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CLEP Biology Practice Test Questions

College Level Examination Program (CLEP) Biology Practice Test 

Exam Questions comes under: Molecular and cellular biology, Organismal biology and Population biology
CLEP Biology Practice Test
Biology Practice Test

No.of Questions: 115 questions Duration: 90 minutes

Choose the best answer from the five options given below. When you've finished answering as many of the questions as you can, scroll down to the bottom of the page and check your answers by clicking 'Score'. Percentage score will be displayed along with right answers
1. The greatest diversity of structure and of methods of locomotion is exhibited in the individuals of
a species
a class
a family
an order
a phylum
2. Which of the following elements is correctly linked to its function in a living organism?
Calcium :component of proteins
Magnesium: neuron action potential
Potassium: component of ATP
Carbon: component of lipids
Zinc :component of carbohydrates
3. All of the following statements concerning the light-dependent phase of photosynthesis are true EXCEPT:
An initial event is the excitation of electrons from chlorophyll by light energy
If not captured in the reaction, the excited electrons drop back to their initial energy levels.
The excited electrons are raised to a higher energy level.
If captured in the reaction, some of the energy of the excited electrons is used to split carbon dioxide into carbon and oxygen.
The reaction occurs in grana.
4. In a eukaryotic cell, glycolysis occurs in which of the following parts of the cell?
5. Of the following, which is an example of a mutualistic relationship?
The protozoan Trichonympha digesting wood in the gut of termites
Humans inadvertently providing food for cockroaches
The sporozoan Plasmodium reproducing in human blood cells and liberating toxins into the human body
Two species of Paramecium deriving food from a common laboratory culture
Rabbits being eaten by foxes
6. Thirst, loss of weight, and sugar in the urine result from the under secretion of a hormone by which of the following glands?
7. Viral DNA would be most likely to contain genes that code for
reverse transcriptase
restriction enzymes
DNA polymerase
viral-coat protein
restriction enzymes
8. Considering the role of mitochondria in cells, one would expect to find mitochondria most abundant in which of the following?
Callous cells of the skin
Mature red blood cells
Cells of the heart muscle
Epithelial cells of the cheek lining
Fat cells
9. The codon for a particular amino acid is 5'CAU3'. The DNA sequence that complements this codon is
10. All of the following statements about enzymes are true except:
A single enzyme molecule can be used over and over again.
Enzymes are denatured by high temperatures.
Enzymes can function only within living cells.
Some enzymes contain an essential nonprotein component.
Most enzymes are highly specific with regard to the reactions they catalyze.
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