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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. Attaches to an enzyme and blocks the enzyme reaction rather than enhancing it - like a prosthetic group would.
The cell's 'powerhouses'
Phosphorous
An inhibitor
Aggregate fruit
2. Is the outermost of the three main layers of an embryo.
Genetic screening
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
Share electrons
Ectoderm tissue
3. An enzyme is unaffected by the reactions it catalyzes
Epidermal tissue
So it can be used over and over again.
Meristem tissue
Bronchi
4. The large brain and upright posture of Homo Sapiens...
Did not evolve together
Pi
Aves
Stem tissues
5. Are organic cofactors or coenzymes that are required by some enzymatic reactions.
Plasmodesmata
Aves
Ribonucleic acid
Vitamins
6. Is a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).
Genetic imprinting
Biogeochemical cycles
Scurvy
Chromatin
7. Respiratory organs within insects
Anabolsim
Enzymes catalyze reactions
Attraction of atoms of different polarity
Spiracles
8. An orienting response to light.
Phototropism
Gymnosperms
Arthropoda
Gametocide
9. The class composed of birds.
parasitic
Chromosome
Lymphocytes
Aves
10. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.
Cellular Metabolism
The community
Interphase
Morula
11. Produces the most ATP molecules - yielding 34 ATPs per glucose molecule.
Chromatin
Vascular bundles
Electron Transfer System (ETS)
The habitat of an organism includes
12. Contains many genes and is a structure comprised of linear DNA and associated proteins.
So it can be used over and over again.
Chromosome
Kingdom Plantae
Early hominids...
13. Is weaker than ionic - covalent - disulfide - or double bonds.
Stem tissues
Catabolism
A hydrogen bond
Angiosperms
14. A hydrogen bond involves the ________________ and can be easily broken.
Chromosome
Attraction of atoms of different polarity
Fixed Action Pattern (FAP)
Imprinting
15. Ended with the extinction of the dinosaurs.
Mesozoic era
Catabolism
Non-protein
Chromatin
16. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.
Gnathostomata
Ectoderm tissue
Ecotone
About five million years ago...
17. Controls olfactory lobes (smell)
Share electrons
The hormone aldosterone
Forebrain
R-selection
18. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.
A lysosome
parasitic
Gymnosperms
Iisotonic state
19. Must be present for photosynthesis to occur - it is not used up in the process.
Chlorophyll
Common elements found in proteins
Free ribosomes
Genetic maintenance
20. This is a carboxyl group and is the signature group found within organic acids.
The products of the Krebs cycle
Photolysis is a reaction of photosynthesis where
C ---OH
Larynx
21. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.
Cerebellum
Chordata
Chlorophyll has the ability to
Habitat
22. 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 theory of punctuated equilibrium
Porifera
Carbon
The Cambrian Period
23. Is the process that releases energy for use by the cell.
Multiple fruit
The synthesis of ATP molecules to store energy is an example of
The pituitary gland
Cellular Respiration
24. Is an ion that binds to an enzyme making it more able to catalyze a reaction.
A sex linked recessive disease
Cnidaria
Iisotonic state
A prosthetic group
25. The vocal cords are found in the larynx.
Population
Larynx
Genetic maintenance
Epidermal tissue
26. Is a packet of digestive enzymes that destroy cellular wastes.
The products of the Krebs cycle
A lysosome
Free ribosomes
Destroy most enzymes
27. 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.
The community
Habitat
Iisotonic state
Precambrian period
28. Nonvascular plants such as mosses which lack tissue for conducting food or water.
The cuticle
Balance
Kingdom Fungi
Bryophytes
29. Are cells involved in immunity and are produced in bone marrow as stem cells.
Allopatric speciation
Restriction enzymes
Lymphocytes
Larynx
30. The transfer of electrons.
Ionic bonds involve
Hemophilia
R-selection
Desert
31. Is a special protein that acts as a catalyst for organic reactions.
An enzyme
Cenozoic era
As energy is transferred through trophic levels
Biosphere
32. Becomes available for erosion as undersea sedimentary rocks are up-thrust by volcanic activity - erosion releases it from rocks into streams where it combines with oxygen to form phosphates in lakes that are then absorbed by plants - it is recycled t
Phosphorous
Phloem tissue
Bryophytes
Vitamins
33. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.
Stomach secretions
C ---OH
pH of Water
Cerebrum
34. Is secreted by the adrenal cortex to promote sodium reabsorption in the kidney.
Protista
The pancreas
The hormone aldosterone
Ecological niches open up
35. Layer that will become the gut lining as well as some accessory structures.
Xylem tissue
Cnidaria
Endoderm
The pancreas
36. Is the waxy protective outer coating of leaves.
Paleozoic era
The Cambrian Period
Characteristics of water valuable to living organisms
The cuticle
37. Algae and Protozoa belong to the kingdom...
A hydrogen bond
Recycled environmental factors
Tundra
Protista
38. Plants and animals obtain usable nitrogen
Through nitrogen fixing bacteria and lighting
Prothallus
parasitic
Enzymes catalyze reactions
39. Allows for the genetic code to be preserved in future generations of cells.
An enzyme
Destroy most enzymes
Lysis
DNA replication
40. 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.
Non-protein
Chromosome
Trachea
Sudden appearance and disappearance of fossil species
41. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.
The community
Ribonucleic acid
Meristem tissue
Trachea
42. Is disorganized - unravelled - DNA with histones attached.
Cytosine
The products of the Krebs cycle
Chromatin
Vascular bundles make up the
43. Absorb a photon of light and is found in the grana of the chloroplast.
The pancreas
Gymnosperms
Chlorophyll has the ability to
Enzymes catalyze reactions
44. Breaking down
The Cell Theory
Catabolism
Filtered by the liver
Free ribosomes
45. The phyla of round worms.
Restriction enzymes
Kingdom Plantae
Nematoda
Chromosome
46. Are where the sugars synthesized by photosynthesis travel through to various parts of the plant.
Population
Vitamins
Vascular bundles
Pi
47. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.
Through nitrogen fixing bacteria and lighting
R-selection
Phyla
Vitamin C
48. 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
Carrying capacity
Gametocide
The nucleus
The Nitrogen cycle
49. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.
A species role in the food chain is part of its
Carbon
The community
Vascular bundles
50. 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
About five million years ago...
Lactose
The Nitrogen cycle