While you have taken many standardized tests and know to blacken completely the ovals on the answer sheets and to erase completely any errors, the instructions for the SAT II exam in Biology differs from the directions for other standardized tests you have taken. You need to indicate on the answer key whether you are taking the SAT II Biology with Ecological Emphasis (Biology-E) or Molecular Emphasis (Biology-M).
The instructions on the answer sheet will tell you to fill out the top portion of the answer sheet exactly as shown.
- Print BIOLOGY-E or BIOLOGY-M on the line to the right under the words Subject Test (print).
- In the shaded box labeled Test Code fill in four ovals:
- For BIOLOGY-E
- —Fill in oval 1 in the row labeled V.
- —Fill in oval 9 in the row labeled W.
- —Fill in oval 4 in the row labeled X.
For BIOLOGY-M
—Fill in oval 1 in the row labeled V.
—Fill in oval 9 in the row labeled W.
—Fill in oval 4 in the row labeled X.
When everyone has completed filling in this portion of the answer sheet, the supervisor will tell you to turn the page and begin. The answer sheet has 100 numbered ovals on the sheet, but there are only 90 (or 95) multiple-choice questions in the test, so be sure to use only ovals 1 to 90 (or 95) to record your answers.
Directions: Each of the questions or statements below is accompanied by five choices. For each question, select the best of the answer choices given.
Questions 1–4 refer to the following information.
A student studying respiration decided to test the following hypothesis: “If yeasts use glucose for energy, then the more glucose I add to their medium, the more the population will grow.”
To test this hypothesis, she filled four tubes with 5 ml of minimal growth media and added no glucose to the first, 5 ml to the second, 10 ml to the third, and 20 ml to the fourth. After 1 day she recorded the following data:
tube # 1 |
tube # 2 |
tube # 3 |
tube # 4 |
20 yeasts/mm3 |
200 yeasts/mm3 |
60 yeasts/mm3 |
0 yeasts/mm3 |
pH = 7.0 |
pH = 6.5 |
pH = 6.8 |
pH = 7.2 |
- The data suggest which of the following?
- Yeasts need glucose to grow.
- The more glucose given to yeasts, the better they will grow.
- pH can be used to measure the rate of growth.
- Yeasts give off hydrochloric acid when they grow.
- Reasons why the last tube didn’t grow any yeast could be
- that the yeasts lost water through osmosis.
- that the mitochondria of the yeasts were overwhelmed.
- that fermentation killed the yeasts.
- that the high pH was bad for the yeasts.
- If she wanted to graph the data, she should put
- # of yeast on the X or independent axis and pH on the Y or dependent axis.
- pH on the Y axis and time on the X
- # of yeasts on the Y axis and amount of glucose on the X
- # of yeasts on the Y axis and pH on the X
- (C) on one graph and (D) on another.
- The student added no glucose to the first tube because
- she was testing the minimal media.
- she was using it for a control.
- she had to prove that yeasts need glucose to survive.
none of the above
The hydrogen bonds in water are a result of
- the hydrogen of one molecule bonding to the hydrogen of another molecule.
- the oxygen of one molecule bonding to one of the hydrogens of that molecule.
- the hydrogen of a water molecule bonding to the nitrogen of another.
- the hydrogen of one molecule bonding to the oxygen of another molecule.
- Which of the following describe the physical dimensions for DNA?
- The nitrogen bases are 0.34 nm from one another, moving 58 to 38.
- The diameter of the strand is 20 nm.
III. The two strands run antiparallel.
Questions 7–8 refer to the following table.
- Which of the following DNA sequences would code for the polypeptide glutamine, lysine, histidine?
- If a DNA strand contained the sequence ATG AGT CGT, what one base substitution could keep the translation from being completed?
- A consensus sequence is associated with
__________, while a signal sequence is part of __________.
- spliceosomes, translation
- Plants produce energy in their
- cytosol.
III. chloroplasts.
- I, II, and III
- Which cell structure is represented in the drawing above?
- One would expect to find steroid hormone receptors in the
Questions 13–14 refer to the following diagram.
- All the arrows are associated with the process of
- Letter X most likely represents
- The enzyme that assimilates carbon dioxide into the Calvin cycle is known as
- Which element acts as a hydrogen acceptor during aerobic respiration?
Questions 17–19 refer to the following information.
- Which molecule is the primary energy source for animals?
- Which molecule is an amino acid?
- What molecule is a product of the Kreb’s cycle?
- The separation of plant pigments using paper chromatography is based on
- the non-polarity of the solvents and pigments.
- the polarity of the paper.
- the polarity of the pigments.
- The enzyme that charges tRNA molecules has as it substrate(s)
- an amino acid.
III. tRNA.
- snRNA.
Questions 22–23 refer to the following diagram.
- The diagram above illustrates __________
and shows that most energy is lost as
_________.
- the first law of thermodynamics, fast as it arrives
- the second law of thermodynamics, heat
- the second law of thermodynamics, fast as it arrives
- the first law of thermodynamics, decomposition
- the second law of thermodynamics, decomposition
- The amount of energy bound up in the second consumer’s level is approximately
__________ of the radiant energy falling on the system.
- Organisms are placed in different trophic levels according to how they obtain their energy. Another name for primary con-sumer is
- Which letter represents the process of transpiration?
- Over time, according to the theories of succession,
- the lake will get deeper and the trees more numerous.
- the lake will get shallower and the trees will be replaced by grass.
- the trees will become coniferous types.
- Some organisms living in a vacant lot include grass, dandelions, mice, grasshop-pers, and slugs. Collectively these organisms represent
- Darwin’s finches are a group of about twelve species of birds that live on the Galapagos Islands. The fact that they have different size beaks is regarded as a conse-quence of
- Predators in an ecosystem
- help the community by keeping the number of prey from outstripping their resources.
- help the prey population by removing the sick and less fit individuals.
- enhance species diversity.
- reduce the possibility of competitive exclusion.
- A walking stick, a type of insect that is a primary consumer, is an example of an organism using
- The buildup of pesticides in ospreys is known as
- biological magnification.
- An organism with the genotype AaVv can produce how many different types of gametes?
Questions 33–34 refer to the following diagram.
- A cell has four chromosomes, which are represented in the original cell drawing. At the end of meiosis I, which of the other four drawings represents a possible out-come?
- At the end of meiosis II, which of the drawings represent(s) possible outcomes?
- In minks, the gene for brown fur (B) is dominant to the gene for silver fur (b). Which set of genotypes represents a cross that could produce offspring with silver fur from parents that both have brown fur?
- In four-o-clocks, pink flowers are the result of a red allele and a white allele for the color gene. If you crossed a white with a pink, what would be the most likely result?
- In four-o-clocks, in addition to the flower color above, some plants may be tall (dominant) while others are short (reces-sive), based on a gene that is not on the same chromosome as the gene for flower color. A pure bred tall, red four-o-clock was bred to a pure bred white, short four-o-clock. Then the resulting F1 was crossed to get the F2. Approximately how many of the F2 will be short and pink?
- A colorblind man married a woman who wasn’t colorblind, but her father had been. What is the possibility that their first child will be a colorblind girl?
- A man with type O positive blood married a woman with type B negative blood. What is (are) the types of blood that their children can have?
- B negative and B positive
- O negative and O positive
- B negative and positive and O negative and positive
- People who have an extra X chromosome could have gotten it through
- The HIV virus infects mostly
- Select the correct order of events in a person’s response to a bacterial infection:
- macrophage ingestion → Helper T cell activation → B cell activation → clonal formation
- clonal formation → Helper T cell activation → B cell activation → macrophage ingestion
- macrophage ingestion → B cell activation → T helper cell activation → clonal formation
- Helper T cell activation → B cell activation → macrophage ingestion → clonal formation
- B cell activation → T helper cell activation → clonal formation → macrophage ingestion
Question 47 refers to the above drawing.
- Choose the one correct statement from the following.
- A = muscle; B = tendon; C = ligament; D = ulna
- A = ligament; B = muscle; C = radius; D = tendon
- A = ligament; B = muscle; C = tendon; D = radius
- A = tendon; B = muscle; C = ligament; D = radius
A = tendon; B = muscle; C = ligament; D = ulna
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