Welcome to your Biology 2006
1.
Which of the following do viruses share with cells?
2.
Which one of the following cellular forms did Robert Hooke observe under his crude microscope?
3.
In the case of enzymatic chemical reactions, what do you call the substance that is acted up on by an enzyme?
4.
Choose the organisms that belong to the eukaryotes?
5.
While conducting research, which of the following should a biologist do first?
6.
Which of the following structures is NOT present in animal cells?
7.
An experimental animal stopped responding to a stimulus that has been repeated so many times .What type of learned behavior is this ?
8.
Behavior that is repeated on a daily basis is referred to as:
9.
Which molecule in the cell is the constituent of the gene?
10.
Which is the branch of biology that studies abut the origin and gradual changes of living things?
11.
What is the general term for the part of the protoplasms that lies outside the nucleus?
12.
How many net ATP molecule are generated through anaerobic respiration , when a single glucose molecule is change to pyruvate in the human body?
13.
Which of the following groups of bacteria consists of rod shaped cells?
14.
How many carbon and oxygen tomes are there in a molecule of maltose?
15.
On which of the following organelles of the eukaryotic cell does protein synthesis take place?
16.
Which of the following parts of plant roots is harboring nitrogen fixing bacteria
17.
Which of the following is true about protozoa
18.
Which of the following is a distinguishing feature of amino acids that is NOT found in carbohydrates?
19.
Which of the following statement is true about matter and energy in the ecosystem?
20.
Which one of the following molecule in living things is not an organic molecule?
21.
At which stage is most of the ATP generated in aerobic respiration?
22.
Which of the following is the common characteristic of all enzymes?
23.
In a cross between round green pea of RRyy genotype wrinkled yellow pea of rrYY genotype, what is the expected genotype of the F1?
24.
Which of the following cellular structures is possessed by all cells
25.
During the krebs cycle which of the following molecule temporarily stores most of the energy released from food molecule
26.
Which of the following carbohydrate has structural function?
27.
Which of the following forms of nitrogen are readily utilization by green plants?
28.
In some crosses of maize, the progeny produces better yield than the parents. What is this phenomenon known as?
29.
Which of the following techniques is used to separate DNA fragments according to their size on gel?
30.
Which of the following group of animals have males with ZZ and females with ZW sex chromosome constitution?
31.
The molecule of which pigment is located at the reaction center of a photosystem?
32.
According to Lamarck's theory of evolution what is the mechanism by which evolving organisms acquire new structures?
33.
In which of the activities of the honey bee colony are worker bees involved?
34.
In which one of the following ways the Tundra biome differs from desert biome?
35.
Which one of the following is the mechanism by which tow genes located on the same chromosome are separated?
36.
If present in the fermentation system which one of the following would negatively affect alcohol production by yeasts?
37.
Which of the following can be taken as case for evidence of evolution from the filed of plant and animal breeding?
38.
Which of the following mechanism moves digested amino acids and glucose across the plasma membrane of the cell lining the wall of the small intestine?
39.
Where exactly in the cell dose the Krebs cycle take place?
40.
What is the ultimate source of renege for all organism living on the earth
41.
Which of the following substance is NOT necessary for photosyntheseis to take place?
42.
Which group of organic compound includes the enzymes?
43.
Into which of the following organic compound can lipase maltase and sucrase be grouped?
44.
Choose the characteristics that viruses share with living things.
45.
Which one of the following eukaryotic cell organelles was a free living cell before eukaryotic cells evolved?
46.
If radioactive substance that weighs one kilogram has a half-life of 100 years what would be the percentage of the substance left after 300 years?
47.
Which of the following is more true about the male of the honey bee?
48.
Which of the following PH values represents the strongest base?
49.
In Ethiopia, which one of the following vertebrate groups has the largest number of genera?
50.
Which of the following is an accurate representation of the relationships between the terms metabolism anabolism and catabolism?
51.
Which do you call structures that have the have the same evolutionary origin but now are different in structure or have different functions?
52.
Which term describes the process by which water is lost by evaporating through the stomata of leaves ?
53.
Which of the following is true about saturated fatty acids?
54.
For a biological detergent to effectively remove oily and greasy dirt, which of the following enzymes should it contain?
55.
In which kingdom of life is it most likely to finde many examples of organisms that can undergo metamorphosis?
56.
During protein synthesis where in the cell does transcription take place?
57.
What is a perfect flower?
58.
Which molecules carry the instruction for protein synthesis?
59.
Which region of the human digestive tract contains enzymes that perform well at low PH?
60.
Which of the following resources is needed by an ecosystem from outside in order to sustain itself
61.
Which of the following is true about the substance represented by the chemical formula C2H5NO2?
63.
Which one of the following characteristic is UNNECESSARY for an object to be considered a living thing?
64.
Which filed studies the way in which individual traits of organisms are transmitted from one generation to the next?
65.
In which of the following ways is the carbon dioxide of the atmosphere fixed in to the Carbone found in organic molecules?
66.
Which of the following is NOT a term used to describe organisms that have had foreign genes added to them?
67.
Which of the following is prevented from taking place if populations are separated by a geographic barrier?
68.
In protein synthesis, what is produced during transcription
69.
If a cell fails to clear its cellular debris which one of its organelle is most likely NOT functioning?
70.
Which of the following applies to the tropical rainforest?
71.
Which stage in the life cycle of HIV is inhibited by the antiretroviral drug known as integrase � inhibitor?
72.
Which of the following groups of plants carry out light dependent and light independent reaction of photosynthesis in separate cells?
73.
Among the following identify the organelle in which nucleic acid is NOT found ?
74.
Which of the following can create strong inter- specific competition if share by two or more species?
75.
The half-life of carbon-14 is about 5730 years. If a fossil is 17200 years old, about what percent of its original carbon -14 is still present in the fossil?
76.
Which of the following pairs of individuals have identical DNA fingerprints?
77.
Among the following which one has little or no contribution to the loss of biodiversity?
78.
Suppose sites A,B,C and D have Simpson's Index of Diversity (d) values of 20,8,16,and 3, respectively, which site is dominated by one or just a few species?
79.
Which of the following types of chromosome mutations gives rise to an extra chromosome?
80.
Suppose a hypothetical cube- shaped cell has sides of 10 micrometers, what is the surface area to volume ratio of this cell?
81.
which of the following pairs are analogous structures ?
82.
Which of the the following mating produces children all having the same ABO blood phenotypes
83.
Which of the following is the largest ecological unit?
84.
Among the following fossil hominid species which one is the oldest of all?
85.
During aerobic respiration what is the route through which protons return from the mitochondrial inter-membrane space back to its matrix?
86.
From which of the processes of cellular respiration is the majority of the ATP generated?
87.
Choose the one that represent a chemical formula of an organic compound?
88.
In which of the following solutions does an animal cell undergo hemolysis?
89.
On which of the following does the rate of algal photosynthesis in a lake depend?
90.
What does the absence of chloroplast in a unicellular organism indicate?
91.
Which of the following did the early heterotrophs do that probably assisted the origin of autotrophs?
92.
If DNA contain 10% thymine, what is the percentage of cytosine in the DNA?
93.
Which of the following conclusions can be drawn the structural similarities observed between the flippers of whales and the arms of humans?
94.
Which of the following will happen if a plant cell is kept in a solution that is stronger than its protoplasms?
95.
Which of the following is produced when a lipid molecule is hydrolyzed?
96.
What is the ecological succession in which plant communities establish after an area has been completely demolished by fire?
97.
What is the difference between HIV and AIDS?
98.
From which organism is the first antibiotic used in medicine produced ?
99.
Biotechnology can be applied in environmental remediation . To which of the major application areas of biotechnology is this most related?
100.
Suppose in an experiment conducted to test a new drug, 20 people were given the drug and 20 people a placebo. What is the control of the experiment?
