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Test your basic knowledge |
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 special protein that acts as a catalyst for organic reactions.
An enzyme
Lactose
Desert
Gametogenesis
2. Carbon - Hydrogen - Oxygen - and Nitrogen
Desert
Fixed Action Pattern (FAP)
Common elements found in proteins
Phototropism
3. Is found in the root cap and is responsible for quick growth in the roots.
Ecotone
Meristem tissue
The key limiting factor on cell size
Desert
4. Contain one celled eukaryotes such as algae and protozoa.
Meristem tissue
Plasmodesmata
Kingdom Protista
A hydrogen bond
5. 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
Endocytic vesicles
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
Filtered by the liver
A species role in the food chain is part of its
6. Is a phylum that contains sponges.
Angiosperms
Restriction enzymes
Arthropoda
Porifera
7. Are the organelles where cellular respiration occurs.
The cell membrane
Mitochondria
Scurvy
Bronchi
8. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.
Ecological niches open up
parasitic
Habitat
The community
9. Is the process that releases energy for use by the cell.
Phototropism
Cellular Respiration
Phyla
The Nitrogen cycle
10. Subsets below the kingdom level
Hemophilia
Gametogenesis
A prosthetic group
Phyla
11. The phylum of insects (bees).
Arthropoda
Spiracles
Chimpanzees
DNA produces particular genetic traits through
12. The process of forming eggs and sperm cells in the reproductive organs.
Gametogenesis
As energy is transferred through trophic levels
Adenine
Plasmodesmata
13. Niche
Carbon
Adenine
A species role in the food chain is part of its
Kingdom Fungi
14. Is the outermost layer of cells of the stem.
The cell membrane
pH of Water
Population
Epidermal tissue
15. The systematic search for individuals with a specific genotype in a delineated population.
Cuticle
Saprophytic
Tundra
Genetic screening
16. Synthesis
Circadian rhythms
Mitochondria
Anabolism
Characteristics of water valuable to living organisms
17. 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.
Recycled environmental factors
Annelida
Photolysis is a reaction of photosynthesis where
B Cells
18. 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).
Phloem tissue
A prosthetic group
Gametogenesis
Sudden appearance and disappearance of fossil species
19. 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
Phototropism
The Hardy-Weinberg Law of Equilibrium
parasitic
Genetic imprinting
20. Proposes that those individuals within a population that are most adapted to the environment are also the most likely individuals to produce viable offspring.
C ---OH
Differential reproduction
Annelida
Mature sporophyte
21. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.
Natality
T Cells
Free ribosomes
Population
22. The size of a cell is limited by the ratio of its surface area to volume.
Plasmodesmata
An inhibitor
Ecological niches open up
The key limiting factor on cell size
23. 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.
Habituation
Larynx
The cell membrane
Spiracles
24. 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
The Nitrogen cycle
The adrenal glands
DNA replication
25. 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.
Larynx
Cellular Metabolism
Will increase the reaction rate
Lysosomes
26. Is the number of organisms that can be supported within a particular ecosystem.
Genetic screening
Carrying capacity
Blastula
North America
27. Has extreme hot or cold temperatures - with very low precipitation - sandy or rocky terrain - sparse vegetation (mainly succulents) - small animals - rodents - and reptiles.
Nucleotides
Desert
Imprinting
Cuticle
28. Respiratory organs within insects
Phyla
Spiracles
Carrying capacity
Iisotonic state
29. Super-class of vertebrae including organisms with no jaws.
Recycled environmental factors
Desert
Aganatha
Ecological niches open up
30. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.
Morula
Biogeochemical cycles
Lysis
Paleozoic era
31. Contains many genes and is a structure comprised of linear DNA and associated proteins.
Chromosome
Cell walls
Kingdom Animalia
Non-protein
32. 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.
Chimpanzees
A mutation
Habituation
A hydrogen bond
33. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.
A hydrogen bond
The evolution leading to Homo Sapiens...
Endocytic vesicles
The nucleus
34. Algae and Protozoa belong to the kingdom...
Electron Transfer System (ETS)
Protista
Carrying capacity
Catabolism
35. High temperatures
Destroy most enzymes
The evolution leading to Homo Sapiens...
Niche
Silicon
36. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.
Genome
Recycled environmental factors
Chimpanzees
Ectoderm tissue
37. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).
Epidermal tissue
Biogeochemical cycles
So it can be used over and over again.
pH of Water
38. Refers to the birthrate of a population.
Chimpanzees
Natality
So it can be used over and over again.
A species role in the food chain is part of its
39. Is a substance that changes the speed of a reaction without being affected itself.
A catalyst
Vascular bundles
Attraction of atoms of different polarity
Prosthetic groups
40. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.
A catalyst
Phosphorous gas
As energy is transferred through trophic levels
The primary role of DNA in the cell
41. (of some plants or fungi) feeding on dead or decaying organic matter
Stem tissues
Saprophytic
Aves
Genetic maintenance
42. Occurs when an individual learns not to respond to a particular stimulus - for instance when a stimulus is repeated many times without consequence.
Stomach secretions
Meristem tissue
Prosthetic groups
Habituation
43. 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
North America
Annelida
Genetic imprinting
The Nitrogen cycle
44. Covers and protects the leaf.
Cuticle
Vascular bundles
Cytosine
Phototropism
45. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.
Pharynx
Larynx
Cell walls
Allopatric speciation
46. Controls hunger and thirst
A catalyst
Hypothalamus
Cell walls
Biogeochemical cycles
47. May be ions or non-protein molecules - they are similar to cofactors - but differ in that they are tightly attached by covalent bonds to the enzyme - rather than being separate atoms or molecules.
Prosthetic groups
Pharynx
Endoderm
An enzyme
48. Is found on the stem between nodes.
DNA replication
Natality
Internodal tissue
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
49. 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
Cnidaria
Lysosomes
The habitat of an organism includes
50. The transfer of electrons.
T Cells
Ionic bonds involve
The adrenal glands
Ecotone
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