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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 individual we recognize as an adult fern.
Centrioles
Alveoli
Mature sporophyte
Interphase
2. 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.
Enzymes catalyze reactions
Scurvy
Gregor Medel
Germ layers
3. Absorb a photon of light and is found in the grana of the chloroplast.
Chlorophyll has the ability to
Stomach secretions
Cellular Metabolism
Circadian rhythms
4. Subsets below the kingdom level
Phyla
Saprophytic
Imprinting
The theory of punctuated equilibrium
5. Most fossils of Hominids are from continents other than...
North America
Electron Transfer System (ETS)
Spiracles
An enzyme
6. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.
Angiosperms
Phototropism
Carbon
Meristem tissue
7. Secretes insulin to lower blood sugar and maintain equilibrium. A person eats three candy bars. Within minutes this endocrine gland affects blood-glucose homeostasis.
The pancreas
Non-protein
T Cells
Niche
8. 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
A gene is
Gnathostomata
DNA produces particular genetic traits through
9. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.
Porifera
Kingdom Animalia
Very specific
Interphase
10. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.
Gregor Medel
Interphase
Cerebrum
Biosphere
11. The sharp boundary of an ecosystem.
Porifera
Ecotone
The cell membrane
Bronchi
12. The most recent and present era. It includes the radiation of flowering plants - the angiosperms.
Cenozoic era
Circadian rhythms
C ---OH
Iisotonic state
13. All store energy within their chemical bonds.
Forebrain
Vitamin C
Cellulose - starch - lipid - and sugar molecules
The nucleus
14. Some enzymes contain a __________ component that is essential to their functions.
Non-protein
Cell walls
Chromosome
The pancreas
15. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.
Gametocide
Saprophytic
Cell walls
Trachea
16. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.
Silicon
Phosphorous gas
Genetic imprinting
Germ layers
17. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.
The pancreas
Characteristics of water valuable to living organisms
Catabolism
Nucleotides
18. What phylum are snakes in?
Cerebellum
Chordata
Phosphorous
The Cambrian Period
19. The large brain and upright posture of Homo Sapiens...
Cellular Respiration
The cell's 'powerhouses'
Precambrian period
Did not evolve together
20. Must be present for photosynthesis to occur - it is not used up in the process.
Chlorophyll
The cell membrane (plasma membrane)
Catabolism
A sex linked recessive disease
21. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.
Plasmodesmata
Kingdom Animalia
Adenine
A mutation
22. The process of forming eggs and sperm cells in the reproductive organs.
Gametogenesis
C ---OH
Catabolism
Epidermal tissue
23. Cleave strands of DNA segments at certain sites.
Cerebellum
Restriction enzymes
Gene Migration
Saprophytic
24. 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).
Scurvy
The pancreas
Silicon
Gymnosperms
25. 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
Interphase
The theory of punctuated equilibrium
Alveoli
26. Is the outermost of the three main layers of an embryo.
Vitamins
Ectoderm tissue
The pancreas
Cenozoic era
27. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).
Non-protein
The theory of punctuated equilibrium
Hydrolysis
Electron Transfer System (ETS)
28. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).
Endoderm
pH of Water
Phosphorous gas
Cell walls
29. Breaking down
Ectoderm
Blastula
Kingdom Fungi
Catabolism
30. Is the organelle where cellular reproductive processes occur.
Isotonic Conditions
Pharynx
The nucleus
Ectoderm
31. Are the organelles where cellular respiration occurs.
Genome
Phloem tissue
Spiracles
Mitochondria
32. Is an ion that binds to an enzyme making it more able to catalyze a reaction.
A prosthetic group
Chromosome
Aggregate fruit
Early hominids...
33. In DNA Thymine pairs with...
Precambrian period
The cuticle
Morula
Adenine
34. Plants and animals obtain usable nitrogen
A hydrogen bond
Gametogenesis
Through nitrogen fixing bacteria and lighting
Tundra
35. Contains multicellular photosynthetic eukaryotic organisms including gymnosperms and angiosperms.
The Cambrian Period
Hypothalamus
Kingdom Plantae
Color blindness
36. Is a substance that changes the speed of a reaction without being affected itself.
A prosthetic group
Silicon
A catalyst
parasitic
37. Channels is cell membranes that carry water between cells.
Protista
Plasmodesmata
Attraction of atoms of different polarity
About five million years ago...
38. 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
Free ribosomes
Anabolsim
The theory of punctuated equilibrium
39. Is the sugar that lactase acts upon.
Parenchyma tissue
Kingdom Plantae
Lactose
Endocytic vesicles
40. 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
Genetic maintenance
Gametogenesis
R-selection
41. Are organic cofactors or coenzymes that are required by some enzymatic reactions.
Biogeochemical cycles
Vitamins
Stomach secretions
The Cell Theory
42. The vocal cords are found in the larynx.
DNA produces particular genetic traits through
Phosphorous
Larynx
A gene is
43. Respiratory organs within insects
Spiracles
Morula
As energy is transferred through trophic levels
Pharynx
44. Decomposition of living matter for consumption.
A species role in the food chain is part of its
parasitic
The community
Characteristics of water valuable to living organisms
45. Is a packet of digestive enzymes that destroy cellular wastes.
A gene is
Phototropism
Desert
A lysosome
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.
The theory of punctuated equilibrium
Phloem tissue
Chlorophyll
Pi
47. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.
Meristem tissue
Forebrain
Fixed Action Pattern (FAP)
Bronchi
48. Some energy is lost as heat and becomes unusable.
Gene Migration
Genetic screening
Niche
As energy is transferred through trophic levels
49. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.
An enzyme
Larynx
Ecological niches open up
Natality
50. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t
The pituitary gland
Imprinting
Angiosperms
About five million years ago...