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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 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.
Nucleotides
Germ layers
Ribonucleic acid
Circadian rhythms
2. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.
Ecological niches open up
Meristem tissue
Catabolism
A catalyst
3. 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
Hemophilia
Phosphorous
Cell walls
The primary role of DNA in the cell
4. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.
An enzyme
Silicon
Genetic imprinting
The biosphere
5. It secretes saliva which enters the digestive tract and aids the digestive process.
Prosthetic groups
The salivary gland
Chromatin
Morula
6. The transfer of electrons.
Precambrian period
Filtered by the liver
Ionic bonds involve
North America
7. Engages in both passive and active transport.
Phosphorous
Enzymes catalyze reactions
The cell membrane (plasma membrane)
Iisotonic state
8. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.
parasitic
T Cells
Savanna
Carbon
9. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).
Meristem tissue
Ectoderm tissue
Kingdom Plantae
Aggregate fruit
10. The phyla composed of segmented worms.
Annelida
Gametogenesis
Attraction of atoms of different polarity
Successful reproduction
11. All store energy within their chemical bonds.
Cellulose - starch - lipid - and sugar molecules
Destroy most enzymes
Ectoderm
Larynx
12. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.
The community
Chimpanzees
Pi
Differential reproduction
13. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.
Pi
Cell walls
Phosphorous gas
Stomach secretions
14. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.
About five million years ago...
Lysis
Vitamins
Share electrons
15. The class composed of birds.
Aves
Lymphocytes
Cellular Metabolism
The community
16. 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.
Ecological niches open up
A prosthetic group
Endoderm
Sudden appearance and disappearance of fossil species
17. Inorganic phosphate
Pi
Genetic screening
Characteristics of water valuable to living organisms
Vitamins
18. Is the sugar that lactase acts upon.
Lactose
The cell membrane (plasma membrane)
Habitat
The salivary gland
19. Is a molecule that stores information for protein synthesis and genetic coding.
Ribonucleic acid
The pancreas
Balance
Chlorophyll
20. The phyla of round worms.
Nematoda
Cellular Metabolism
Imprinting
Vitamin C
21. Some enzymes contain a __________ component that is essential to their functions.
Gregor Medel
Non-protein
A catalyst
Forebrain
22. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.
Precambrian period
Cell walls
Nucleotides
Carbon
23. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.
Habituation
Adenine
Cell walls
Color blindness
24. Are tubes constructed of a geometrical arrangement of microtubules in a pinwheel shape. Their function includes the formation of new microtubules - but is primarily to form the structural skeleton around which cells split during mitosis and meiosis.
Cerebellum
Simple fruits
Centrioles
Spiracles
25. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).
Destroy most enzymes
DNA replication
North America
Multiple fruit
26. Contains organisms that are multicellular eukaryotes including molds and mushrooms.
The hormone aldosterone
Ecological niches open up
North America
Kingdom Fungi
27. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.
Aves
Ecological niches open up
Free ribosomes
Desert
28. The size of a cell is limited by the ratio of its surface area to volume.
The key limiting factor on cell size
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
Mesozoic era
C ---OH
29. Niche
Interphase
Isotonic Conditions
A species role in the food chain is part of its
Meristem tissue
30. Biotic (living) factors such as population and food source - and abiotic (non-living) factors such as weather - temperature - soil features - sunlight).
T Cells
C ---OH
The habitat of an organism includes
Internodal tissue
31. Contains optic lobes - controls sight.
The salivary gland
The pancreas
DNA replication
Midbrain
32. Is made of stacked cells connected by sieve plates that allow nutrients to pass from cell to cell. They transport food made in the leaves (by photosynthesis) to the rest of the plant).
Cnidaria
The community
Phloem tissue
Chlorophyll has the ability to
33. Are cells involved in immunity and are produced in bone marrow as stem cells.
An inhibitor
The habitat of an organism includes
Lymphocytes
Protista
34. Is the number of organisms that can be supported within a particular ecosystem.
Carrying capacity
Lysosomes
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
Genome
35. 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
Plasmodesmata
Ribonucleic acid
Spiracles
36. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.
Phosphorous gas
Electron Transfer System (ETS)
Mature sporophyte
Prosthetic groups
37. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.
Biosphere
A hydrogen bond
The nucleus
Cerebrum
38. Small - green - heart-shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil
A sex linked recessive disease
Meristem tissue
Phyla
Prothallus
39. Is found in the root cap and is responsible for quick growth in the roots.
Meristem tissue
Hydrolysis
North America
Ionic bonds involve
40. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.
Saprophytic
Cellulose - starch - lipid - and sugar molecules
Nucleotides
Mesoderm
41. Are surrounded by capillaries that allow for carbon dioxide to diffuse into the lungs and oxygen to diffuse out.
Alveoli
DNA produces particular genetic traits through
Stomach secretions
Bryophytes
42. The preservation of the integrity of genetic information from one generation to another.
The pituitary gland
Cytosine
Cerebellum
Genetic maintenance
43. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).
pH of Water
Endocytic vesicles
Bryophytes
Gene Migration
44. Anabolism
The synthesis of ATP molecules to store energy is an example of
Adenine
Interphase
The habitat of an organism includes
45. Process of breaking down complex materials (foods) to form simpler substances and release energy.
Saprophytic
Catabolism
North America
Kingdom Fungi
46. 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.
Kingdom Animalia
Isotonic Conditions
The theory of punctuated equilibrium
The pancreas
47. Produce adrenaline. This hormone is a well-known constrictor of blood vessels.
The adrenal glands
Catabolism
The cell membrane (plasma membrane)
Phloem tissue
48. Refers to the birthrate of a population.
Natality
R-selection
Protista
Cytosine
49. Mitochondria - they constitute the center of cellular respiration.
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50. Super-class of vertebrae including organisms with jaws.
A lysosome
Phototropism
Genetic screening
Gnathostomata
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