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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. Super-class of vertebrae including organisms with jaws.
A prosthetic group
Gnathostomata
Porifera
Silicon
2. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.
Kingdom Protista
Meristem tissue
Gymnosperms
Color blindness
3. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.
Spiracles
Will increase the reaction rate
An enzyme
Habitat
4. The class composed of birds.
Enzymes catalyze reactions
Lymphocytes
Midbrain
Aves
5. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.
Aves
Scurvy
Carbon
Phyla
6. Produces the most ATP molecules - yielding 34 ATPs per glucose molecule.
Free ribosomes
Niche
An inhibitor
Electron Transfer System (ETS)
7. Has loosely packed cells that allow for gas and moisture exchange.
Desert
Parenchyma tissue
Carbon
Kingdom Plantae
8. 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.
A hydrogen bond
Prosthetic groups
Non-protein
Phyla
9. Is the outermost of the three main layers of an embryo.
Habituation
Chimpanzees
Ectoderm tissue
Share electrons
10. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.
Cerebrum
Mitochondria
T Cells
The adrenal glands
11. Contains many genes and is a structure comprised of linear DNA and associated proteins.
Xylem tissue
The cell membrane
Chromosome
Destroy most enzymes
12. Is the number of organisms that can be supported within a particular ecosystem.
Early hominids...
Carrying capacity
Sudden appearance and disappearance of fossil species
The synthesis of ATP molecules to store energy is an example of
13. 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
Vitamins
Will increase the reaction rate
Isotonic Conditions
Chlorophyll has the ability to
14. Covers and protects the leaf.
Cytosine
Genetic screening
Adenine
Cuticle
15. Is the waxy protective outer coating of leaves.
Ionic bonds involve
Phloem tissue
Gregor Medel
The cuticle
16. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.
Phototropism
Photolysis is a reaction of photosynthesis where
The Cambrian Period
Epidermal tissue
17. Is a social behavior of an organism that is beneficial to the group at the individual's expense.
Allopatric speciation
Altruism
Protista
Midbrain
18. Controls hunger and thirst
Iisotonic state
Hypothalamus
Free ribosomes
The community
19. Niche
As energy is transferred through trophic levels
Vascular bundles make up the
A species role in the food chain is part of its
Differential reproduction
20. Must be present for photosynthesis to occur - it is not used up in the process.
Sudden appearance and disappearance of fossil species
Centrioles
Chlorophyll
Blastula
21. Is the sugar that lactase acts upon.
Cytosine
Simple fruits
Lactose
A lysosome
22. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.
Allopatric speciation
Photolysis is a reaction of photosynthesis where
The salivary gland
Germ layers
23. 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.
Annelida
Stomach secretions
A sex linked recessive disease
Free ribosomes
24. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.
A species role in the food chain is part of its
Meristem tissue
Bronchi
Ionic bonds involve
25. Are organic cofactors or coenzymes that are required by some enzymatic reactions.
Alveoli
Early hominids...
Ectoderm tissue
Vitamins
26. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting
Circadian rhythms
Through nitrogen fixing bacteria and lighting
Chimpanzees
Hemophilia
27. The pituitary gland.
Protista
Habitat
Cenozoic era
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
28. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.
The community
Saprophytic
Destroy most enzymes
Ectoderm tissue
29. The destruction of gametes - (sex cells such as sperm and eggs).
Cellular Respiration
Cytosine
Gametocide
Ectoderm
30. 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.
Iisotonic state
Saprophytic
Internodal tissue
Filtered by the liver
31. Is a phylum that contains jellyfish - hydra - etc.
Imprinting
The adrenal glands
The primary role of DNA in the cell
Cnidaria
32. Includes all living and nonliving components of the Earth to support living things.
The Nitrogen cycle
The biosphere
Genome
The Cambrian Period
33. Is the outermost layer of cells of the stem.
Pi
Catabolism
Kingdom Animalia
Epidermal tissue
34. Are cells involved in immunity and are produced in bone marrow as stem cells.
parasitic
Lymphocytes
Population
R-selection
35. 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.
Bronchi
Sudden appearance and disappearance of fossil species
Will increase the reaction rate
Spiracles
36. Are easily converted to ATP - but the main energy products of the Krebs cycle liberate electrons then used in the electron transfer reactions.
North America
Gymnosperms
The products of the Krebs cycle
The pituitary gland
37. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.
Alveoli
B Cells
Mesoderm
Tundra
38. Is a molecule that stores information for protein synthesis and genetic coding.
Electron Transfer System (ETS)
Ribonucleic acid
The products of the Krebs cycle
DNA replication
39. Some energy is lost as heat and becomes unusable.
The adrenal glands
As energy is transferred through trophic levels
Pi
Phototropism
40. Has extreme hot or cold temperatures - with very low precipitation - sandy or rocky terrain - sparse vegetation (mainly succulents) - small animals - rodents - and reptiles.
Desert
Characteristics of water valuable to living organisms
A mutation
A hydrogen bond
41. Are where the sugars synthesized by photosynthesis travel through to various parts of the plant.
Pi
Vascular bundles
Meristem tissue
Prothallus
42. Is a substance that changes the speed of a reaction without being affected itself.
Fixed Action Pattern (FAP)
Very specific
A catalyst
Ectoderm
43. Process in which elements - chemical compounds - and other forms of matter are passed from one organism to another and from one part of the biosphere to another.
Circadian rhythms
Scurvy
Biogeochemical cycles
Hemophilia
44. When the water concentration inside and outside the cell is equal - It is said to be in an...
Iisotonic state
Centrioles
Cerebrum
Chromosome
45. Contain one celled eukaryotes such as algae and protozoa.
The primary role of DNA in the cell
Kingdom Protista
The key limiting factor on cell size
Cellular Metabolism
46. Inorganic phosphate
Isotonic Conditions
Pi
The salivary gland
The habitat of an organism includes
47. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.
The Nitrogen cycle
Natality
Cerebrum
Habitat
48. All store energy within their chemical bonds.
Ectoderm tissue
Habitat
Chlorophyll has the ability to
Cellulose - starch - lipid - and sugar molecules
49. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.
Morula
A hydrogen bond
Attraction of atoms of different polarity
Trachea
50. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).
Imprinting
Pi
Early hominids...
Biosphere