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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. Is found in the root cap and is responsible for quick growth in the roots.
Destroy most enzymes
Characteristics of water valuable to living organisms
Lysis
Meristem tissue
2. 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.
pathogenic
About five million years ago...
A gene is
Lysosomes
3. In DNA Thymine pairs with...
Endoderm
Genome
Gnathostomata
Adenine
4. Occurs when an individual from an adjacent population of the same species immigrates and breeds with a member of a previously locally isolated group - resulting in a change in the gene pool.
Cenozoic era
Gene Migration
Centrioles
The cell's 'powerhouses'
5. 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.
Scurvy
The products of the Krebs cycle
Population
Precambrian period
6. The sharp boundary of an ecosystem.
Gnathostomata
Iisotonic state
Ecotone
North America
7. Is a substance that changes the speed of a reaction without being affected itself.
Plasmodesmata
A catalyst
Cenozoic era
R-selection
8. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.
Stomach secretions
DNA replication
The pituitary gland
Carbon
9. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.
The primary role of DNA in the cell
Cerebrum
Paleozoic era
Ectoderm tissue
10. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.
Fixed Action Pattern (FAP)
Scurvy
The evolution leading to Homo Sapiens...
Multiple fruit
11. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.
North America
Anabolsim
Mature sporophyte
The nucleus
12. 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.
Ribonucleic acid
parasitic
A sex linked recessive disease
Germ layers
13. Protein synthesis
Color blindness
Will increase the reaction rate
The nucleus
DNA produces particular genetic traits through
14. Is a kingdom that includes algae and protozoa.
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
Gregor Medel
Protista
The evolution leading to Homo Sapiens...
15. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.
Characteristics of water valuable to living organisms
Angiosperms
Porifera
Early hominids...
16. Is a packet of digestive enzymes that destroy cellular wastes.
Phloem tissue
The primary role of DNA in the cell
A lysosome
Ribonucleic acid
17. Respiratory organs within insects
Chimpanzees
Spiracles
Prothallus
Alveoli
18. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.
Carbon
Through nitrogen fixing bacteria and lighting
Habitat
Endoderm
19. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.
Interphase
Endocytic vesicles
Savanna
Genetic maintenance
20. Transfers water and does not require sieve plates to allow nutrients through.
Xylem tissue
Pi
Trachea
Centrioles
21. Subsets below the kingdom level
Mesoderm
A hydrogen bond
Phyla
Bryophytes
22. Studied the relationships between traits expressed in parents and offspring and the genes that caused the traits to be expressed.
Gregor Medel
Gnathostomata
Savanna
Lactose
23. All store energy within their chemical bonds.
Habituation
Cellulose - starch - lipid - and sugar molecules
Attraction of atoms of different polarity
Kingdom Plantae
24. A suffix meaning 'to break apart.' O || ||
The products of the Krebs cycle
Lysis
Lactose
Multiple fruit
25. 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.
A catalyst
Chromosome
Photolysis is a reaction of photosynthesis where
Cnidaria
26. An orienting response to light.
Phototropism
Allopatric speciation
Angiosperms
T Cells
27. The number of organisms in a given community - can be above or below the carrying capacity.
Free ribosomes
Altruism
Circadian rhythms
Population
28. 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.
Catabolism
Successful reproduction
Cell walls
Phototropism
29. Super-class of vertebrae including organisms with no jaws.
Porifera
A prosthetic group
Simple fruits
Aganatha
30. The size of a cell is limited by the ratio of its surface area to volume.
Attraction of atoms of different polarity
Destroy most enzymes
The salivary gland
The key limiting factor on cell size
31. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).
Enzymes catalyze reactions
Biosphere
Ecological niches open up
Free ribosomes
32. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).
The community
Ectoderm
Multiple fruit
Morula
33. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.
T Cells
The Nitrogen cycle
DNA replication
Habitat
34. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.
An inhibitor
Anabolism
A sex linked recessive disease
A mutation
35. Layer that will become the skin - some endocrine glands - and the nervous system.
Ectoderm
Biosphere
Did not evolve together
A sex linked recessive disease
36. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.
Stem tissues
Morula
C ---OH
Color blindness
37. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).
Hydrolysis
Silicon
Mesoderm
Successful reproduction
38. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.
Meristem tissue
Kingdom Animalia
Prothallus
Mesozoic era
39. Is a phylum that contains jellyfish - hydra - etc.
Savanna
Electron Transfer System (ETS)
Cnidaria
Spiracles
40. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.
Mesoderm
Silicon
Genome
Free ribosomes
41. Some enzymes contain a __________ component that is essential to their functions.
Attraction of atoms of different polarity
Nucleotides
Scurvy
Non-protein
42. Is the outermost layer of cells of the stem.
Vascular bundles
Kingdom Fungi
The cell membrane
Epidermal tissue
43. The phyla composed of segmented worms.
Phototropism
Nematoda
Cytosine
Annelida
44. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.
Parenchyma tissue
Nucleotides
Isotonic Conditions
Silicon
45. A type of innate behavior (instinct.) The FAP is a preprogrammed response to a particular stimulus (known as a releaser stimulus). FAP's include courtship behaviors and feeding of young. These are not learned behaviors - they are automatically perfor
Germ layers
Porifera
Fixed Action Pattern (FAP)
Through nitrogen fixing bacteria and lighting
46. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.
Carrying capacity
About five million years ago...
Midbrain
The Cambrian Period
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
The synthesis of ATP molecules to store energy is an example of
Epidermal tissue
Lymphocytes
48. Proposes that those individuals within a population that are most adapted to the environment are also the most likely individuals to produce viable offspring.
Differential reproduction
Gametogenesis
A lysosome
Mature sporophyte
49. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.
A mutation
Chromosome
Vitamin C
Cell walls
50. 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
Genetic screening
Alveoli
A gene is