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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 extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac
pituitary
adenosine phosphate
esophagus
amnion
2. An individual that is heterozygous for only one trait
synapsis
reticulum
cross-pollination
monohybrid
3. A dense fluid within the chloroplast in which CO2 is converted into sugars in photosynthesis
centromere
frame shift mutation
stroma
antigen
4. Small - disc-shaped bodies in the blood that play a chief role in coagulation
ventricle
platelet
gametophyte
Krebs cycle
5. A mall sex hormone (e.g. - testosterone)
urine
alveolus
insulin
androgen
6. Random evolutionary changes in the genetic makeup of a population
cytokinesis
lipid
genetic drift
dorsal root
7. The stable - biotic part of the ecosystem in which populations exist in balance with each other and with the environment
climax community
phagocyte
calorie
pheromone
8. Vascular tissue of the plant that aids in support and carries water
cuticle
larva
small intestine
xylem
9. The inner portion of the cytoplasm of a cell or the portion that surrounds the nucleus
artery
thorax
endoplasm
uterus
10. Changes in genes that are inherited
NAD
urea
mutation
geotropism
11. A pyrimidine component of nucleic acids and nucleotides; pairs with adenine in DNA
cuticle
thymine
macula
meristem
12. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage
plasma membrane
bud
morula
gametophyte
13. A hoofed animal
abiotic
functional groups
ungulate
medusa
14. A mutation involving the addition or loss of nucleotides
cell wall plate
frame shift mutation
rickettsia
trachea
15. The area of medulla that regulates the rate of breathing
transcription
respiratory center
antigen
circadian rhythms
16. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions
atrium
Graffian follicle
homologous
maltase
17. A nuclear protein of chromosomes that stains readily
prothrombin
diencephalon
chromatin
neuron
18. An emulsifying agent secreted by the liver
bile
mitochondria
phylum
test cross
19. Compounds in bile that aid in emulsification
photolysis
oxidation
anther
bile salts
20. A waxy protective layer secreted by the outer surface of plants - insects - etcetera
cuticle
thymine
cambium
Mendelian laws
21. Requiring free oxygen from the atmosphere for normal activity and respiration
seminal fluid
test cross
aerobic
cretinism
22. Pertains to a gene or characteristic that is masked when a dominant allele is present
anaerobe
recessive
functional groups
deamination
23. Passively floating or drifting flora and fauna of a body of water; consists mainly of microscopic organisms
seminal fluid
parasitism
translocation
plankton
24. The ourter part of the adrenal gland that secretes many hormones - including cortisone and aldosterone
adrenal cortex
pyloric valve
epinephrine
FSH
25. A type of virus that can destroy bacteria by infecting - parasitizing and eventually killing them
exoskeleton
bacteriophage
linkage
isotonic
26. An organic cofactor required for enzyme activity
aerobe
coenzyme
urethra
circadian rhythms
27. A carbohydrate that is composed of many monosaccharide units joined together
NADP
bacillus
rhodopsin
polysaccharide
28. Tissue formed by the differentiation of cambium that causes a growth in width of a plant system
fertilization
cochlea
saprophyte
secondary tissue
29. The state in which two genetic traits are fully expressed and neither dominates
artery
autonomic nervous system
codominant
androgen
30. The portion of seed plant embryo above the cotyledon
epicotyl
trachea
homeotherm
integument
31. A network - particularly of nerve or blood vessels
climax community
plexus
selective breeding
uracil
32. Describes an individual that has the same gene for the same trait on each homologous chromosome
nucleolus
oxidation
nerve net
homozygous
33. An organ that is not functional in an organism - but was functional at some period in its evolution
synapse
vestigial organ
permeability
acetylcholine
34. A plant growth hormone
pseudopod
urinary bladder
rod
auxin
35. A constituent of the plasma of the blood of vertebrates; it is converted to thrombin by thrombokinase in the presence of calcium ions - thus contributing to the clotting of blood
antigen
abiotic
prothrombin
isomer
36. The organelle that provides mechanical support and carries out motility functions for the cell
carapace
cytoskeleton
vestigial organ
polar body
37. The living together of two organisms in an intimate relationship
symbiosis
Coelentrata
parathyroid
epicotyl
38. A specialized structure that controls osmotic pressure by removing water from the cell
chemosynthesis
thyroid
centrosome
contractile vacuole
39. A mature ovary
fruit
primary spermatocyte
metamorphosis
tissue
40. Cycle in photosynthesis that reduces fixed carbon to carbohydrates through the addition of electrons ("dark cycle")
spiracle
Calvin cycle
cell wall
pollen
41. An undifferentiated - growing region of a plant that is constantly undergoing cell division and differentiation
phagocyte
mutagenic agent
Porifera
meristem
42. A plant that has a single cotyledon or seed-leaf
mitochondria
translation
monocotyledon
RNA
43. The outer - transparent layer of the eye
thrombokinase
monohybrid
cornea
pinocytosis
44. The kind of bond formed when two amino acid units are jointed end to end
yolk sac
gamete
cross-pollination
peptide
45. The dorsal part of the hip girdle
cytochrome
alveolus
Krebs cycle
ilium
46. Asexual reproduction; in this process - the parent organism splits into two equal daughter cells
binary fission
testes
allele
angiosperm
47. A nitrogen base that is present in nucleotides and nucleic acids; it is paired with guanine
carapace
cone
cytosine
plasmodium
48. The phylum to which segmented worms belong
cation
disaccharide
pollination
Annelida
49. A transmitter substance released from the axons of nerve cells at the synapse
commensal
acetylcholine
F2
integument
50. Process of aerobic respiration that fully harvests the energy of glucose; also known as the citric acid cycle
absorption
conditioning
Krebs cycle
bile salts