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Test your basic knowledge |
SAT Subject Test: Biology
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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. One of the primary tissues of the embryo
plexus
enzyme
germ layer
pathogen
2. A small projection in the walls of the small intestine that increases the surface area available for absorption
aerobe
tissue
villus
DNA
3. In mammals - the slitlike opening formed by the vocal folds in the larynx
lymph
steroid
glottis
epicotyl
4. An ion with a positive charge - or an ion that migrates towards the cathode (negative electrode) in an electric field
meristem
sensory neuron
cation
plankton
5. A flowering plant with simple dry fruit - characterized by nodes on their roots that contain nitrogen-fixing bacteria
epidermis
lipid
legume
RNA
6. One-thousandth of a millimeter; a unit of microscopic length
micron (micrometer)
endemic
hypertonic
organelle
7. A substance that is acted upon by an enzyme
substrate
functional groups
inner ear
esophagus
8. The part of the nervous system that regulates the involuntary muscles - such as the walls of the alimentary canal; includes the parasympathetic and sympathetic nervous systems
thermoregulation
alveolus
autonomic nervous system
fallopian tube
9. Part of the nephron in the kidney; involved in excretion
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10. A process by which the cell membrane is invaginated to form a vesicle which contains extracellular medium
nephron
levels of structure
organelle
endocytosis
11. A thyroid deficiency that results in stunted growth and feeblemindedness
cerebral cortex
cretinism
lichen
regeneration
12. A grouping of neuron cell bodies that acts as a coordinating center
plankton
umbilicus
cerebellum
ganglion
13. The part of the neuron that transmits impulses to the cell body
tissue
dendrite
geotropism
pairing
14. The enzyme released from the blood platelets in vertebrates during clotting
stroma
trilobite
zygote
thrombokinase
15. A tube one cell thick that carries blood from artery to vein; the site of material exchange between the blood and tissues of the body
capillary
lactid acid fermentation
cerebral cortex
feedback mechanism
16. An enlargement of the thyroid gland due to lack of iodine
pons
goiter
lipase
Crustacea
17. One or two or more types of genes - each representing a particular trait; many alleles exist for a specific gene locus
allele
Protista
ethanol fermentation
genetic drift
18. The microspore of a seed plant
pollen
pyloric valve
commensal
morphology
19. Describes cells that have a double set of chromosomes in homologous pairs (2n)
diploid
metabolism
sex linkage
translocation
20. A kind of white blood cell in vertebrates that is characterized by a rounded nucleus; involved in the immune response
lymphocyte
geographical barrier
ureter
NAD
21. The recycling of nitrogen from decaying organism for use in future generations
deletion
nitrogen cycle
urinary bladder
purine
22. A tube connecting the ovaries and the uterus
hypocoytl
angiosperm
oviduct
chloroplast
23. Structures in the testes that produce sperm and semen
ilium
seminiferous tubules
autosome
dorsal root
24. A 12-carbon sugar that is formed by the union of two glucose units (a disaccharide)
maltose
anaerobe
autotroph
Graffian follicle
25. The colored part of the eye that is capable of contracting and regulating the size of the pupils
iris
pituitary
conditioning
vein
26. An organism that possesses both the male and the female reproductive organs
amnion
turgor pressure
independent assortment
hermaphrodite
27. A decimal fraction that represents the presence of an allele for all members of a population that have a particular gene locus
gene frequency
sporophyte
crossing over
sucrase
28. The orientation of cells or organisms in relation to chemical stimuli; the growth or movement response of organisms to chemical stimuli
nephron
chromosome
alimentary canal
chemotropism
29. An embryonic structure that gives rise to the central nervous system
neural tube
symbiosis
retina
hypothalamus
30. A compact linear organization of nerve tissues with ganglia in the CNS
autosome
nerve cord
xylem
asexual reproduction
31. An organism that does not require free oxygen in order to respire
chitin
anaerobe
morphology
FSH
32. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac
amnion
spermatogenesis
buffer
genus
33. A bone of the upper arm
stomach
inversion
hydrostatic skeleton
humerus
34. A plant that belongs to the class of seed plants in which the seeds are not enclosed in an ovary; includes the conifers
interstitial cells
gymnosperm
gametophyte
acetylcholine
35. Pertains to a gene or characteristic that is masked when a dominant allele is present
recessive
estrogen
chorion
carbohydrate
36. A unit of heat; the amount of heat required to raise the temperature of one gram of water by one degree centigrade
active immunity
artery
calorie
commensal
37. A specialized structure that leads to the digestive tract of a developing organism and provides it with food during early development
passive immunity
tundra
yolk sac
platelet
38. Cytoplasmic organelles that serve as sites of respiration; a rod-shaped body in the cytoplasm known to be the center of cellular respiration
mitochondria
epidermis
umbilicus
gylcolysis
39. The outermost embryonic germ layer that gives rise to the epidermis and the nervous system
follicle
ectoderm
cortex
nitrogen cycle
40. The conversion of digested foods and other materials into forms usable by the body (i.e. - the conversion of amino acids into proteins)
assimilation
fitness
niche
ovary
41. The hormone secreted by the corpus luteum of vertebrates and the placenta of mammals; its function is to maintain the endometrium
irritability
prokaryote
sex linkage
progesterone
42. Describes a fluid that has a higher osmotic pressure than another fluid it is compared to
hypertonic
blastula
Arthropoda
frame shift mutation
43. The innermost tissue layer of the eyeball that contains light-sensitive receptor cells
producer
cerebral cortex
retina
reduction
44. A symbol that denotes the relative concentration of hydrogen ions in a solution
pH
gene
style
appendage
45. The part of the flower that bears the female gametophyte
thorax
tissue
pistil
cation
46. The space between the mesodermal layers that forms the body cavity of some animal phyla
chlorophyll
immunity
coelom
bacteriophage
47. A network or mesh of fibrils - fibers or filaments
alternation of generations
reticulum
serum
urethra
48. A metabolic stage between mitoses in which genetic material is reproduced
rod
lichen
disjunction
interphase
49. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species
adaptation
maltose
fermentation
isolation
50. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter
luteinizing hormone (LH)
hyperthyroidism
genus
turgor pressure
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