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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. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.
Nucleotides
Chordata
Differential reproduction
The cell membrane
2. Super-class of vertebrae including organisms with jaws.
Gnathostomata
Kingdom Protista
Nematoda
Share electrons
3. Transfers water and does not require sieve plates to allow nutrients through.
Xylem tissue
Allopatric speciation
Imprinting
A mutation
4. Is the sugar that lactase acts upon.
Successful reproduction
Lactose
Savanna
The Hardy-Weinberg Law of Equilibrium
5. Stood upright before there was an increase in brain size.
Early hominids...
Arthropoda
Cenozoic era
An enzyme
6. The sharp boundary of an ecosystem.
A gene is
Plasmodesmata
Ecotone
Cenozoic era
7. Some energy is lost as heat and becomes unusable.
Gametogenesis
As energy is transferred through trophic levels
Multiple fruit
Paleozoic era
8. The effect of a substrate concentration on the initial reaction rate in the presence of a limited amount of enzyme: _________________ as the concentration of substrate is increased until all the enzymes are used - then the reaction rate will level of
Will increase the reaction rate
Kingdom Protista
A lysosome
Desert
9. 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.
Isotonic Conditions
Cytosine
Cellular Respiration
A catalyst
10. Is a special protein that acts as a catalyst for organic reactions.
DNA replication
An enzyme
As energy is transferred through trophic levels
Precambrian period
11. Nonvascular plants such as mosses which lack tissue for conducting food or water.
Simple fruits
Saprophytic
Nematoda
Bryophytes
12. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.
Arthropoda
Porifera
A mutation
The nucleus
13. Contains many genes and is a structure comprised of linear DNA and associated proteins.
Share electrons
R-selection
Vascular bundles
Chromosome
14. Is the waxy protective outer coating of leaves.
Natality
Gametocide
The cuticle
So it can be used over and over again.
15. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.
Genetic imprinting
Biosphere
Annelida
Precambrian period
16. Is found on the stem between nodes.
The pituitary gland
Stomach secretions
Ecotone
Internodal tissue
17. A hydrogen bond involves the ________________ and can be easily broken.
Blastula
Plasmodesmata
Hemophilia
Attraction of atoms of different polarity
18. Energy transformations that occur as chemicals are broken down or synthesized within the cell.
The synthesis of ATP molecules to store energy is an example of
Cellular Metabolism
The habitat of an organism includes
C ---OH
19. Allows for the genetic code to be preserved in future generations of cells.
The primary role of DNA in the cell
Phosphorous
DNA replication
Lactose
20. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.
Kingdom Fungi
The hormone aldosterone
Ecological niches open up
Pi
21. Inorganic phosphate
Prosthetic groups
Parenchyma tissue
Mesozoic era
Pi
22. 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.
The cell membrane
The hormone aldosterone
Gametogenesis
Gregor Medel
23. Produces the most ATP molecules - yielding 34 ATPs per glucose molecule.
Biosphere
Genome
Mature sporophyte
Electron Transfer System (ETS)
24. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.
Ecotone
Niche
Habitat
Share electrons
25. 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
Circadian rhythms
Sudden appearance and disappearance of fossil species
Gnathostomata
Phosphorous
26. Is a substance that changes the speed of a reaction without being affected itself.
A catalyst
Forebrain
Hypothalamus
A gene is
27. The total amount of genetic information available for a given species.
Genome
Imprinting
Filtered by the liver
Savanna
28. Is the number of organisms that can be supported within a particular ecosystem.
Carrying capacity
DNA produces particular genetic traits through
Phototropism
Multiple fruit
29. Has an equal (50%) chance of being passed from a carrier mother to a son or a daughter.
Porifera
Endoderm
A sex linked recessive disease
Nucleotides
30. 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.
Morula
Savanna
Pharynx
Cerebellum
31. Engages in both passive and active transport.
Carrying capacity
The cell membrane (plasma membrane)
Non-protein
Simple fruits
32. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).
The pituitary gland
pH of Water
parasitic
Circadian rhythms
33. The preservation of the integrity of genetic information from one generation to another.
Blastula
Germ layers
Genetic maintenance
Kingdom Plantae
34. 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
The Hardy-Weinberg Law of Equilibrium
Anabolsim
Hydrolysis
Successful reproduction
35. 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
Mitochondria
Endocytic vesicles
Characteristics of water valuable to living organisms
36. 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.
Multiple fruit
Stomach secretions
A gene is
Ecological niches open up
37. The phyla of sponges.
Porifera
Niche
Alveoli
The key limiting factor on cell size
38. Is a coenzyme required in the synthesis of collagen.
Anabolsim
Mature sporophyte
Protista
Vitamin C
39. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.
Savanna
Non-protein
Meristem tissue
Chimpanzees
40. Layer that will become the gut lining as well as some accessory structures.
Biosphere
The nucleus
About five million years ago...
Endoderm
41. Digestive enzymes - hydrochloric acid - and gastric juices which aid in digestion. The mucous secreted by the stomach protects the stomach lining from the acids and juices.
Stomach secretions
The biosphere
Genetic screening
Cytosine
42. Transparency - polarity - high specific heat - and density (lower density when solid than when liquid.).
Vitamin C
Characteristics of water valuable to living organisms
Ribonucleic acid
Precambrian period
43. Synthesis
parasitic
Gnathostomata
Anabolism
Porifera
44. The role played by an organism in its food chain.
Niche
Aggregate fruit
Plasmodesmata
Genetic screening
45. 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
Precambrian period
Endocytic vesicles
Anabolsim
Interphase
46. The most recent and present era. It includes the radiation of flowering plants - the angiosperms.
A catalyst
Cenozoic era
Angiosperms
Midbrain
47. Plants and animals obtain usable nitrogen
Pi
Through nitrogen fixing bacteria and lighting
Fixed Action Pattern (FAP)
The Hardy-Weinberg Law of Equilibrium
48. Is a social behavior of an organism that is beneficial to the group at the individual's expense.
About five million years ago...
Imprinting
Altruism
Very specific
49. Enzymes are usually __________ to certain reactions.
Habitat
Very specific
Porifera
The primary role of DNA in the cell
50. Refers to the birthrate of a population.
Circadian rhythms
Early hominids...
Natality
Cell walls