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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. A hydrogen bond involves the ________________ and can be easily broken.
Attraction of atoms of different polarity
Circadian rhythms
R-selection
Gymnosperms
2. Is the control of protein synthesis. Genetic traits are expressed and specialization of cells occur as a result of the combination of proteins produced by the DNA of a cell.
The primary role of DNA in the cell
Balance
Larynx
Gymnosperms
3. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting
Hemophilia
Multiple fruit
Mature sporophyte
Genetic screening
4. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.
The Cambrian Period
Allopatric speciation
Porifera
Spiracles
5. A suffix meaning 'to break apart.' O || ||
Lysosomes
Share electrons
Lysis
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
6. Disease causing
The primary role of DNA in the cell
Forebrain
pathogenic
The cell membrane
7. Must be present for photosynthesis to occur - it is not used up in the process.
Forebrain
Cerebrum
Chlorophyll
About five million years ago...
8. Is the sugar that lactase acts upon.
Simple fruits
Photolysis is a reaction of photosynthesis where
Aggregate fruit
Lactose
9. The class composed of birds.
Aves
Color blindness
Lactose
Chromatin
10. Niche
Pharynx
A species role in the food chain is part of its
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
Cerebrum
11. The total amount of genetic information available for a given species.
Color blindness
Spiracles
About five million years ago...
Genome
12. Channels is cell membranes that carry water between cells.
Ecological niches open up
Parenchyma tissue
Plasmodesmata
Hypothalamus
13. In DNA Guanine pairs with...
Very specific
An enzyme
Cytosine
Multiple fruit
14. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.
Through nitrogen fixing bacteria and lighting
Mesozoic era
Morula
Prosthetic groups
15. Energy transformations that occur as chemicals are broken down or synthesized within the cell.
Stomach secretions
Mesoderm
Photolysis is a reaction of photosynthesis where
Cellular Metabolism
16. Is the number of organisms that can be supported within a particular ecosystem.
Altruism
Imprinting
Niche
Carrying capacity
17. Is secreted by the adrenal cortex to promote sodium reabsorption in the kidney.
Arthropoda
Genetic imprinting
Silicon
The hormone aldosterone
18. Is a packet of digestive enzymes that destroy cellular wastes.
Will increase the reaction rate
A lysosome
Paleozoic era
Plasmodesmata
19. The individual we recognize as an adult fern.
Mature sporophyte
Scurvy
The primary role of DNA in the cell
Kingdom Plantae
20. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).
Arthropoda
Pharynx
Ecotone
Hydrolysis
21. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.
Carbon
Cellular Respiration
Protista
The evolution leading to Homo Sapiens...
22. Is disorganized - unravelled - DNA with histones attached.
Meristem tissue
Chromatin
The Nitrogen cycle
Biogeochemical cycles
23. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.
Habitat
Angiosperms
The pituitary gland
Simple fruits
24. Controls hunger and thirst
Genetic screening
Cerebrum
Enzymes catalyze reactions
Hypothalamus
25. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.
Ionic bonds involve
Cytosine
Fixed Action Pattern (FAP)
The community
26. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.
Porifera
Mesoderm
Kingdom Protista
Prothallus
27. Fruits that develop from a single ripened ovary (apple - olive - acorn - cucumber).
Simple fruits
The biosphere
pH of Water
The theory of punctuated equilibrium
28. Breaking down
Iisotonic state
DNA replication
Alveoli
Catabolism
29. 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
Tundra
Restriction enzymes
The salivary gland
The Nitrogen cycle
30. 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
Kingdom Protista
pathogenic
The Hardy-Weinberg Law of Equilibrium
Will increase the reaction rate
31. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.
Paleozoic era
Genome
Anabolism
Cellulose - starch - lipid - and sugar molecules
32. Chlorophyll pigments absorb photons of light - leaving the chlorophyll in a higher energy (excited) state - these then supply energy to reactions that produce ATP from ADP and Pi.
Carbon
Photolysis is a reaction of photosynthesis where
Isotonic Conditions
Chimpanzees
33. The size of a cell is limited by the ratio of its surface area to volume.
The key limiting factor on cell size
A sex linked recessive disease
As energy is transferred through trophic levels
Protista
34. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.
Aganatha
Balance
Bryophytes
The cell membrane (plasma membrane)
35. The sharp boundary of an ecosystem.
Stem tissues
Vitamins
Ecotone
pH of Water
36. Is a special protein that acts as a catalyst for organic reactions.
Plasmodesmata
An enzyme
Isotonic Conditions
Biogeochemical cycles
37. Ended with the extinction of the dinosaurs.
The community
Chlorophyll
Mesozoic era
Nucleotides
38. Are membrane-bound organelles that contain digestive enzymes that digest dead or unused material within the cell or materials absorbed by the cell for use.
Porifera
Lysosomes
Cerebrum
Germ layers
39. The phyla of round worms.
Gregor Medel
Nematoda
Savanna
Meristem tissue
40. Attaches to an enzyme and blocks the enzyme reaction rather than enhancing it - like a prosthetic group would.
Vitamins
An inhibitor
Ecological niches open up
Genetic imprinting
41. Are organic cofactors or coenzymes that are required by some enzymatic reactions.
Meristem tissue
Porifera
The community
Vitamins
42. Is weaker than ionic - covalent - disulfide - or double bonds.
A hydrogen bond
Cellulose - starch - lipid - and sugar molecules
Restriction enzymes
Vitamins
43. Enzymes are usually __________ to certain reactions.
Cellular Metabolism
Annelida
Non-protein
Very specific
44. Occurs when an individual learns not to respond to a particular stimulus - for instance when a stimulus is repeated many times without consequence.
Biosphere
Habituation
Kingdom Animalia
An inhibitor
45. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.
Meristem tissue
Recycled environmental factors
Centrioles
North America
46. Has extreme cold temperatures - low precipitation - modified grassland - perma-frost - a short growing season and some plants and animals.
Desert
Ecological niches open up
Share electrons
Tundra
47. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.
A mutation
Savanna
Chimpanzees
Plasmodesmata
48. Assumes that there are periods of stability during which little evolutionary change occurs - and that speciation can occur rapidly over a very short period of time.
The adrenal glands
Saprophytic
Stomach secretions
The theory of punctuated equilibrium
49. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).
Balance
Gametocide
Biosphere
Cellular Metabolism
50. All store energy within their chemical bonds.
Nematoda
Anabolism
Cellulose - starch - lipid - and sugar molecules
Bronchi