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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. The recycling of nitrogen from decaying organism for use in future generations
Crustacea
synaptic terminal
nitrogen cycle
gall bladder
2. A muscular valve regulating the flow of food from the stomach to the small intestine
pyloric valve
hybrid
cytokinesis
thryoxin
3. Technology that allows for manipulation of genetic material
heterotroph
recombinant DNA technology
stoma
osmosis
4. A pouched mammal - such as the kangaroo or opossum
gene
antibody
cortex
marsupial
5. 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
isolation
metamorphosis
RNA
synapse
6. An accumulation of axons within the CNS that is white because it is fatty - myelin sheath
guard cell
white matter
translocation
mesoderm
7. A tract of nerve fibers connecting the two cerebral hemispheres
corpus callosum
pseudopod
metamorphosis
epicotyl
8. A unit of heat; the amount of heat required to raise the temperature of one gram of water by one degree centigrade
mutagenic agent
calorie
maltase
monohybrid
9. The inner portion of the cytoplasm of a cell or the portion that surrounds the nucleus
binomial nomenclature
tundra
endoplasm
morphology
10. An emulsifying agent secreted by the liver
bile
hydrostatic skeleton
homeotherm
irritability
11. Cycle in photosynthesis that reduces fixed carbon to carbohydrates through the addition of electrons ("dark cycle")
Calvin cycle
meristem
plastid
dominance
12. The largest artery; carries blood from the left ventricle
aorta
asexual reproduction
autonomic nervous system
homeotherm
13. The removal of hydrogen or electrons from a compound or addition of oxygen; half of a redox (oxidation or reduction) process
cortisone
oxidation
vagus nerve
translation
14. A sex or reproductive cell that must fuse with another of the opposite type to form a zygote
hermaphrodite
gamete
nerve
absorption
15. The genetic makeup of an organism without regard to physical appearance
cephalic
semicircular canals
inner ear
genotype
16. A condition in which an organism may have a multiple of the normal number of chromosomes (4n - 6n - etc)
adrenal medulla
polyploidy
nondisjunction
haploid
17. Blood protein that is transformed to fibrin upon clotting
dendrite
pinocytosis
fibrinogen
endoplasmic reticulum
18. The functional role and position of an organism in an ecosystem; embodies every aspect of the organism's existence
Porifera
niche
hermaphrodite
cephalic
19. Hormone active in osmoregulation; a mineral corticoid produced by the adrenal cortex; stimulates reabsorption of Na+ and secretion of K+
auxin
aldosterone
thrombokinase
disjunction
20. A network of membrane-enclosed spaces connected with the nuclear membrane; transports materials through the cell; can be soft or rough
cornea
peristalsis
morphology
endoplasmic reticulum
21. A blood vessel that carries blood away from the heart
stoma
pseudopod
artery
ureter
22. The chamber in the alimentary canal of certain vertebrates located below the large intestine - into which the ureter and reproductive organs empty (as in frogs)
humerus
cloaca
meninges
budding
23. Related to the sense of smell
embolus
autonomic nervous system
olfactory
aerobe
24. One of the two strands that constitute a chromosome; chromatids are held together by the centromere
emulsion
chromatid
herbivore
pathogen
25. The female gamete; it is nonmotile - large in comparison to male gametes - and stores nutrients
macula
FSH
egg
nerve
26. Undifferentiated tissue in the stem of a plant that aids growth in width
eye
cambium
deoxyribose
emulsion
27. A type of nuclear division that is characterized by complex chromosomal movement and the exact duplication of chromosomes; occurs in somatic cells
mitosis
goiter
littoral zone
endoderm
28. An opening in the eye whose size is regulated by the iris
pupil
Loop of Henle
alternation of generations
malpighian tubules
29. The division in animal cell cytoplasm caused by the pinching in of the cell membrane
placenta
homologous
cleavage
chorion
30. The vascular tissue of a plant that transports organic materials (photosynthetic products) from the leaves to other parts of the plant
endocytosis
cleavage
metabolism
phloem
31. Organism that produces its own food; first stage in the food chain
centriole
endoplasmic reticulum
osmosis
producer
32. The fist stage of protein synthesis - in which the information coded in the DNA base is transcribed onto a strand of mRNA
macula
adrenocorticotrophic hormone
electron transport chain
transcription
33. A nitrogen base such as cytosine - thymine and uracil; when joined with sugar or phosphate - a component of nucleotides and nucleic acids
glycogen
pyrimidine
polymorphism
cortex
34. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male
sex chromosome
ecology
appendage
immunity
35. An organic cofactor required for enzyme activity
lipid
isomer
coenzyme
trachea
36. The ability of certain animals to regrow missing body parts
respiration
regeneration
pairing
mitosis
37. Protein threads that form in the blood during clotting
fibrin
phagocyte
peripheral nervous system
turgor pressure
38. Three membranes that envelop the brain and spinal cord (pia mater - dura mater and arachnoid)
meninges
calorie
ethylene
cloaca
39. A dark-staining small body within the nucleus; composed of RNA
morphology
antibiotic
nucleolus
fruit
40. Fluid skeleton of annelids
hydrostatic skeleton
assimilation
ventricle
hypertonic
41. The elimination of metabolic waster matter
point mutation
excretion
endoplasm
Graffian follicle
42. Adrenaline
eye
epinephrine
haploid
protein
43. A structure that arises during mitosis and helps separate the chromosomes; composed of tubulin
cation
trypsin
spindle
pelagic zone
44. An abbreviation of nicotinamide-adenine-dinucleotide-phosphate - also called TPN; an organic compound that serves as an oxidation-reduction molecule
small intestine
mitosis
NADP
interstitial cells
45. An organism that is heterozygous for two different traits
bud
dihybrid
capillary
cortex
46. The class of free-living flatworms
physiology
legume
planaria
telophase
47. Plant growth stimulated by light (stem: + - towards light; root: - - away from light)
monosaccharide
phototropism
climax community
meiosis
48. An abbreviation of nicotinamide-adenine-dinucleotide - also called DPN; a respiratory oxidation-reduction molecule
glottis
antibody
placenta
NAD
49. Random evolutionary changes in the genetic makeup of a population
genetic drift
Chordata
excretion
nucleotide
50. Any physical feature that prevents the ecological niches of different organisms from overlapping
carapace
protein
geographical barrier
phenotype