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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 relationship in which one organism benefits at the expense of another
anther
mitochondria
parasitism
cone
2. The primary germ layer - developed from the lip of the blastopore - that gives rise to the skeleton - the circulatory system and many organs and tissues between the epidermis and the epithelium
mesoderm
guanine
monosaccharide
antibody
3. An undifferentiated - growing region of a plant that is constantly undergoing cell division and differentiation
aorta
nondisjunction
meristem
commensal
4. The transfer of pollen to the micropyle or to a receptive surface that is associated with an ovule (such as stigma)
pollination
platelet
chorion
lactid acid fermentation
5. The portion of alimentary canal in which some protein digestion occurs
chemosynthesis
regeneration
bacteriophage
stomach
6. A reproductive cell that is capable of developing directly into an adult
spore
gene frequency
vestigial organ
rickettsia
7. An organism that requires oxygen for respiration and can live only in the presence of oxygen
aerobe
phototropism
commensal
Krebs cycle
8. A kind of white blood cell in vertebrates that is characterized by a rounded nucleus; involved in the immune response
reduction
littoral zone
gametophyte
lymphocyte
9. A flexible - supportive rod running longitudinally through the dorsum ventral to the nerve cord; found in lower chordates and in the embryos of vertebrates
notochord
photolysis
humerus
crossing over
10. Relating to the lung
independent assortment
pulmonary
placenta
eukaryote
11. The diffusion of water through a semipermeable membrane - from an area of greater concentration to an area of lesser concentration
allantois
polymorphism
white matter
osmosis
12. A hormone produced by the Islets of Langerhans in the pancreas
gametophyte
cloaca
glycogen
insulin
13. An excretory product of protein metabolism
hyperthyroidism
polymer
urea
dendrite
14. A hormonal secretion of the adrenal cortex
pelagic zone
cortisone
maltose
nitrogen cycle
15. An organ centrally involved in the human digestive system
axon
alimentary canal
pupil
bile salts
16. Outgrowths of a root's epidermal cells that allow for greater surface area for absorption of nutrients and water
antibody
root hair
pepsin
systole
17. An air duct from the middle ear to the throat that equalizes external and internal air pressure
photoperiodism
hybrid
Eustachian tube
lactase
18. The part of the hindbrain located in the brain stem
glycogen
pons
cation
allantois
19. An organ that is not functional in an organism - but was functional at some period in its evolution
differentation
crossing over
trypsin
vestigial organ
20. Occurs when certain traits are determined by genes on sex chromosomes
test cross
somatic cell
pedigree
sex linkage
21. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac
thrombokinase
pathogen
amnion
aldosterone
22. The physical appearance or makeup of an individual - as opposed to its genetic makeup
conditioning
selective breeding
polymer
phenotype
23. A network of membrane-enclosed spaces connected with the nuclear membrane; transports materials through the cell; can be soft or rough
haploid
endoplasmic reticulum
saprophyte
goiter
24. One of a class of organic compounds that contains a molecular skeleton of four fused rings of carbon
gene
epinephrine
thrombokinase
steroid
25. The inner part of the adrenal gland that secretes adrenalin
stamen
disjunction
adrenal medulla
pyrimidine
26. The outermost - extra-embryonic membrane of reptiles and birds
endemic
Protista
stroma
chorion
27. A cell in the retina that is sensitive to weak light
rod
semicircular canals
follicle
carnivore
28. Deoxyribonucleic acid; found in cell nucleus - its basic unit is the nucleotide; contains coded genetic information; can replicate on the basis of heredity
DNA
yolk sac
semicircular canals
malleus
29. Pertaining to the head
endoplasm
peripheral nervous system
cephalic
metaphase
30. A mutation in which a single nucleotide base is substituted for another nucleotide base - or an extra nucleotide base is added
plankton
point mutation
ventral root
genetic code
31. A dominant allele suppresses the expression of the other member of an allele pair when both members are present
epicotyl
dominance
plasmodium
population
32. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions
homologous
esophagus
pyloric valve
inversion
33. The posterior part of the brain that controls the rate of breathing and other autonomic functions
medulla oblongata
Graffian follicle
germ layer
absorption
34. A progressive change from which a permanently more mature or advanced state results
differentation
deletion
monosaccharide
platelet
35. The failure of some homologous pairs of chromosomes to separate following meiotic synapsis
levels of structure
nondisjunction
mutagenic agent
adrenal cortex
36. A flowering plant with simple dry fruit - characterized by nodes on their roots that contain nitrogen-fixing bacteria
mutation
legume
vein
glottis
37. A structure that extends from the trunk of an organism and is capable of active movements
appendage
bud
ptyalin
coenzyme
38. Genetic blending; each allele exerts some influence on the phenotype
neural tube
incomplete dominance
cerebral cortex
carbohydrate
39. A specialized structure that controls osmotic pressure by removing water from the cell
progesterone
primary oocyte
epicotyl
contractile vacuole
40. The thigh bone of vertebrates
translation
ventricle
femur
guard cell
41. A resistance to disease developed through the immune system
placenta
sporophyte
immunity
nerve
42. A protein compound containing iron that is found in red blood cells
neural tube
ADH (vassopressin)
hemoglobin
small intestine
43. The ourter part of the adrenal gland that secretes many hormones - including cortisone and aldosterone
adrenal cortex
Arachnida
macula
endocrine gland
44. The phylum to which segmented worms belong
Annelida
androgen
glottis
appendage
45. The reproductive organ that produces sex cells
ventral root
symbiosis
mitosis
gonads
46. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male
cloaca
vestigial organ
calorie
sex chromosome
47. The hindbrain region that controls equilibrium and muscular coordination
cerebellum
genus
cyton
integument
48. The organelle that provides mechanical support and carries out motility functions for the cell
translocation
cytoskeleton
synaptic terminal
exocytosis
49. The final stages of protein synthesis in which the genetic code of nucleotide sequences is translated into a sequences of amino acids
pheromone
anaphase
translation
artery
50. The living matter of a cell - located between the cell membrane and the nucleus
cytoplasm
ventral root
assimilation
marsupial