BIOL 103 FINAL EXAMINATION
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BIOL 103 Final Examination
Which statement about evolution is FALSE?
Question 1 option:
According to evolutionary theory, you are related to a bacterium, to a yeast cell, to a snake, and to a whale. In fact, you are related to every species now alive on Earth, and to fossil species like dinosaurs as well.
Natural selection acts on genetic differences within a population to cause evolution. Individuals do not evolve.
Natural selection is about slow but steady progress. Through it, populations constantly get better-adapted. When this process is completed for all populations, evolution will come to a stop.
Evolution occurs constantly, without end; there is no endpoint in evolution.
Negatively charged particles are found where in an atom?
Question 2 options:
In the nucleus
In a single layer outside the nucleus
In multiple layers outside the nucleus
Both inside and outside the nucleus
You have a solution that has a pH of 8 and need it to be pH 5. What do you do?
Question 3 options:
Add a base
Add an acid
Add a buffer
What characteristic of carbon makes it a good backbone for creating diverse and durable molecules?
Question 4 options:
Carbon is a large atom.
Carbon forms four covalent bonds.
Carbon forms hydrogen bonds.
All of the above
Which of the following structures can be found together in eukaryotic cells?
Question 5 options:
cytoplasm and ribosomes
cytoplasm and plasma membrane
DNA and ribosomes
ribosomes and endoplasmic reticulum
Which of the following reactions or pathways is catabolic?
Question 6 options:
Breaking down ATP into ADP and phosphate.
Making starch from many glucose molecules.
Photosynthesis: which builds glucose from carbon dioxide using energy from light.
Making ATP from ADP and Phosphate.
In a metabolic pathway, a typical control mechanism is to have: ________
Question 7 options:
the final product have no effect on the enzyme responsible for its own production.
the final product inhibit an early step.
a reactant inhibit a late step.
a lack of reactant stimulate the pathway.
Mitosis results in ______ cells and meiosis results in _______ cells.
Question 8 options:
In beans yellow (Y) is dominant to green (y) and smooth (S) is dominant to wrinkled (s). What are the possible genotypes for the offspring of the following cross: YySS and YYSs.
Question 9 options:
YYSS, YYss, yySS, yyss
YS, yS, YS, yS
Yy, SS, YY, Ss
YYSS, YySS, YYSs, YySs
Red rose color is incompletely dominant over white rose color. If a red rose is crossed with a pink rose, what percentage of the offspring will be pink?
Question 10 options:
One of the products of cellular respiration is ________.
Question 11 options:
An ecologist is studying all the animals, plants, fungi and bacteria, as well as the interaction among them, in a forest? He is studying the _________ in the forest.
Question 12 options:
The temperature optimum for an enzyme is 37C. What will most likely happen if you increase the temperature from 37C to 50C?
Question 13 options:
The enzyme activity will not be affected
The enzyme activity will increase
The enzyme activity will decrease
The pH will increase
When celery is placed in a glass of pure water the solution inside its cells is _____ compared to the water.
Question 14 options:
An ecosystem can be characterized as:
Question 15 options:
populations + community.
all species, population, and community interactions for organisms in a given area.
the abiotic components of the environment.
all of the biological interactions, plus interactions with the abiotic environment, in a given area.
Question 16 options:
prevent reactions from occurring
are found only in prokaryotes
all of those answers are correct
This term refers to the maintenance of internal stability in a creature:
Question 17 options:
Steroids and waxes are
Question 18 options:
Active transport DOES NOT require ATP
Question 19 options:
In October of 2003, a raging wildfire swept through the mountain ecosystems in Southern California, burning everything in its path to the ground and driving away all of the animals. In order for the mountain ecosystem to re-establish itself, which member of the food web has to return first?
Question 20 options:
Carbohydrates are not
Question 21 options:
stored potential energy
made mostly of nitrogen and carbon.
broken down by cellular respiration.
made by producers.
A primary consumer would eat:
Question 22 options:
Question 23 options:
One type of active transport
The movement of water across the cell membrane
The movement of molecules from an area of low concentration to an area of high concentration
The movement of molecules from an area of high concentration to an area of low concentration
Any individual organism has the potential to adapt to its environment, if it is given enough time and possesses a mechanism to generate variation.
Question 24 options:
Once an adaptation appears, it remains in all the descendants unless the species becomes extinct
Question 25 options:
When a founder population has a small gene pool, evolutionary change is more likely to be rapid than if the founder population has a large gene pool.
Question 26 options:
When speciation occurs, the result is a huge dramatic change in the new species.
Question 27 options:
When two groups are reproductively isolated, it can be reliably predicted that speciation will follow very soon.
Question 28 options:
Codons are locate on
Question 29 options:
all of those
Fossil evidence suggests that human ancestors arose one time in Africa.
Question 30 options:
Sunlight influences vitamin D production is humans.
Question 31 options:
Mitochondria and chloroplasts of eukaryotic cells are very similar to prokaryotes
Question 32 options:
Organisms that live in habitats with high levels of competition are more likely to produce defensive chemicals than those that live with little competition.
Question 33 options:
The human population may continue to increase even though it surpasses carrying capacity.
Question 34 options:
A woman’s ovum will complete Meiosis II only, if fertilization has occurred.
Question 35 options:
One human disease is caused by a change in the DNA from GAA to GTA. This change is an example of:
Question 36 options:
The main function of a ribosome is to ____________________.
Question 37 options:
extract energy from glucose
store food in the form of fat
The effectiveness of a medication containing growth hormone is tested on a group of young male rabbits 3 weeks of age. The best control group would be:
Question 38 options:
any group of rabbits
a group of young male rabbits 3 weeks of age, not given the medication
a group of young female rabbits 3 weeks of age, not given the medication
no control is required; just measure whether the rabbits grew
The number of _______________ in the outer shell of an atom determines the type of chemical bonds an atom can make.
Question 39 options:
You find a cell of a type you have never seen before. The cell has both a nucleus and a cell wall. Therefore, you conclude, it must be a _______________ cell.
Question 40 options: