded DNA sequence of how many nucleotides?
|
each amino acids consist of 3 nucleotides of there are 60 amino acids in a protein then 60*30=180 |
|
|
What are homozygous individuals? |
individuals who have a pair of identical alleles |
|
|
What are heterozygous individuals? |
individuals with two different alleles |
|
|
If DNA has the sequence ACTATG. What is the anticodon of this molecule? |
ACUAUG |
|
|
What does phenotype mean?
|
The physical appearance of an organism due to genetic make up |
|
|
What does the Law of Segregation By Mendel states? |
when sec cells form, the two alleles that determine a trait will end up on different gametes |
|
|
Where are genes located?
|
Genes are located in chromosmes |
|
|
Any change that affects the sequence of bases on a gene is called
|
mutation |
|
|
What is mutation |
inheritable change in DNA. deletion and duplication are types of mutation. |
|
|
What is polyploidy? |
when a organism has more than two complete chromosomes |
|
|
Which process is a haploid chromosome
|
meiosis, |
|
|
How can segments of DNA be transferred from the DNA of one organism to another through
|
plasmids |
|
|
What are the five requirements that keep the Hardy- Weinburg equilibrium stable
|
no mutation, no selection pressure, an isolated population, a large population, and random mating |
|
|
What gases make up the primitive atmosphere
|
hydrogen, methane, water and ammonia |
|
|
Endosymbiotic theory states that
|
eukaryotes arose from prokaryotes |
|
|
What aspect of science does not support evolution |
organic chemistry |
|
|
What does evolution occurs in |
population it is a change in geneotype over time |
|
|
Which biome is the most prevalent on earth? |
the marine biome it coveres 75% of earth and organized by the depth of water
|
|
|
Mold, mildew, and mushrooms are all what
|
fungi |
|
|
Brown and golden algae are members of what kingdoms |
protista |
|
|
green algae is a member of what family |
plant kingdom |
|
|
What are two major ways to determine taxonomic classification
|
phylogeny (evolutionary relationship) and morphology (structure) |
|
|
What tissue transfers water upward? |
xylem pressure |
|
|
what pulls water downward and is the evaporation of water from leaves? |
transpiration |
|
|
What is the phylum is the largest group in the animal kingdom and accounts for 85% of all animal species?
|
arthropoda which consist of insects, crustaceans, and spiders |
|
|
What is the role of the neurotransmitter
|
to turn off the sodium pump which will result in depoloriation |
|
|
Fats are broken down by which substance |
by bile that's produced in the liver |
|
|
Where does fertilization in humans usually occur in |
the fallopian tubes |
|
|
What is all found in the dermis layer of the skin |
sweat glands, hair follicles, and blood vessels |
|
|
What is the process of wave like contractions that moves food through the digestive tract |
peristalsis |
|
|
What is the function of skin? |
protection, sensation, and regulation of temperature |
|
|
The body endocrine mechanism are controlled by |
feedback loops |
|
|
The most common neurotransmitter is
|
acethyl choline |
|
|
What is a abiotic factor
|
non living aspects of the ecosystem |
|
|
What is a biotic factor |
a living thing |
|
|
|
|
