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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. An organ centrally involved in the human digestive system
thorax
trachea
aerobe
alimentary canal
2. A ring-shaped muscle that is capable of closing a tubular opening by constriction
dimorphism
sex chromosome
sphincter
species
3. The process by which water and dissolved substances pass through a membrane
pleural cavity
absorption
cretinism
parathyroid
4. A period in the development of animals between the embryo and adult stages; starts at hatching and ends in metamorphasis
Crustacea
yolk sac
endoplasmic reticulum
larva
5. Degree of penetrability - as in membranes that allow given substances to pass through; the ability to penetrate
hermaphrodite
cyton
permeability
capillary
6. The process by which carbohydrates are formed through chemical energy; found in bacteria
testes
population
hypocoytl
chemosynthesis
7. A hydrogen carrier containing iron that functions in many cellular processes - including respiration
epinephrine
uracil
feedback mechanism
cytochrome
8. Structures in the testes that produce sperm and semen
notochord
ganglion
pistil
seminiferous tubules
9. An antipathogenic substance (e.g. - penicillin)
antibiotic
trachea
centromere
homeotherm
10. The portion of the embryonic seed plant below the point of attachment of the coytledon; form the root
species
hypocoytl
cerebral cortex
thymine
11. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait
rhizome
test cross
DNA
telophase
12. A type of nuclear division that is characterized by complex chromosomal movement and the exact duplication of chromosomes; occurs in somatic cells
capillary
ingestion
mitosis
nictitating membrane
13. The transfer of pollen to the micropyle or to a receptive surface that is associated with an ovule (such as stigma)
medusa
F1
pollination
antibiotic
14. A plant that belongs to the class of seed plants in which the seeds are not enclosed in an ovary; includes the conifers
symbiosis
guanine
DNA
gymnosperm
15. An organism that possesses both the male and the female reproductive organs
thymine
endoderm
hermaphrodite
chemotropism
16. A white or colorless - amorphous - horny substance that forms part of the outer integument of insects - crustaceans and some other invertebrates; it also occurs in certain fungi
morphology
chitin
codominant
protein
17. Nonliving - as in the physical environment
selective breeding
telophase
abiotic
reduction
18. A nerve cell
Krebs cycle
heterotroph
passive immunity
neuron
19. A condition in which an organism may have a multiple of the normal number of chromosomes (4n - 6n - etc)
polyploidy
lactid acid fermentation
gray matter
nictitating membrane
20. The phylum to which jointed-legged invertebrates belong - including insects - arachnids and crustaceans
pupil
coelom
Arthropoda
recombinant DNA technology
21. A fluid-filled sensory apparatus that aids balance and hearing
inner ear
Golgi apparatus
cytochrome
substrate
22. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes
Rh factor
thymus
commensal
endosperm
23. A foreign protein that stimulates the production of antibodies when introduced into the body of an organism
placenta
carbon cycle
integument
antigen
24. The description of a plant life cycle that consists of a diploid - asexual - sporophyte generation and a haploid - sexual - gametrophyte generation
antibiotic
exocrine
alternation of generations
diencephalon
25. A form of asexual reproduction in which the egg develops in the absence of sperm
sphincter
parthenogenesis
inversion
zygote
26. A plant that lives on another plant mensalistically
spindle
vacuole
epiphyte
chyme
27. The process of breaking down large organic molecules into smaller ones
pons
hypertonic
digestion
hypotonic
28. In plants - an area of undifferentiated tissue covered by embryonic leaves
spiracle
NADP
antibody
bud
29. The part of the body of an animal that is between the neck or head and the abdomen
sex chromosome
thorax
prophase
endoderm
30. An air sac in the lung; the site of respiratory exchange - involving diffusion of oxygen and carbon dioxide between the air in the alveolus and the blood in the capillaries
rhodopsin
enzyme
secondary tissue
alveolus
31. One or two or more types of genes - each representing a particular trait; many alleles exist for a specific gene locus
regeneration
allele
vacuole
selective breeding
32. A network or mesh of fibrils - fibers or filaments
phloem
asexual reproduction
imprinting
reticulum
33. A complex carrier mechanism located on the inside of the inner mitochondrial membrane of the cell; releases energy and is used to form ATP
Protista
electron transport chain
guard cell
humerus
34. The part of the flower that produces pollen
stamen
chemotropism
endemic
anaphase
35. The male gonads that produce sperm and male hormones
rhodopsin
analogous
testes
cytoplasm
36. Usually referred to as ACTH and secreted by the anterior lobe of the pituitary gland; stimulates the adrenal cortex to produce its characteristic hormones
gylcolysis
aerobe
pseudopod
adrenocorticotrophic hormone
37. A lymph tubule located in the villus that absorbs fatty acids
plasma
exocytosis
lacteal
oogenesis
38. Describes cells (gametes) that have half the chromosome number typical of the species
NAD
lymph capillary
haploid
estrogen
39. Secreted by the anterior pituitary gland - this hormone stimulates the conversion of a follicle into the corpus luteum and the secretion of progesterone by the corpus luteum
carnivore
luteinizing hormone (LH)
smooth muscle
malpighian tubules
40. Protein threads that form in the blood during clotting
pairing
medusa
fibrin
adaptive radiation
41. A mutation in which a single nucleotide base is substituted for another nucleotide base - or an extra nucleotide base is added
spiracle
progesterone
cambium
point mutation
42. A jellyfish
Golgi apparatus
fallopian tube
medusa
recombinant DNA technology
43. The place of attachment of the mitotic fiber to the chromosome
centromere
smooth muscle
herbivore
Calvin cycle
44. A grouping of neuron cell bodies that acts as a coordinating center
eukaryote
ganglion
aqueous humor
osmoregulation
45. The organelle that provides mechanical support and carries out motility functions for the cell
small intestine
cytoskeleton
rickettsia
enzyme
46. A mitotic or meiotic stage in which the chromosomes become visible and during which the spindle fibers form; synapsis takes place during the first meiotic prophase
prophase
peptide
mucosa
plasmodium
47. A portion of the CNS consisting of cytons (cell bodies) - their dendrites and synaptic connections
geographical barrier
hypertonic
oogenesis
gray matter
48. A pyrimidine component of nucleic acids and nucleotides; pairs with adenine in DNA
progesterone
thymine
nictitating membrane
gene frequency
49. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage
morula
oxidation
spermatogenesis
Bowman's capsule
50. Occurs when certain traits are determined by genes on sex chromosomes
hypertonic
thrombokinase
sex linkage
sucrase