SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
AP Biology
Start Test
Study First
Subjects
:
science
,
ap
,
biology
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A fatty acid in which all carbons in the hydrocarbon tail are connected by single bonds - thus maximizing the number of hydrogen atoms that can attach to the carbon skeleton.
saturated fatty acid
cofactor
duplication
pleiotropy
2. A double-stranded - helical nucleic acid molecule capable of replicating and determining the inherited structure of a cell's proteins.
base
DNA
gametes
proton pump
3. A steroid that forms an essential component of animal cell membranes and acts as a precursor molecule for the synthesis of other biologically important steroids.
cellulose
active transport
cholesterol
smooth ER
4. A quantum - or discrete amount - of light energy.
photon
phagocytosis
law of segregration
ribosomes
5. Are not embedded in the lipid bilayer at all. Instead - the are loosely bound to the surface of the protein - often connected to integral proteins
genome
smooth ER
Peripheral proteins
ketone
6. Offspring with a phenotype that matches one of the parental phenotypes.
chlorophyll B
hypotonic
parental types
electronegativity
7. A functional group that consists of a nitrogen atom bonded to two hydrogen atoms; can act as a base in solution - accepting a hydrogen ion and acquiring a charge of +1.
autotrophs
duplication
amino group
S phase
8. Smallest unit of matter that retains property of an element
pinocytosis
atom
growth factor
nucleus
9. Total amount of kinetic energy due to molecular motion in a body of matter. It is energy in most random form
nuclear lamina
sex chromosomes
heat
nucleolus
10. Special transport proteins that generate the voltage gradient across a membrane an example is the Na+-K+ pump restores the electrochemical gradient not only by the active transport of Na+ and K+ setting up a concentration gradien but because it pumps
hemophilia
electrogenic pumps
centrosomes
C3 plants
11. Any cell in multicellular organism except an egg or sperm
selective permeability (the ability to allow some sub. to cross the plasma membrane more easily)
chloroplasts
proton motive force
somatic cells
12. An ion transport protein generating voltage across the membrane.
hypotonic
electrogenic pump
valence electrons
pedigree
13. The distance between crests of waves - such as those of the electromagnetic spectrum.
electrochemical gradient
solute
wavelength
electrogenic pump
14. Digestive compartments (macromolecules) carry out intracellular digestion . Use their hydrolytic enzymes to recycle the cell's own organic material (autophagy)
peroxisome
benign tumor
lysosomes
isotopes
15. A double membrane across the midline of a dividing plant cell between which the new cell wall forms during cytokenisis
chlorophyll B
cell plate
diffusion
osmosis
16. A functional group present in organic acids and consisting of a single carbon atom double-bonded to an oxygen atom and also bonded to a hydroxyl group.
nucleus
phagocytosis
codons
carboxyl group
17. A heritable feature.
character
oxidizing agent
electron transport chain
2nd law of thermodynamics
18. A molecule that binds specifically to a receptor site of another molecule.
genetics
ligands
polymer
phospholipids
19. (1) A deficiency in a chromosome resulting from the loss of a fragment through breakage. (2) A mutational loss of one or more nucleotide pairs from a gene.
light reactions
anaphase
deletion
gap junctions
20. Nuclear division process; prophase - prometaphase - metaphase - anaphase - and telophse
ribosomes
electromagnetic spectrum
mitosis
anaphase
21. The multicellular diploid form in organisms undergoing alternation of generations that results from a union of gametes and that meiotically produces haploid spores that grow into the gametophyte generation.
sporophyte
denaturation
wavelength
tight junctions
22. Mendel's second law - stating that each allele pair segregates independently during gamete formation; applies when genes for two characteristics are located on different pairs of homologous chromosomes.
tumor
transport vesicles
phospholipids
law of independent assortment
23. A chromosomal condition in which a particular cell has an extra copy of one chromosome - instead of the normal two; the cell is said to be trisomic for that chromosome.
prophase
transport proteins
cleavage
trisomic
24. An organic compound with a carbonyl group of which the carbon atom is bonded to two other carbons.
thylakoids
microfilaments
ketone
anaphase
25. A catabolic process that makes a limited amount of ATP from glucose without an electron transport chain and that produces a characteristic end product - such as ethyl alcohol or lactic acid.
fermentation
functions of the proteins
nuclease
exons
26. The cellular process that uses special enzymes to fix incorrectly paired nucleotides.
endergonic reaction
absorption spectrum
mismatch repair
mitotic spindle
27. A three-nucleotide sequence of DNA or mRNA that specifies a particular amino acid or termination signal; the basic unit of the genetic code.
solvent
transport vesicles
codons
kinetochore
28. An increase or decrease in the density of a chemical substance in an area -->substances tend to move form where there are more concentrated to where they are less concentrated
faculative anaerobes
benign tumor
wavelength
concentration gradient
29. One of several atomic forms of an element each containing different number of neutrons and different in atomic mass
recessive allele
isotopes
fat
nucleic acid
30. Region where cells microtubules are initiated
centrosomes
cristae (plural - cristae)
linked genes
light reactions
31. The spontaneous passage of molecules and ions - bound to specific carrier proteins - across a biological membrane down their concentration gradients
ketone
facilitated diffusion
cytosol
free ribosomes
32. A single ATP powered pump that transports one solute can indirectly drive the active transport of several other solutes in this mechanism as the solute that has been actively transported diffuses back passively through a transport protein its movemen
isomers
cotransport
structural isomers
hydrocarbons
33. A fatty acid possessing one or more double bonds between the carbons in the hydrocarbon tail. Such bonding reduces the number of hydrogen atoms attached to the carbon skeleton.
unsaturated fatty acid
tight junctions
prophase
base pair substitution
34. A sugar (monosaccharide) or one of its dimers (disaccharides) or polymers (polysaccharides).
chemical bonds
noncyclic electron flow
stroma
carbohydrates
35. The specific portion of an enzyme that attaches to the substrate by means of weak chemical bonds.
active site
polymer
lactid acid fermentation
parental types
36. An organelle in eukaryotic cells that serves as the site of cellular respiration.
G1 phase
mitochondria
transport vesicles
beta (B) pleated sheet
37. An accident of meiosis or mitosis - in which the members of a pair of homologous chromosomes or sister chromatids fail to move apart properly.
leading strand
polyploidy
nondisjunction
noncompetitive inhibitor
38. A cell organelle constructed in the nucleolus and functioning as the site of protein synthesis in the cytoplasm; consists of rRNA and protein molecules - which make up two subunits.
aerobic
ribosomes
sporophyte
chloroplast
39. A noncoding - intervening sequence within a eukaryotic gene.
RNA polymerase
osmosis
introns
facilitated diffusion
40. A three-dimensional biological polymer constructed from a set of 20 different monomers called amino acids.
proton motive force
protein
glycolysis
heat
41. A spontaneous chemical reaction in which there is a net release of free energy
exergonic reaction
malignant tumor
beta (B) pleated sheet
template strand
42. Complete complement of organisms genes; genetic material
epistasis
homozygous
genome
ATP
43. An individual with the normal phenotype.
gametes
G1 phase
chlorophyll B
wild type
44. Organizing the structures and activities of cells
ketone
prometaphase
cytoskeleton
active transport
45. Walled cells are _____ in isotonic surroundings - where there is no tendency for water to enter.
concentration gradient
chiasmata
flaccid (limp)
fatty acid
46. A diagram used in the study of inheritance to show the results of random fertilization.
chiasmata
template strand
punnett square
freeze-fracture
47. An organic molecule serving as a cofactor. Most vitamins function in important metabolic reactions.
coenzyme
tight junctions
stroma
trace elements
48. A type of strong chemical bond in which two atoms share one pair of valence electrons
growth factor
cytosol
covalent bonds
Acetyl CoA
49. Organization of DNA and proteins into fibrous material
metaphase
osmoregulation
chromatin
phosphate group
50. One of several formed bodies with specialized functions - suspended in the cytoplasm of eukaryotic cells.
domains
telomeres
organelles
codominance