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Test your basic knowledge |
SAT Subject Test: Biology
Start Test
Study First
Subjects
:
sat
,
science
,
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 four-letter code made up of the DNA nitrogen bases A - T - G and C; each chromosome is made up of thousands of these bases
pleural cavity
genetic code
peristalsis
DNA
2. A pyrimidine component of nucleic acids and nucleotides; pairs with adenine in DNA
pH
secondary tissue
thymine
spiracle
3. Nonfunctional haploid cells created during meiosis in females; they have very little cytoplasm-most has gone into the functional egg cell
Crustacea
zygote
imprinting
polar body
4. The place of attachment of the mitotic fiber to the chromosome
Calvin cycle
interphase
centromere
appendage
5. The hormone secreted by the corpus luteum of vertebrates and the placenta of mammals; its function is to maintain the endometrium
erythrocyte
pH
progesterone
gray matter
6. A hormone that stimulates plant stem elongation
gibberellin
monohybrid
nitrogen cycle
anaphase
7. The mammalian oviduct that leads from the ovaries to the uterus
inversion
pituitary
cornea
fallopian tube
8. Describes arthropods and other animals whose skeletal or supporting structures are outside the skin
cation
hypotonic
exoskeleton
phototropism
9. An invertebrate animal phylum in which animals possess a single alimentary opening and tentacles with stinging cells
Coelentrata
epinephrine
cuticle
nictitating membrane
10. Degree of penetrability - as in membranes that allow given substances to pass through; the ability to penetrate
biotic
sucrase
permeability
phloem
11. A gland composed of two parts - anterior and posterior - each with its own secretions; called the "master gland" because its hormones stimulate secretions by other glands
pituitary
meninges
lens
blastula
12. An emulsifying agent secreted by the liver
vagus nerve
dorsal root
testes
bile
13. The tenth cranial nerve that innervates digestive organs - heart and other areas
centrosome
inner ear
epidermis
vagus nerve
14. Plant tissue consisting of large thin-walled cells for storage
parenchyma
DNA
spore
endoplasmic reticulum
15. A multidirectional sensory system of lower animals such as the hydra - consisting of nerve fibers spread throughout the ectoderm
nerve net
dendrite
aerobic
ADH (vassopressin)
16. The posterior part of the brain that controls the rate of breathing and other autonomic functions
incomplete dominance
herbivore
hemoglobin
medulla oblongata
17. The recycling of carbon from decaying organisms for use in future generations
Bowman's capsule
chromosome
carbon cycle
chitin
18. The sensory organ of the inner ear of mammals; it is coiled and contains the organ of corti
stroma
codominant
follicle
cochlea
19. An air duct from the middle ear to the throat that equalizes external and internal air pressure
gamete
F1
Eustachian tube
goiter
20. The passive - rhythmical expansion or dilation of the cavities of the heart (atria or ventricles) that allows these organs to fill with blood; preceded and followed by systole (contraction)
epiglottis
malleus
diastole
hypertonic
21. A chemical messenger that is secreted by one part of the body and carried by the blood to affect another part of the body - usually a muscle or gland
hormone
semicircular canals
allantois
parasitism
22. An organ that is not functional in an organism - but was functional at some period in its evolution
vestigial organ
angiosperm
codominant
digestion
23. The hind portion of the forebrain of vertebrates
osmosis
phloem
glycogen
diencephalon
24. A terrestrial habitat zone that is characterized by large tracts of coniferous forests - long and cold winters - and short summers
gill slit
nuclear membrane
taiga
frame shift mutation
25. A mall sex hormone (e.g. - testosterone)
metabolism
androgen
mutagenic agent
diploid
26. A simple sugar
allantois
ADH (vassopressin)
sex linkage
monosaccharide
27. An abbreviation of ribonucleic acid - a nucleic acid in which the sugar is ribose; a product of DNA transcription that serves to control certain cell activities
thermoregulation
trypsin
gamete
RNA
28. The living matter of a cell - located between the cell membrane and the nucleus
commensal
cytoplasm
diffusion
FSH
29. An organ that stores bile
hybrid
gall bladder
linkage
Calvin cycle
30. A flowering plant with simple dry fruit - characterized by nodes on their roots that contain nitrogen-fixing bacteria
respiration
legume
acetylcholine
adrenocorticotrophic hormone
31. Daily cycles of behavior
circadian rhythms
cerebellum
pituitary
Annelida
32. A process of formation of ova
epiphyte
regeneration
oogenesis
bile salts
33. The liquid part of blood
zygote
phenotype
plasma
aqueous humor
34. A hormone that regulates water reabsorption
ADH (vassopressin)
fitness
chloroplast
fallopian tube
35. The law by which genes on different chromosomes are inherited independently of each other
independent assortment
pollination
germ layer
isomer
36. A form of asexual reproduction in which the egg develops in the absence of sperm
steroid
uracil
flagellate
parthenogenesis
37. Small - disc-shaped bodies in the blood that play a chief role in coagulation
platelet
Crustacea
pollen
thymus
38. One of a pair of kidney-shaped cells that surround a stomate and regulate the size of the stomate in a leaf
exocrine
guard cell
Arachnida
ingestion
39. Process of aerobic respiration that fully harvests the energy of glucose; also known as the citric acid cycle
Krebs cycle
goiter
pelagic zone
ventral root
40. The uppermost portion of pistil upon which pollen grains alight
stigma
anaerobic
contractile vacuole
cotyledon
41. A purine (nitrogenous base) component of nucleotides and nucleic acids; links with cytosine in DNA
semicircular canals
ganglion
ventral root
guanine
42. An underground stem
atrium
chloroplast
rhizome
turgor pressure
43. One of a class of organic compounds that contains a molecular skeleton of four fused rings of carbon
steroid
iris
spindle
Annelida
44. The pigment in rod cells that causes light sensitivity
FSH
biome
differentation
rhodopsin
45. A hormone that ripens fruit and induces aging
Rh factor
larva
androgen
ethylene
46. An animal phylum in which all members have a notochord - dorsal nerve cord and pharyngeal gill slits at some embryonic stage; includes the Cephalochordata and the Vertebrates
vestigial organ
Chordata
pedigree
ungulate
47. Protein threads that form in the blood during clotting
endemic
fibrin
granum
thymine
48. The orientation of cells or organisms in relation to chemical stimuli; the growth or movement response of organisms to chemical stimuli
primary oocyte
chemotropism
Rh factor
fitness
49. A behavioral or biological change that enables an organism to adjust to its environment
producer
adaptation
irritability
Annelida
50. A pouched mammal - such as the kangaroo or opossum
insulin
enzyme
marsupial
clotting