biotest_1

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The genetic information in viruses:

c

Escherichia coli and Salmonella can live in our intestines in the presence or absence of oxygen. They are considered which of the following?

c

Endophytes that colonize a leaf to get "first dibs" on the dead tissue are examples of which of the following?

a

Of the three plants measured in figure 18.18, which requires water to allow sperm to swim to the egg?

b

As more CO2 is released into the atmosphere, which of the following would you predict may happen to S. yellowstonensis diatoms in Yellowstone Lake?

a

Smallpox is an enveloped virus with a DNA genome. We have eliminated this once deadly virus through an aggressive world-wide vaccination program. Why might a vaccine be successful with smallpox, but not with HIV?

a

The two classes that make up the angiosperms are:

e

The structure of the angiosperm that supplies nutrients to the germinating seedling is the:

c

Associations of fungi and plant roots are called

...

A type of horizontal gene transfer in prokaryotes in which a cell takes up naked DNA without cell to cell contact is:

...

Hepatitis A and C contain an RNA genome while hepatitis B contains a DNA genome. What could you conclude about these hepatitis viruses

...

The organelle that contains chlorophyll a and carries out photosynthesis in plants is the:

...

What is the genetic material found in HIV?

...

Which protists produce most of the Earth's oxygen?

...

Based on the theory of endosymbiosis, which of the following would you expect to find in a chloroplast?

...

Arabidopsis thaliana is a small angiosperm related to mustard. It is commonly used in plant research experiments. In one such experiment, an antifreeze protein from a species of bacteria was inserted into the genome of Arabidopsis thaliana, and the plants exposed to freezing temperatures. Plants without the antifreeze protein had 90% mortality, while those with the antifreeze protein only had 20% mortality. Arabidopsis thaliana is not a crop plant, why would scientists perform this experiment in this plant?

...

Trichonympha is a unicellular flagellated protist that lives within termites and allows the termite to be able to "digest" wood. Trichonympha is which of the following?

...

The organization of the spores would make Neurospora crassa useful for studying which biological process?

...

The shape of a virus is determined by:

...

The fungus Arthrobotrys anchonia, a carnivorous fungus that forms sacs containing eight spores, belongs to the:

...

The engulfment of food particles by a cell is:

...

The structure that aids in locomotion of some bacteria is a(an):

...

Arabidopsis thaliana is a small angiosperm related to mustard. It is commonly used in plant research experiments. In one such experiment, an antifreeze protein from a species of bacteria was inserted into the genome of Arabidopsis thaliana, and the plants exposed to freezing temperatures. Plants without the antifreeze protein had 90% mortality, while those with the antifreeze protein only had 20% mortality. If the bacterial protein functions in Arabidopsis thaliana which conclusion is supported?

...

African sleeping sickness is caused by Trypanosoma brucei, a unicellular flagellated protist infects red blood cells after being injected into the blood stream. Trypanosoma brucei is which of the following?

...

Zygospores are formed when two haploid hyphae fuse. Zygospores are which of the following?

...

The rigid barrier that surrounds most prokaryotes is the:

...

Flowers:

...

Endophyte spores were sprayed on the cacao leaves. Which of the following is true of spores?

...

In figure 18.18, the decrease of herbs (grasses) and increase in mosses would suggest that the climate in Siberia has become __________ in the past 10,000 years.

...

The primary component making up the cell walls of bacteria is:

...

If S. niagarae did evolve into S. yellowstonensis this would be an example of which of the following?

...

A plant disease called ergot is caused by:

...

The part of the plant that absorbs water and nutrients is the:

...

Escherichia coli and Salmonella can remain in one location in our intestines. They would most likely contain which of the following?

...

When a haploid spore germinates it goes through mitosis forming hyphae. The resulting hyphae would be which of the following?

...

Yeasts are:

...

In alternation of generations, a diploid sporophyte goes through meiosis to form ____ spores.

...

Given the structure of the anti-HIV drug azidothymidine (AZT), how do you think it blocks viral replication?

...

Viruses that infect bacteria are:

...

The leaf-cutter ants of Central America use leaves as food to cultivate the basidiomycete Lepiota in special underground chambers. Streptomyces bacteria coat parts of the ants' cuticles and secrete a potent antibiotic that kills an ascomycete that attacks the cultivated fungus. Lepiota is most closely related to which of the following?

...

The four phyla of the gymnosperms are:

...

Cryptosporidium is an apicomplexian that can contaminate water supplies. Which of the following would you predict to be the case of a Cryptosporidium outbreak?

...

Plants and algae most recently shared a common ancestor 480 million years ago, and plants colonized land shortly after that. Light, water, minerals, and dissolved gases surround the whole body of a submerged green alga, and the buoyancy of water provides physical support. What adaptation did plants have to make in taking up gasses without drying out when they moved to dry land?

...

Protists:

...

The part of the plant that conducts water and dissolved minerals from the roots to the leaves is the:

...

Why were some leaves on a cacao plant treated with endophytes and others not?

...

The vaccine against the influenza virus is prepared by treating the virus with detergent. How would this inactivate the virus?

...

eviewing figure 15.4, which of the following is true of HIV?

...

Which of the following is a difference between a diatom and a lodgepole pine?

...

An infectious RNA molecule is a:

...

Clostridium tetani, the bacterium that causes tetanus, can only survive in soil away from oxygen. It is considered which of the following?

...

Infections by Heliobacter pylori cause 90% of peptic ulcers in the U.S. These bacteria have pili that are expressed in acidic conditions. A characteristic of this organism should be:

...

A function that the glycocalyx does not have for a bacterium is:

...

A substance produced by brown algae that is used as an emulsifying and thickening agent in many foods and other products is:

...

About 80% of all land plants, including grasses, shrubs, and trees, form mycorrhizae. Mycorrhizae are which of the following?

...

The two types of vascular tissue in most plants are:

...

Bacteria and archaea use the same four bases in their DNA as eukaryotes. This supports which of the following statements?

...

Most viruses:

...

Drugs like Aziodothymidine (AZT):

...

A prokaryote that occupies a habitat that is characterized by extreme heat (above 50 degrees Celsius) is a(an):

...

It has been difficult to generate drugs to treat AIDS for which reason?

...

The fruits of plants primarily function in:

...

The structures of prokaryotes that are used to transfer DNA from one cell to another are:

...

In figure 19.22, did the age of the leaf at the time of treatment affect the ability of endophytes to protect the plants?

...

DNA sequence evidence suggests that plants, fungi, and animals arose from different lineages of unicellular protists. This suggests which of the following?

...

Biofilms are organized aggregates of bacteria that may:

...

Since viruses have no active methods of entering plant cells, they must rely upon mechanically caused wounds, vegetative propagation of plants, grafting, seed, pollen, and being carried on the mouth parts of chewing insects. Tobacco mosaic virus is most commonly introduced into plants through small wounds caused by handling and by insects chewing on plant parts. What would prevent viruses from easily entering plant cells?

...

Methicillin is related to penicillin, which was isolated from the bread mold Penicillium. Based on this, which of the following can you conclude is different between S. aureus and Penicillium?

...

Clostridium tetani, the bacterium that causes tetanus, can survive in soil for up to 40 years. It is most likely in which of the following structures?

...

Methicillin inhibits cell wall production. Why does this make it an effective antibiotic?

...

Based on figure 16.15, which of the following best explains why toxic shock syndrome peaked in the early 1980s?

...

Based on figure 15.9, which of the following statements is most likely accurate?

...

Sponges:

...

Ascomycetes are the largest group of fungi. When their haploid hyphae fuse without fusion of their nuclei, the resulting cells are which of the following?

...

Valley fever is caused by:

...

A layer of host cell membrane attached to a virus is called:

...

The stage of viral replication in which the host cell produces viral nucleic acids and proteins is:

...

SIV causes symptomless infections in monkeys and apes, yet causes AIDS-like disease in chimpanzees. HIV is closely related to SIV and causes AIDS in humans. Which of the following is the best explanation for these observations?

...

Arabidopsis thaliana is a small angiosperm related to mustard. The fact that it has 139 genes that correspond to disease-causing genes in humans suggests which of the following?

...

Mitochondria in algae are thought to have arisen from which source?

...

Where in a diatom would you find their yellowish photosynthetic pigment?

...

A microbiologist gram stains a bacterium and finds the bacterium to be pink to red in color, this identifies:

...

The three most common shapes of bacteria are:

...

The first land plants were bryophytes, which then branched into ferns, gymnosperms, and finally angiosperms. What advantage did angiosperms have over gymnosperms?

...

Dictyostelium discoideum is an unusual organism, one that straddles the boundary between the unicellular and the multicellular. Its feeding phase consists of individual amoeba-like cells that move independently, feeding on bacteria by phagocytosis. When the food runs out, cells begin to aggregate into a multicelled structure that migrates toward light. The cells differentiate into a base, stalk, and spores; only the spores survive to colonize a new habitat. What is the advantage of forming spores?

...

How would methicillin resistance arise in a strain of S. aureus?

...

Which of the following is a correct statement?

...

Fungi are classified into phyla based on which characteristic?

...

The main storage carbohydrate in fungi is:

...

Which of the following is a difference between how a frog and Chytridiomycetes obtain energy?

...

In malaria, Plasmodium falciparum grow inside of which human cells?

...

The treating of a viral infection by inoculating the host with a bacterial virus:

...

Many doctors recommend that all women be vaccinated for HPV before they become sexually active. Which step in the viral life cycle would first be blocked by a vaccine?

...

In a fungus aggregated hyphae form a specialized spore producing organs called:

...

How might global climate change affect the distribution of malaria?

...

The Irish potato famine in the mid 1840s was caused by which heterotrophic protist decomposer that secreted digestive enzymes onto potatoes?

...

Flowers and fruits are unique to:

...

Which of the following was the last to appear in the fossil record?

...

Chloroplasts in algae are thought to have arisen from which source?

...

Why did the authors choose to look for the rubisco gene in their core samples?

...

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