Quiz Preview 1. Biology & Microbiology - General Biology

When the substrate is bound to the enzyme, the shape of the enzyme may change slightly, leading to

Summarize Fredrick Griffith’s, Oswald Avery’s, and others’ experimental search for a treatment for pneumonia. What will be an ideal response?

<p>ANSWER: Griffith discovered that the ability to cause pneumonia is a genetic trait that can be passed
from one strain of bacteria to another. Griffith isolated two strains of Streptococcus
pneumoniae. One strain was surrounded by a capsule that allowed it to evade the immune
system and cause pneumonia. Griffith called this strain S. The other strain was not surrounded by a capsule and did not cause pneumonia. Griffith called this strain R. He found
that mice injected with strain R do not develop pneumonia and mice injected with strain S
develop pneumonia and die. Furthermore, when the S strain cells are killed by heat treatment
before injection, mice do not develop pneumonia. Griffith discovered that when mice are
injected with a mixture of heat-killed S cells and live R cells, they develop pneumonia and
die. Avery concluded that DNA from the dead S cells was responsible for transforming the R
cells into S cells.</p>

3

Which of the following statements is false?

4

A pair of corresponding chromosomes, one from each parent, is called ____________________. Fill in the blank(s) with the appropriate word(s)

5

The study of interactions among organisms and between organisms and their environment is known as ____

6

Plastoquinone (PQ), an electron carrier of small molecular weight, is found in the electron transport chain associated with photosystem II. If PQ is not directly anchored to other membrane or cytoplasmic structures, it is probably _____

7

________ is a hydroxyl group

8

Queen Elizabeth II of England is a descendant of Edward VII of England, who was the son of Queen Victoria. Edward VII did not have hemophilia

9

Which of the following is the proper sequence for mitosis (I. metaphase, II. telophase, III. prophase, IV. anaphase)?

10

The phospholipid bilayer that surrounds/maintains the integrity of a cell is called a

11

Farmers and horticulturalists have bred broccoli, cauliflower, kale, and cabbage from the wild mustard plant through

12

Which of the following is NOT a characteristic of all living organisms?

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In mitosis, if a parent cell has 16 chromosomes,

14

Does the ratio of carbon to hydrogen convey any structural information?

15

All of the following are responses to allergen detection generated by mast cells EXCEPT

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Select the statements that provide direct biogeographical evidence for evolutionary theory. Check all that apply.A) Unrelated organisms from similar habitats exhibit similar characters.B) Terrestrial mammals are not found naturally on any island greater than 300 miles from a mainland.C) Organisms on islands are most similar to organisms on the nearby mainland, even when habitats on the mainland and island are quite different.D) Invasive rats have colonized more than 80% of the world's islands.

17

Metamorphosis occurs in which of the following vertebrate classes?

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Tracers are elements that

19

The main criteria presently used for grouping viruses does NOT include

20

Which variable is not a density-dependent factor?

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Primary growth (lengthening) arises from __________. Fill in the blank(s) with the appropriate word(s)

22

What components make up the ribosomes?

23

It is summer, and you are excited about going to your local amusement park, and specifically about riding the new roller coaster that was just built. You imagine waiting at the top of the stairs for the roller coaster to pull into the station, climbing into the car, strapping yourself into the seatbelt, and pulling down the harness. You can imagine the cars slowly chugging up to the top of the first hill, coming down on the other side, and the excitement you expect to feel as you go along for the ride. Of all of the things that you have imagined, which is an example of potential energy?

24

Hibernation in small mammals is an example of what specific phenomenon?

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Based on the diagrams in the figure above and on the large population of baby boomers in the United States, which graph best reflects U.S. population in twenty years?

26

By hunting at different times of day, hawks and owls are able to reduce.

27

Fossils of most of the animal phyla present today were first found during the

28

The water-vascular system is used primarily for:

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The study and reconstruction of phylogenies is

30

What would happen to a plant that is treated with a chemical that prevents electrons from moving through the electron transport chain?

31

Loosely packed regions of DNA associated with histones are called ____

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Hormones from the anterior pituitary gland are not secreted unless they are stimulated to be released by ________ from the hypothalamus

33

On Easter Island in the Pacific Ocean, from

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This tissue gives pear flesh a gritty texture and makes seed coats hard:

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In order to prevent the onset of hemolytic disease of the newborn, an Rh- woman who is pregnant with an Rh+ child can be given ________ during pregnancy