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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 portion of a DNA molecule that serves as a unit of heredity; found on the chromosome
hypertonic
cross-pollination
aerobic
gene
2. An organism that possesses one or more whiplike appendages called flagella
flagellate
bacteriophage
synergistic
pollen
3. Changes in genes that are inherited
iris
white matter
mutation
ventricle
4. Refers to protective covering
chemosynthesis
thrombokinase
osmoregulation
integument
5. An organic compound to which hydrogen and oxygen are attached; the hydrogen and oxygen are in a 2:1 ratio; examples include sugars - starches and cellulose
homeotherm
epithelium
carbohydrate
geotropism
6. The female gamete; it is nonmotile - large in comparison to male gametes - and stores nutrients
lymph
egg
placenta
sympathetic
7. Semen
geotropism
pharynx
calorie
seminal fluid
8. Agent that induces mutations; typically carcinogenic
assortative mating
endocytosis
mutagenic agent
pinocytosis
9. A network of capillaries in the Bowman's capsules of the kidney
glomerulus
feedback mechanism
endoderm
estrogen
10. A motile - multinucleate mass of protoplasm resulting from fusion of uninuclear amoeboid cells
pyloric valve
plasmodium
autotroph
Annelida
11. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to
respiration
hypotonic
sympathetic
ungulate
12. A mucus-secreting membrane
pulmonary
parasitism
mucosa
granum
13. A type of anaerobic respiration found in fungi - bacteria and human muscle cells
pyrimidine
lactid acid fermentation
monosaccharide
imprinting
14. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions
carbohydrate
homologous
prokaryote
thryoxin
15. A structure that arises during mitosis and helps separate the chromosomes; composed of tubulin
active immunity
tetrad
stomach
spindle
16. A membrane that envelopes the nucleus and separates it from the cytoplasm; present in eukaryotes
alimentary canal
chemotropism
epinephrine
nuclear membrane
17. The science of classification of living things
trypsin
insulin
pairing
taxonomy
18. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage
dihybrid
nictitating membrane
morula
disjunction
19. A tract of nerve fibers connecting the two cerebral hemispheres
corpus callosum
autotroph
buffer
rhizome
20. An abbreviation of nicotinamide-adenine-dinucleotide-phosphate - also called TPN; an organic compound that serves as an oxidation-reduction molecule
NADP
ectoderm
systole
independent assortment
21. A nitrogenous base such as adenine or guanine; when joined with sugar or phosphate - a component of nucleotides and nucleic acids
hyperthyroidism
homozygous
anaerobic
purine
22. The veins that carry blood from the digestive organs to the liver
homologous
hepatic portal system
aerobic
cortex
23. A remnant of follicle after ovulation that secretes the hormone progesterone
corpus luteum
cleavage
bile salts
diastole
24. The thin - bent part of the renal tubule that is the site of the counter-current flow and the sodium gradient
thryoxin
nitrogen cycle
epicotyl
Loop of Henle
25. Describes an organism that lives symbiotically with a host; this host neither benefits nor suffers from the association
homologous
plasma
cretinism
commensal
26. Structures in the testes that produce sperm and semen
seminiferous tubules
synapse
NAD
cyton
27. The ability of an organism to contribute its alleles and therefore is phenotypic traits to future generations
smooth muscle
fitness
malleus
organelle
28. The process of breaking down large organic molecules into smaller ones
digestion
regeneration
pulmonary
isomer
29. The outermost embryonic germ layer that gives rise to the epidermis and the nervous system
Arachnida
umbilicus
commensal
ectoderm
30. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male
sex chromosome
genus
plasmodium
endemic
31. A marine arthropod - now extinct - that lived during the Paleozoic era
zygote
trilobite
plasmodium
Crustacea
32. A nerve cell
mutation
oogenesis
exoskeleton
neuron
33. Occurs when different traits are inherited together more often than they would have been by chance along; it is assumed that these traits are linked on the same chromosome
linkage
commensal
hyperthyroidism
urine
34. An organic molecule consisting of joined phosphate - 5-carbon sugar (deoxyribose or ribose) - and a purine or a pyrimidine (adenine - guanine - uracil - thymine or cytosine)
nucleotide
pleural cavity
gene frequency
thyroid
35. The system of naming an organism by its genus and species name
mutation
binomial nomenclature
cretinism
cleavage
36. The genetic makeup of an organism without regard to physical appearance
cerebellum
isotonic
plasma membrane
genotype
37. The liquid part of blood
bile salts
inversion
Annelida
plasma
38. Organism that consumes food from outside itself instead of producing it
pseudopod
synapse
Graffian follicle
consumer
39. A process of cell division whereby each daughter cell receives only one set of chromosomes; the formation of gametes
meiosis
autonomic nervous system
telophase
vacuole
40. A transmitter substance released from the axons of nerve cells at the synapse
gonads
acetylcholine
cleavage
ethanol fermentation
41. Part of the nephron in the kidney; involved in excretion
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42. Nonliving - as in the physical environment
blastula
abiotic
geographical barrier
clotting
43. Blood vessels located between ascending and descending aortas that deliver blood to most of the upper body
aortic arch
cephalic
meninges
wood
44. Describes arthropods and other animals whose skeletal or supporting structures are outside the skin
endoderm
niche
exoskeleton
hepatic portal system
45. The triploid tissue in some seeds that contains stored food and is formed by the union of one sperm nucleus with two nuclei of the female's gametophyte
mutualism
endosperm
dihybrid
buffer
46. The hindbrain region that controls equilibrium and muscular coordination
cerebellum
aqueous humor
white matter
genus
47. Blood protein that is transformed to fibrin upon clotting
fibrinogen
hydrostatic skeleton
pith
epicotyl
48. Unicellular organism with simple cell structure
prokaryote
hyperthyroidism
alveolus
aorta
49. An organ that stores bile
Arthropoda
disjunction
gall bladder
respiratory center
50. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter
eukaryote
bile salts
amnion
hyperthyroidism