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Test your basic knowledge |
CLEP Biology
Start Test
Study First
Subjects
:
clep
,
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 transfer of electrons.
Ecotone
About five million years ago...
Ionic bonds involve
Ectoderm
2. Bacteria break ammonia into nitrites - then into nitrates that are usable by plants; volcanic activity produces ammonia and nitrates that enter the soil and can be absorbed by plants; lightning reacts with atmospheric nitrogen to form nitrates that a
Saprophytic
The Nitrogen cycle
Hemophilia
Restriction enzymes
3. Veins in the leaf and are also distributed throughout the stem
Nucleotides
The community
B Cells
Vascular bundles make up the
4. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.
Pharynx
Genetic imprinting
The cell membrane
So it can be used over and over again.
5. Decomposition of living matter for consumption.
Epidermal tissue
Cerebrum
parasitic
Filtered by the liver
6. A hydrogen bond involves the ________________ and can be easily broken.
Attraction of atoms of different polarity
Kingdom Protista
Vitamins
Pharynx
7. Fossilized burrows from multicellular organisms begin to appear in the geological record approximately 700 million years ago during the Precambrian period. These multicellular animals had only soft parts and could not be fossilized.
Precambrian period
The hormone aldosterone
A prosthetic group
Xylem tissue
8. Process in which elements - chemical compounds - and other forms of matter are passed from one organism to another and from one part of the biosphere to another.
Biogeochemical cycles
Chromatin
A hydrogen bond
The biosphere
9. Algae and Protozoa belong to the kingdom...
Protista
Spiracles
The Nitrogen cycle
Chimpanzees
10. Is weaker than ionic - covalent - disulfide - or double bonds.
Precambrian period
A hydrogen bond
Savanna
Ionic bonds involve
11. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.
The community
Genetic maintenance
Ecotone
Kingdom Protista
12. Are formed when the plasma membrane of a cell encloses a molecule outside the membrane - then releases a membrane bound sack containing the desired molecule into the cytoplasm. This process allows the cell to absorb molecules that are larger in size
Endocytic vesicles
So it can be used over and over again.
Enzymes catalyze reactions
The biosphere
13. Cleave strands of DNA segments at certain sites.
Cerebrum
Restriction enzymes
Angiosperms
Characteristics of water valuable to living organisms
14. The systematic search for individuals with a specific genotype in a delineated population.
Niche
Ectoderm tissue
Hemophilia
Genetic screening
15. Synthesis
The primary role of DNA in the cell
Anabolism
The salivary gland
As energy is transferred through trophic levels
16. Is found in the root cap and is responsible for quick growth in the roots.
Genome
Meristem tissue
Non-protein
R-selection
17. Absorb a photon of light and is found in the grana of the chloroplast.
Chlorophyll has the ability to
Vitamins
The cell membrane
Endoderm
18. Process of breaking down complex materials (foods) to form simpler substances and release energy.
So it can be used over and over again.
Through nitrogen fixing bacteria and lighting
Catabolism
The key limiting factor on cell size
19. Can be accounted for by the theory of punctuated equilibrium. The fossil record shows periods of stability with regard to appearance and disappearance of species as well as periods of sudden change.
Sudden appearance and disappearance of fossil species
Free ribosomes
The primary role of DNA in the cell
The Cambrian Period
20. Covers and protects the leaf.
Angiosperms
Cuticle
Phosphorous
Early hominids...
21. Super-class of vertebrae including organisms with no jaws.
Catabolism
Aganatha
Restriction enzymes
Centrioles
22. Are organic cofactors or coenzymes that are required by some enzymatic reactions.
Biosphere
Vitamins
Stomach secretions
Share electrons
23. An orienting response to light.
Imprinting
Habituation
Phototropism
Habitat
24. In order to become an established part of an island ecosystem there must be a populations large enough to ensure _________ - a food source - a suitable habitat - and a source of moisture.
Successful reproduction
Chimpanzees
Mesozoic era
Population
25. Produce adrenaline. This hormone is a well-known constrictor of blood vessels.
Annelida
Trachea
A lysosome
The adrenal glands
26. States that where random mating is occurring within a population that is in equilibrium with its environment - the gene frequencies and genotype ratios will remain constant from generation to generation. It is a mathematical formula that shows why re
Ectoderm
A species role in the food chain is part of its
The Hardy-Weinberg Law of Equilibrium
The products of the Krebs cycle
27. Niche
Midbrain
Gregor Medel
Color blindness
A species role in the food chain is part of its
28. Stood upright before there was an increase in brain size.
Catabolism
Vitamins
Early hominids...
The Hardy-Weinberg Law of Equilibrium
29. The phyla of sponges.
Porifera
Phototropism
Endoderm
Iisotonic state
30. Respiratory organs within insects
Aganatha
The pituitary gland
Midbrain
Spiracles
31. Layer that will become the gut lining as well as some accessory structures.
Endoderm
An enzyme
Parenchyma tissue
Lysosomes
32. Disease causing
Meristem tissue
Filtered by the liver
The Cell Theory
pathogenic
33. Produce antibodies into the bloodstream that find and attach themselves to foreign antigens (toxins - bacteria).
B Cells
Natality
Successful reproduction
Arthropoda
34. It secretes saliva which enters the digestive tract and aids the digestive process.
Genetic imprinting
parasitic
Hydrolysis
The salivary gland
35. Are tubes constructed of a geometrical arrangement of microtubules in a pinwheel shape. Their function includes the formation of new microtubules - but is primarily to form the structural skeleton around which cells split during mitosis and meiosis.
Very specific
Chimpanzees
Centrioles
The products of the Krebs cycle
36. This is a carboxyl group and is the signature group found within organic acids.
Attraction of atoms of different polarity
Larynx
C ---OH
The biosphere
37. The size of a cell is limited by the ratio of its surface area to volume.
The key limiting factor on cell size
Hypothalamus
Carrying capacity
So it can be used over and over again.
38. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.
The products of the Krebs cycle
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
Cenozoic era
An enzyme
39. Secretes insulin to lower blood sugar and maintain equilibrium. A person eats three candy bars. Within minutes this endocrine gland affects blood-glucose homeostasis.
The pancreas
Sudden appearance and disappearance of fossil species
Chlorophyll has the ability to
Destroy most enzymes
40. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.
Phototropism
Cellular Respiration
Mesozoic era
Cell walls
41. Is composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.
Hydrolysis
Bryophytes
The cell membrane
The salivary gland
42. Is disorganized - unravelled - DNA with histones attached.
Balance
Carbon
Chromatin
Phyla
43. Produces the most ATP molecules - yielding 34 ATPs per glucose molecule.
The key limiting factor on cell size
The community
Electron Transfer System (ETS)
The cell membrane (plasma membrane)
44. Controls balance and muscle coordination
Cerebellum
Chordata
Gene Migration
Plasmodesmata
45. The cells of a developing embryo (at the gastrula stage) differentiate into layers - that will later develop into different tissues and organs - including the mesoderm - ectoderm - and endoderm.
Germ layers
Protista
The Cambrian Period
The pancreas
46. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.
Destroy most enzymes
About five million years ago...
Gametogenesis
Cellulose - starch - lipid - and sugar molecules
47. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.
Trachea
Annelida
Catabolism
Germ layers
48. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.
pH of Water
Centrioles
Nucleotides
Carbon
49. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.
Cerebellum
Aganatha
Phosphorous gas
The evolution leading to Homo Sapiens...
50. The destruction of gametes - (sex cells such as sperm and eggs).
Fixed Action Pattern (FAP)
Gametocide
The salivary gland
Gnathostomata