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. Having two identical alleles for a given trait.
flaccid (limp)
intermediate filaments
homozygous
receptor mediated endocytosis
2. A type of endocytosis involving large - particulate substances.
covalent bonds
phagocytosis
2nd law of thermodynamics
photophosphorylation
3. Reproduction of cells
wild type
base pair substitution
fluid mosaic model
cell division
4. Having two different alleles for a given genetic character
alternation of generations
chiasmata
heterozygous
base
5. The second growth face of the cell cycle consisting of the portion of interphase after DNA synthesis occurs
cytological maps
G2 phase
alternation of generations
active transport
6. The most prevalent and efficient catabolic pathway for the production of ATP - in which oxygen is consumed as a reactant along with the organic fuel.
pleiotropy
glycosidic linkage
cellular respiration
electron microscope
7. A sequence of electron carrier molecules (membrane proteins) that shuttle electrons during the redox reactions that release energy used to make ATP.
electron transport chain
domains
2nd law of thermodynamics
triplet code
8. The entire contents of the cell - exclusive of the nucleus - and bounded by the plasma membrane.
cytoplasm
gametes
peptide bond
reaction center
9. Chromatin - nucleolus - nuclear envelope--> directs protein synthesis by synthesizing RNA (mRNA) and sending it to the cytoplasm via nuclear pores-->the mRNA is made according to instruction provided by DNA --> mRNA reaches cytoplasm ribosomes transl
passive transport
nucleus
faculative anaerobes
photorespiration
10. A subatomic particle with a single negative charge; one or more electrons move around the nucleus
photosystem I
disaccharides
electron
genetic recombination
11. A reaction in which two molecules become covalently bonded to each other through the loss of a small molecule - usually water; also called dehydration reaction.
nucleus
G0 phase
condensation reaction
aerobic
12. The disruption of a cell and separation of its organelles by centrifugation.
carbonyl groups
glycosidic linkage
cell fractionation
tonoplast
13. A taxonomic category above the kingdom level. The three domains are Archaea - Bacteria - and Eukarya.
beta oxidation
dominant allele
domains
compound
14. An organism that makes ATP by aerobic respiration if oxygen is present but that switches to fermentation under anaerobic conditions.
spectrophotometer
anticodon
lysosomes
faculative anaerobes
15. Anything takes up space and has mass
monosaccharides
matter
viral envelope
nucleus
16. Actively maintains the gradient of sodium ions (Na+) and potassium ions (K+) across the plasma membrane of animal cells . K+ concentration is low outside animal cell and high inside the cell. Na+ concentration is high outside an animal cell and low i
ribosomes
Integral proteins
sodium potassium pump
selective permeability (the ability to allow some sub. to cross the plasma membrane more easily)
17. The physical and physiological traits of an organism.
atom
phenotype
amino acid
complete dominance
18. The conversion of a normal animal cell to a cancerous cell.
transformation
wild type
cell wall
ultra centrifuges
19. Rain - snow - or fog that is more acidic than pH 5.6.
osmosis
heat
acid precipitation
dominant allele
20. The enzyme that catalyzes the first step of the Calvin cycle (the addition of CO2 to RuBP - or ribulose bisphosphate).
hydroxyl groups
rubisco Ribulose carboxylase
Peripheral proteins
chromosomes
21. A double-stranded - helical nucleic acid molecule capable of replicating and determining the inherited structure of a cell's proteins.
grana
DNA
S phase
sexual reproduction
22. Replicated forms of chromosomes joined together by the centromere and separated during mitosis and meiosis II
amniocentesis
sister chromatids
law of segregration
variation
23. A membrane-enclosed bag of hydrolytic enzymes found in the cytoplasm of eukaryotic cells.
lysosomes
gametes
free ribosomes
pH
24. 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
polar covalent bonds
triplet code
electrogenic pumps
meiosis
25. The passive transport of water; diffusion of water across a selectively permeable membrane; the direction of osmosis is determined only by a difference in total solute concentration ; the kind of solutes in the solution do not matter
hybridization
microtubules
lysosomes
osmosis
26. A human genetic disease of red blood cells caused by the substitution of a single amino acid in the hemoglobin protein; it is the most common inherited disease among African Americans.
gametes
sickle cell anemia
gametophyte
kinetochore
27. The study of carbon compounds (organic compounds).
isomers
fluid mosaic model
exons
organic chemistry
28. The generation-to-generation sequence of stages in the reproductive history of an organism.
life cycle
metastasis
endoplasmic reticulum
endocytosis
29. A green pigment located within the chloroplasts of plants. Chlorophyll a can participate directly in the light reactions - which convert solar energy to chemical energy.
transformation
chlorophyll
catalyst
autotrophs
30. A heritable feature in a population that varies continuously as a result of environmental influences and the additive effect of two or more genes (polygenic inheritance).
carotenoids
sex linked genes
quantitive characters
F1 generation
31. A threadlike - gene-carrying structure found in the nucleus. Each chromosome consists of one very long DNA molecule and associated proteins.
pyrimidines
chromosomes
promoter
punnett square
32. Constructed from glycerol and fatty acids
fat
trisomic
calvin cycle
exocytosis
33. Period when cell cycle when cell is not dividing- cell metabolic activity is high - chromsomes and organelles are duplicated and cell size may increase. 90% of cell cycle
substrate
hydroxyl groups
F2 generation
interphase
34. The form of native DNA - referring to its two adjacent polynucleotide strands wound into a spiral shape.
active site
polar covalent bonds
crossing over
double helix
35. Plants that produce offspring of the same variety when they self-pollinate.
prophase
asexual reproduction
mitotic spindle
true breeding
36. Organization of DNA and proteins into fibrous material
catalyst
receptor mediated endocytosis
chromatin
transcription unit
37. Attached to outside of ER or nuclear envelope- proteins that are destined for insertion into membranes or packaging certain organelles (ex: lysosome)
entropy
peroxisome
bound ribosomes
mutagens
38. The mating - or crossing - of two varieties.
microfilaments
functions of the proteins
hybridization
point mutation
39. Span the membrane 1. channel proteins which have a hydrophilic channel that certain molecules or ions can use as a tunnel through the membrane (aquaporins facilitate the passage of water through the membrane) 2. carrier proteins bind to molecules and
plasma membrane
sexual reproduction
transport proteins
cytosol
40. A family tree describing the occurrence of heritable characters in parents and offspring across as many generations as possible.
electronegativity
amino acid
pedigree
cytological maps
41. An instrument that measures the proportions of light of different wavelengths absorbed and transmitted by a pigment solution.
functions of the proteins
Acetyl CoA
spectrophotometer
carbohydrates
42. Any factor that has a greater impact on a population as the population increases
density dependent inhibitor
telophase
proton motive force
bundle sheath cell
43. A chemical reaction involving the transfer of one or more electrons from one reactant to another; also called oxidation-reduction reaction
bound ribosomes
phagocytosis
redox reactions
polymer
44. A characteristic
trait
stroma
diffusion
binary fission
45. The passive movement of molecules down their concentration gradient via transport proteins
facilitated diffusion
chromosome theory of inheritance
electrochemical gradient
telomeres
46. A cell creates a vesicle around a droplet of extracellular fluid
unsaturated fatty acid
wavelength
functional groups
pinocytosis
47. A protein channel in a cell membrane that opens or closes in response to a particular stimulus.
sulfhydryl group
reducing agent
polar covalent bonds
gated channels
48. The chlorophyll a molecule and the primary electron acceptor in a photosystem; they trigger the light reactions of photosynthesis. The chlorophyll donates an electron - excited by light energy - to the primary electron acceptor - which passes an elec
codons
reaction center
substrate
G2 phase
49. An organelle in eukaryotic cells consisting of stacks of flat membranous sacs that modify - store - and route products of the endoplasmic reticulum.
voltage
phagocytosis
golgi apparatus
gametes
50. That portion of the endoplasmic reticulum that is free of ribosomes.
heredity
smooth ER
glycolysis
amino group