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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 number of organisms in a given community - can be above or below the carrying capacity.
Photolysis is a reaction of photosynthesis where
Population
Germ layers
Internodal tissue
2. Cleave strands of DNA segments at certain sites.
Ribonucleic acid
Restriction enzymes
Kingdom Animalia
An enzyme
3. Controls balance and muscle coordination
Gregor Medel
Ectoderm tissue
Mitochondria
Cerebellum
4. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.
Interphase
Gregor Medel
Very specific
The Cell Theory
5. 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
Color blindness
Anabolsim
Phosphorous
The theory of punctuated equilibrium
6. Are produced when water passes through the cell membrane by osmosis from an area of higher concentration to an area of lower concentration - to equalize water concentration.
The key limiting factor on cell size
Tundra
Isotonic Conditions
The nucleus
7. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.
Ecological niches open up
Angiosperms
As energy is transferred through trophic levels
The primary role of DNA in the cell
8. Ended with the extinction of the dinosaurs.
pH of Water
Hydrolysis
Mesozoic era
Pi
9. 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.
Blastula
Successful reproduction
Photolysis is a reaction of photosynthesis where
Mature sporophyte
10. Controls olfactory lobes (smell)
Hydrolysis
The pituitary gland
Forebrain
The key limiting factor on cell size
11. Is an ion that binds to an enzyme making it more able to catalyze a reaction.
The primary role of DNA in the cell
A prosthetic group
The products of the Krebs cycle
The nucleus
12. Some energy is lost as heat and becomes unusable.
Characteristics of water valuable to living organisms
A species role in the food chain is part of its
As energy is transferred through trophic levels
T Cells
13. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh
Differential reproduction
North America
Circadian rhythms
Lymphocytes
14. Super-class of vertebrae including organisms with jaws.
A species role in the food chain is part of its
Protista
Gnathostomata
Phototropism
15. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.
Chimpanzees
The nucleus
The evolution leading to Homo Sapiens...
Chromosome
16. 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 theory of punctuated equilibrium
Ionic bonds involve
An enzyme
Imprinting
17. 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.
Chromatin
Germ layers
So it can be used over and over again.
Ectoderm
18. Is the number of organisms that can be supported within a particular ecosystem.
Adenine
Allopatric speciation
An enzyme
Carrying capacity
19. 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.
Gnathostomata
Genetic imprinting
Interphase
The cell membrane
20. Nonvascular plants such as mosses which lack tissue for conducting food or water.
Porifera
The key limiting factor on cell size
Larynx
Bryophytes
21. The vocal cords are found in the larynx.
Larynx
Cytosine
Recycled environmental factors
About five million years ago...
22. Develops from the morula as a thin layer of cells surrounding an internal cavity.
Catabolism
Blastula
As energy is transferred through trophic levels
Bryophytes
23. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.
Cerebrum
A gene is
Characteristics of water valuable to living organisms
Epidermal tissue
24. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).
Multiple fruit
Successful reproduction
Arthropoda
Phosphorous
25. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.
Ecological niches open up
Balance
Desert
The nucleus
26. The phylum of insects (bees).
Arthropoda
Centrioles
Protista
Ionic bonds involve
27. Are the organelles where cellular respiration occurs.
Mitochondria
Restriction enzymes
Free ribosomes
R-selection
28. Is the waxy protective outer coating of leaves.
Enzymes catalyze reactions
The cell's 'powerhouses'
Electron Transfer System (ETS)
The cuticle
29. Is weaker than ionic - covalent - disulfide - or double bonds.
A hydrogen bond
Cuticle
Vascular bundles make up the
The salivary gland
30. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).
Anabolsim
Carrying capacity
North America
Niche
31. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.
The theory of punctuated equilibrium
Centrioles
Habitat
Habituation
32. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.
About five million years ago...
Gametogenesis
An enzyme
Phloem tissue
33. The sharp boundary of an ecosystem.
Endocytic vesicles
Porifera
Fixed Action Pattern (FAP)
Ecotone
34. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.
Morula
Iisotonic state
Chlorophyll
Carbon
35. The most recent and present era. It includes the radiation of flowering plants - the angiosperms.
Cenozoic era
Multiple fruit
Silicon
A catalyst
36. The total amount of genetic information available for a given species.
Aves
Genome
Tundra
Cytosine
37. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.
Savanna
Chromatin
Carbon
Endocytic vesicles
38. In DNA Thymine pairs with...
The nucleus
Centrioles
Adenine
pH of Water
39. Stood upright before there was an increase in brain size.
Characteristics of water valuable to living organisms
Early hominids...
B Cells
The Hardy-Weinberg Law of Equilibrium
40. Decomposition of living matter for consumption.
Genetic maintenance
Did not evolve together
parasitic
Prothallus
41. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).
Aggregate fruit
Isotonic Conditions
pH of Water
Carrying capacity
42. In both living and non-living environments.
Enzymes catalyze reactions
The nucleus
Protista
Characteristics of water valuable to living organisms
43. Channels is cell membranes that carry water between cells.
Balance
Bryophytes
An inhibitor
Plasmodesmata
44. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.
Genetic imprinting
Vitamins
Savanna
Common elements found in proteins
45. The size of a cell is limited by the ratio of its surface area to volume.
Prothallus
The key limiting factor on cell size
Vascular bundles
The cuticle
46. 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
Imprinting
The Nitrogen cycle
Aves
Common elements found in proteins
47. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.
Stem tissues
Gametogenesis
The biosphere
A hydrogen bond
48. 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
Aggregate fruit
Germ layers
Electron Transfer System (ETS)
49. High temperatures
Recycled environmental factors
Destroy most enzymes
Protista
The cell membrane (plasma membrane)
50. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.
Stem tissues
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
R-selection
The primary role of DNA in the cell