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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 type of inheritance in which F1 hybrids have an appearance that is intermediate between the phenotypes of the parental varieties
incomplete dominance
active transport
passive transport
hemophilia
2. A linking enzyme essential for DNA replication; catalyzes the covalent bonding of the 39 end of a new DNA fragment to the 59 end of a growing chain.
hybridization
pleiotropy
DNA ligase
fertilization
3. The division of the cytoplasm to form two seperate daughter cells after mitosis
proton pump
stroma
cytokenisis
disaccharides
4. A measure of how difficult it is to stretch or break the surface of a liquid
phospholipids
pyrimidines
surface tension
isotonic
5. A membrane-enclosed bag of hydrolytic enzymes found in the cytoplasm of eukaryotic cells.
diploid cells
lysosomes
transformation
phospholipid
6. Genes that are located on the same chromosome.
linked genes
RNA
unsaturated fatty acid
carboxyl group
7. Drive the diffusion of ions across a membrane 1. chemical force based on an ions concentration gradient. 2. the other is an electrical force based on the effect of the membrane potential on the ion's movement ion diffuses down its electrochemical gra
centrosomes
rough ER
electrochemical gradient
solution
8. An instrument that measures the proportions of light of different wavelengths absorbed and transmitted by a pigment solution.
Oxidative Phosphorylation
heterotrophs
frameshift mutation
spectrophotometer
9. Dissolving agent of a solution
centrosome
solvent
cytological maps
smooth ER
10. The study of carbon compounds (organic compounds).
nucleolus
nucleoid
organic chemistry
active site
11. The spontaneous passage of molecules and ions - bound to specific carrier proteins - across a biological membrane down their concentration gradients
entropy
mitochondria
facilitated diffusion
duplication
12. An organism that obtains organic food molecules by eating other organisms or their by-products.
contractile vacuoles
heterotrophs
cotransport
electron microscope
13. 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.
passive transport
polysaccharides
point mutation
law of independent assortment
14. Fourth subphase of mitosis in which the chromatids of each chromosome have separated and the daughter chromosomes are moving to the poles of the cell
haploid cells
valence electrons
anaphase
glycosidic linkage
15. A functional group important in energy transfer.
phosphate group
food vacuoles
allosteric site
organelles
16. Splits a membrane along the middle of the phospholipid bilayer. When a freeze-fracture preparation is viewed with an electron microscope - protein particles are interspersed in a smooth matrix - supporting the fluid mosaic model.
chlorophyll
freeze-fracture
enantiomers
transport vesicles
17. Differences between members of the same species.
condensation reaction
variation
chlorophyll B
karyotype
18. A type of endocytosis in which the cell ingests extracellular fluid and its dissolved solutes.
pinocytosis
food vacuoles
chlorophyll B
P. generation
19. The arrangement of phospholipids and proteins in biological membranes is described by the
chromatin
gated channels
fluid mosaic model
spectrophotometer
20. A method of metabolic control in which the end product of a metabolic pathway acts as an inhibitor of an enzyme within that pathway.
RNA splicing
noncyclic phosphorylation
cell division
feedback inhibition
21. The removal of noncoding portions (introns) of the RNA molecule after initial synthesis.
RNA splicing
exergonic reaction
compound
lysosomes
22. A network of microtubules - microfilaments - and intermediate filaments that branch throughout the cytoplasm and serve a variety of mechanical and transport functions.
actin
cellular respiration
fluid mosaic model
cytoskeleton
23. An organism that is heterozygous with respect to a single gene of interest. A monohybrid results from a cross between parents homozygous for different alleles. For example - parents of genotypes AA and aa produce a monohybrid genotype of Aa.
monohybrids
acid
atom
Rough ER
24. A chemical process that lyses - or splits - molecules by the addition of water; an essential process in digestion.
chlorophyll B
Rough ER
hydrolysis
atom
25. A heritable feature.
electrochemical gradient
base
pleiotropy
character
26. The conversion of a normal animal cell to a cancerous cell.
2nd law of thermodynamics
C4 plants
unsaturated fatty acid
transformation
27. An assemblage of microtubules and associated proteins that is involved in the movements of chromosomes during mitosis
functional groups
peroxisomes
entropy
mitotic spindle
28. The cell engulfs a particle by extending psedopodia around it and packaging it in a large vacuole
proton
point mutation
growth factor
phagocytosis
29. A type of inheritance in which the phenotypes of the heterozygote and dominant homozygote are indistinguishable.
anaerobic
phospholipid
heterotrophs
complete dominance
30. One of a family of closely related plant organelles - including chloroplasts - chromoplasts - and amyloplasts (leucoplasts).
functional groups
lysosomes
hypertonic
plastids
31. 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
Peripheral proteins
missense mutations
unsaturated fatty acid
glycoproteins
32. Centralized region that joins the two sister chromatids
alcohol fermentation
nucleus
centromere
wavelength
33. Double membrane perforated by pores which regulate entry and exit of certain macromolecules and particles
haploid cells
enantiomers
nuclear envelope
photorespiration
34. In comparing two solutions - referring to the one with a greater solute concentration.
hypertonic
Rough ER
krebs Cycle
cohesion
35. Suspended in cytosol which will function in cytosol (ex:enzymes)
free ribosomes
polyploidy
codons
phagocytosis
36. A machine that spins test tubes at the fastest speeds to separate liquids and particles of different densities.
cytoskeleton
smooth ER
Peripheral proteins
ultra centrifuges
37. Cytokenisis process; pinching of the plasma membrane; the succession of rapid cell division without growth during early embryonic development that converts the zygote into a ball of cell
cleavage
stroma
substrate
proton motive force
38. The mating - or crossing - of two varieties.
facilitated diffusion
tight junctions
hybridization
photorespiration
39. Cancerous tumor that is invasive enough to impair function of one or more organs
malignant tumor
thermodynamics
cell cycle
spectrophotometer
40. The production of ATP by noncyclic electron flow.
sister chromatids
noncyclic phosphorylation
amphipathic molecules
specific heat
41. A functional group present in aldehydes and ketones and consisting of a carbon atom double-bonded to an oxygen atom.
mesophyll cell
solution
ATP
carbonyl groups
42. A three-nucleotide sequence of DNA or mRNA that specifies a particular amino acid or termination signal; the basic unit of the genetic code.
chromosomes
redox reactions
codons
solvent
43. A life cycle in which there is both a multicellular diploid form - the sporophyte - and a multicellular haploid form - the gametophyte; characteristic of plants.
unsaturated fatty acid
aqueous solution
voltage
alternation of generations
44. The covalent bond between two amino acid units - formed by a dehydration reaction
oxidation
peptide bond
transcription unit
haploid cells
45. A double-stranded - helical nucleic acid molecule capable of replicating and determining the inherited structure of a cell's proteins.
hypotonic
genome
matter
DNA
46. A membranous sac formed by phagocytosis.
mitotic spindle
surface tension
food vacuoles
nuclease
47. Material present in the cytoplasm of all eukaryotic cells - important during cell division; the microtubule-organizing center.
purines
centrosome
carboxyl group
character
48. 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.
spliceosome
alcohol fermentation
P. generation
sporophyte
49. (1) A lineage of genetically identical individuals or cells. (2) In popular usage - a single individual organism that is genetically identical to another individual. (3) As a verb - to make one or more genetic replicas of an individual or cell. See a
clone
active transport
krebs Cycle
photosystem I
50. An ion with a positive charge produced by the loss of one or more electrons
leading strand
peroxisome
acid precipitation
cation