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CLEP Biology
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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 a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).
Imprinting
Scurvy
Endoderm
Protista
2. The phyla of round worms.
Ecotone
Catabolism
Carbon
Nematoda
3. Controls hunger and thirst
Gregor Medel
Balance
Allopatric speciation
Hypothalamus
4. 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.
Angiosperms
Attraction of atoms of different polarity
Cellular Respiration
Germ layers
5. In DNA Guanine pairs with...
Phototropism
Cytosine
The cell's 'powerhouses'
The theory of punctuated equilibrium
6. Are the organelles where cellular respiration occurs.
Mitochondria
pathogenic
Free ribosomes
Annelida
7. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.
Carbon
Silicon
Free ribosomes
Arthropoda
8. Cleave strands of DNA segments at certain sites.
Electron Transfer System (ETS)
Restriction enzymes
Protista
Chromatin
9. Transfers water and does not require sieve plates to allow nutrients through.
The biosphere
Endoderm
Xylem tissue
Carbon
10. Most chemical pollutants accidentally ingested by humans are __________ - mixed with broken down pigments in the bile - then bile is secreted into the small intestine - proceeds to the large intestine - and is expelled in the feces.
Silicon
Filtered by the liver
Pharynx
Blastula
11. Refers to the birthrate of a population.
Midbrain
Centrioles
Natality
A lysosome
12. Is the outermost layer of cells of the stem.
Epidermal tissue
Plasmodesmata
Population
Nematoda
13. Is the sugar that lactase acts upon.
Hypothalamus
Destroy most enzymes
The products of the Krebs cycle
Lactose
14. Veins in the leaf and are also distributed throughout the stem
Bryophytes
Circadian rhythms
Phosphorous
Vascular bundles make up the
15. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.
Vascular bundles make up the
Paleozoic era
The cell membrane (plasma membrane)
Altruism
16. Contains organisms that are multicellular eukaryotes including molds and mushrooms.
The theory of punctuated equilibrium
Carrying capacity
Kingdom Fungi
Biosphere
17. Is the waxy protective outer coating of leaves.
The cuticle
Gene Migration
Precambrian period
pathogenic
18. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.
Carbon
Meristem tissue
A prosthetic group
Non-protein
19. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.
Parenchyma tissue
T Cells
Pi
Chlorophyll has the ability to
20. 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.
R-selection
Anabolsim
Sudden appearance and disappearance of fossil species
T Cells
21. 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.
Successful reproduction
Protista
The pituitary gland
A catalyst
22. 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).
A catalyst
Phloem tissue
Kingdom Plantae
Vascular bundles
23. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).
Mature sporophyte
Prosthetic groups
Restriction enzymes
Hydrolysis
24. Respiratory organs within insects
Population
Attraction of atoms of different polarity
Color blindness
Spiracles
25. Contains many genes and is a structure comprised of linear DNA and associated proteins.
Parenchyma tissue
Chromosome
So it can be used over and over again.
Aves
26. Fruits that develop from a single ripened ovary (apple - olive - acorn - cucumber).
Free ribosomes
Non-protein
Simple fruits
North America
27. Most fossils of Hominids are from continents other than...
Biogeochemical cycles
North America
Catabolism
Ribonucleic acid
28. Engages in both passive and active transport.
As energy is transferred through trophic levels
Phototropism
Cytosine
The cell membrane (plasma membrane)
29. Is the process that releases energy for use by the cell.
Genetic maintenance
The key limiting factor on cell size
Cytosine
Cellular Respiration
30. A hydrogen bond involves the ________________ and can be easily broken.
Attraction of atoms of different polarity
Anabolsim
The products of the Krebs cycle
Very specific
31. Contains multicellular photosynthetic eukaryotic organisms including gymnosperms and angiosperms.
pH of Water
Lysosomes
Kingdom Plantae
The cuticle
32. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.
Cerebrum
Carbon
The community
Larynx
33. When stems bend toward the light it is due to _____________ the hormone auxin - in response to light - migrates from the light to the dark side of the shoot tip. The cells on the dark side now contain more auxin - which causes the cells on that side
Common elements found in proteins
Mesozoic era
Phototropism
DNA replication
34. (of some plants or fungi) feeding on dead or decaying organic matter
About five million years ago...
Saprophytic
Attraction of atoms of different polarity
Angiosperms
35. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).
A species role in the food chain is part of its
Anabolsim
pH of Water
pathogenic
36. Process of breaking down complex materials (foods) to form simpler substances and release energy.
Catabolism
Gametogenesis
A species role in the food chain is part of its
Desert
37. Are organic cofactors or coenzymes that are required by some enzymatic reactions.
Carbon
Cuticle
Vitamins
Endoderm
38. Secretes insulin to lower blood sugar and maintain equilibrium. A person eats three candy bars. Within minutes this endocrine gland affects blood-glucose homeostasis.
Ecological niches open up
Vitamin C
Mesoderm
The pancreas
39. Is disorganized - unravelled - DNA with histones attached.
Chromatin
Cell walls
Altruism
Blastula
40. Is a special protein that acts as a catalyst for organic reactions.
An enzyme
Iisotonic state
Ectoderm tissue
Arthropoda
41. An enzyme is unaffected by the reactions it catalyzes
Blastula
So it can be used over and over again.
Anabolism
The nucleus
42. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.
Phosphorous gas
Altruism
Stem tissues
Habituation
43. The individual we recognize as an adult fern.
Chlorophyll has the ability to
Interphase
Vitamins
Mature sporophyte
44. 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
Saprophytic
Circadian rhythms
Attraction of atoms of different polarity
Chlorophyll
45. Are cells involved in immunity and are produced in bone marrow as stem cells.
The adrenal glands
Adenine
Hemophilia
Lymphocytes
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
An enzyme
Differential reproduction
Phloem tissue
The Nitrogen cycle
47. 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.
Midbrain
Stem tissues
Balance
The cell membrane
48. Transparency - polarity - high specific heat - and density (lower density when solid than when liquid.).
Characteristics of water valuable to living organisms
Multiple fruit
The nucleus
Biosphere
49. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).
Parenchyma tissue
Biosphere
Cenozoic era
Successful reproduction
50. Is a coenzyme required in the synthesis of collagen.
Cerebrum
C ---OH
Vitamin C
Catabolism
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