1
What's the name of the region where the DNA is located in a prokaryotic cell?
nucleoid
The function of the ______ is to store water, essential nutrients, or chemicals for the cell.
vacuole
A protein secreted by certain body cells that stimulate other cells to divide is a.....
growth factor
The _____ is the thick fluid enclosed by the inner chloroplast membrane.
stroma
During the beginning of which phase of mitosis do the centromeres of each chromosome come apart?
anaphase
Glucose molecules are to starch as ______ are to proteins.
amino acids
Eukaryotic cells spend most of their time in which phase?
interphase
Varieties of plants in which self-fertilization produces offspring that are identical to the parents are referred to as....
true-breeding
What is osmosis?
the diffusion of water
In a hypotonic solution, an animal cell will....
swell/lyse/burst
The ability of an optical instrument to show two close objects as separate is known as ______.
resolution
Cellulose, starch, and glycogen are all examples of _______.
polysaccharides
Long fibers of DNA and protein are called _______.
chromatin
The _____ structure of a protein can be either an alpha helix or beta sheet.
secondary
A _____ is digestive enzymes enclosed in a membranous sac.
lysosome
Tay-Sachs disease results from the malfunction of which organelle?
lysosome
Sucrose is made of what two monomers?
glucose & fructose
How does heat harm an enzyme?
changes its 3D shape
The function of ______ is to carry out protein synthesis.
ribosomes
The phase of mitosis during which the nuclear envelope fragments and the nucleoli disappear is _____.
prophase
Which 2 subatomic particles are in the nucleus?
protons and neutrons
The transfer of a phosphate group to a molecule or compound is called _______.
phosphorylation
What feature is common to prokaryotes, fungi, and plants?
cell wall
Relaying a message from a membrane receptor to a molecule that performs a specific function within a cell is called.....
signal transduction
The function of the _______ is to manufacture ribosomal RNA.
nucleolus
To be scientifically valid, a hypothesis must be testable and _____.
falsifiable
The expression of both alleles for a trait in a heterozygous individual illustrates......
codominance
An uncharged atom of potassium has an atomic number of 19 and an atomic mass of 39. How many neutrons does this potassium atom have?
20
How do we distinguish amino acids?
their R groups
An acid is a substance that _______ H+ ions.
donates
The storage form of carbohydrates is _____ in animals and _____ in plants.
glycogen...starch
What is the different in phenotype and genotype?
phenotype-physical appearance
genotype-genetic makeup
What are isomers?
same molecular formula, but different chemical properties
A consumer eating a producer represents a transfer of what two things?
nutrients & energy
What happens to an atom if the electrons in the out shell are altered?
properties/chemical behavior of the atom change
What is a test cross?
Describe the fluid mosaic model.
plasma membrane consists of proteins and phospholipids than can drift in a phospholipid bilayer
If you were looking at a prokaryotic cell under the microscope, you would be looking at a cell that
a. has a nucleus
b. has a membrane
c. makes up most of the tissues in your body
d. is much larger than most cells in your body
b. has a membrane
Which of the following statements regarding the function of mitosis is false?
a. mitosis allows organisms to generate genetic diversity
b. mitosis allows organisms to grow
c. mitosis allows organisms to regenerate lost parts
d. mitosis allow organisms to repair tissues
A.
Most of the unique properties of water result from the fact that water.....
is polar and forms hydrogen bonds
Compare and contrast covalent and ionic bonds.
covalent-share electrons
ionic-electrons are donated/accepted
Which of the following statements regarding mitosis and meiosis is false?
a. meiosis only occurs in the ovaries and testes
b. all sexual life cycles involve an alternation of diploid and haploid stages
c. mitosis produces daughter cells with half the number of chromosomes as the parent cell
d. a haploid cell has half the chromosomes of a diploid cell
What is the correct order of the scientific method? (be close)
observations, question, hypothesis, predictions, test/experiment
A can of cola consists mostly of sugar dissolved in water, with some carbon dioxide gas that makes it fizzy and makes the pH less than 7. In chemical terms, you could say that the cola is an aqueous solution where water is the ______, sugar is the ______, and carbon dioxide makes the solution _______ (acidic/basic).
solvent....solute....acidic
What are the 4 kingdoms in the domain Eukarya?
Protista, plantae, fungi, animalia
Correctly list the hierarchy of life, starting with molecule and increasing in complexity. (as close as you can)
molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere
Which of the following statements regarding a common cellular activity is false?
a. all cells respond to the environment
b. all cells take in and use energy
c. all cells regulate their internal environment
d. all cells have a cell wall
List the 3 types of intercellular junctions.
gap, tight, anchoring
A nitrogen atom has 7 protons, and its most common isotopes has 7 neutrons. A radioactive isotope of nitrogen has 9 neutrons. What is the atomic number and mass number of this radioactive nitrogen?
atomic # - 7
mass # - 16
List the taxonomical groups in order from the most broad to the most specific.
Domain, kingdom, phylum, class, order, family, genus, species