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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. Fossilized burrows from multicellular organisms begin to appear in the geological record approximately 700 million years ago during the Precambrian period. These multicellular animals had only soft parts and could not be fossilized.
Through nitrogen fixing bacteria and lighting
Kingdom Protista
Chlorophyll has the ability to
Precambrian period
2. The phyla of sponges.
Habituation
Successful reproduction
Porifera
Filtered by the liver
3. 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
parasitic
Recycled environmental factors
Lysosomes
4. Subsets below the kingdom level
Phyla
DNA produces particular genetic traits through
Through nitrogen fixing bacteria and lighting
Biosphere
5. Is the sugar that lactase acts upon.
Pi
Stomach secretions
Lactose
Pharynx
6. Are the organelles where cellular respiration occurs.
Lysis
pH of Water
Mitochondria
Genetic maintenance
7. 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.
A mutation
A hydrogen bond
Chimpanzees
Blastula
8. Are easily converted to ATP - but the main energy products of the Krebs cycle liberate electrons then used in the electron transfer reactions.
Through nitrogen fixing bacteria and lighting
Annelida
Phototropism
The products of the Krebs cycle
9. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.
Genetic imprinting
The pancreas
Kingdom Protista
Share electrons
10. Layer that will become the skin - some endocrine glands - and the nervous system.
Parenchyma tissue
Tundra
Gregor Medel
Ectoderm
11. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).
The theory of punctuated equilibrium
Mesozoic era
Biosphere
The Cell Theory
12. Is a substance that changes the speed of a reaction without being affected itself.
Phloem tissue
The primary role of DNA in the cell
Midbrain
A catalyst
13. Refers to the birthrate of a population.
An inhibitor
An enzyme
Mitochondria
Natality
14. Develops from the morula as a thin layer of cells surrounding an internal cavity.
Chlorophyll has the ability to
Blastula
Chromosome
Precambrian period
15. 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).
Non-protein
Hydrolysis
Vitamins
Scurvy
16. Is a special protein that acts as a catalyst for organic reactions.
Cell walls
Xylem tissue
An enzyme
Successful reproduction
17. 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.
Altruism
Balance
Cuticle
Stomach secretions
18. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.
Lymphocytes
The cell membrane (plasma membrane)
Chimpanzees
Aganatha
19. 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.
The Cambrian Period
North America
Tundra
Lysosomes
20. Are organic cofactors or coenzymes that are required by some enzymatic reactions.
Lysis
Ectoderm
Stem tissues
Vitamins
21. It secretes saliva which enters the digestive tract and aids the digestive process.
Porifera
The salivary gland
A species role in the food chain is part of its
An enzyme
22. 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
Precambrian period
Bronchi
Very specific
Will increase the reaction rate
23. The sharp boundary of an ecosystem.
Kingdom Fungi
Cenozoic era
Ecotone
Protista
24. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).
The nucleus
Early hominids...
Desert
Multiple fruit
25. Is a phylum that contains jellyfish - hydra - etc.
Cnidaria
Hemophilia
The theory of punctuated equilibrium
Circadian rhythms
26. The phylum of insects (bees).
Biosphere
Arthropoda
Phototropism
Kingdom Protista
27. Is the outermost of the three main layers of an embryo.
Ectoderm tissue
The pancreas
Bryophytes
Lymphocytes
28. Fruits that develop from a single ripened ovary (apple - olive - acorn - cucumber).
Mature sporophyte
Simple fruits
The Hardy-Weinberg Law of Equilibrium
So it can be used over and over again.
29. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.
pH of Water
Cell walls
Ecological niches open up
The synthesis of ATP molecules to store energy is an example of
30. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.
Tundra
The cell membrane (plasma membrane)
Altruism
Cerebrum
31. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.
Morula
Carbon
A prosthetic group
Gametogenesis
32. Is a social behavior of an organism that is beneficial to the group at the individual's expense.
Adenine
The cuticle
Larynx
Altruism
33. Contains many genes and is a structure comprised of linear DNA and associated proteins.
Meristem tissue
Tundra
Lymphocytes
Chromosome
34. 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
Cellulose - starch - lipid - and sugar molecules
About five million years ago...
Hemophilia
35. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.
Meristem tissue
Aganatha
A sex linked recessive disease
The evolution leading to Homo Sapiens...
36. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.
Meristem tissue
The habitat of an organism includes
Balance
Habitat
37. Allows for the genetic code to be preserved in future generations of cells.
Plasmodesmata
Stomach secretions
DNA replication
An enzyme
38. Breaking down
Lysosomes
A sex linked recessive disease
parasitic
Catabolism
39. Contains optic lobes - controls sight.
pathogenic
The synthesis of ATP molecules to store energy is an example of
The theory of punctuated equilibrium
Midbrain
40. Energy transformations that occur as chemicals are broken down or synthesized within the cell.
Desert
Angiosperms
Phyla
Cellular Metabolism
41. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.
Vascular bundles make up the
Vitamins
Angiosperms
Annelida
42. 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.
Prosthetic groups
pathogenic
The salivary gland
Centrioles
43. Is a molecule that stores information for protein synthesis and genetic coding.
Imprinting
Phototropism
Ribonucleic acid
Meristem tissue
44. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).
Common elements found in proteins
Allopatric speciation
Adenine
pH of Water
45. Are cells involved in immunity and are produced in bone marrow as stem cells.
The hormone aldosterone
The Hardy-Weinberg Law of Equilibrium
Lymphocytes
The Cell Theory
46. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.
Through nitrogen fixing bacteria and lighting
Morula
Chordata
Filtered by the liver
47. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
Carrying capacity
North America
Silicon
48. An orienting response to light.
Characteristics of water valuable to living organisms
Phototropism
A gene is
The adrenal glands
49. Is the process that releases energy for use by the cell.
Chordata
Cellular Respiration
The pituitary gland
Mesoderm
50. Some enzymes contain a __________ component that is essential to their functions.
Aves
Habituation
Non-protein
Lactose