BMED 1106 midterm review Flashcards

1. What event is thought to have contributed to the evolution of eukaryotes

Which characteristic is shared by prokaryotes and eukaryotes?

Mitochondria most likely evolved by

which of these protists is believed to have evolved following a secondary endosymbiosis

In 2016, scientists published the genome of Monocercomonoides, and demonstrated that this organism has no detectable mitochondrial genes. However, its genome was arranged in linear chromosomes wrapped around histones which are contained within the nucleus. Monocercomonoides is therefore a(n) _

Which of the following observations about a bacterium would distinguish it from the last eukaryotic common ancestor

protists that have a pellicle are surrounded by _________.

Protists with the capabilities to perform photosynthesis and to absorb nutrients from dead organisms are called

Which of these locomotor organs would likely be the shortest?

Alternation of generations describes which of the following

The amoeba E. histolytica is a pathogen that forms liver abscesses in infected individuals. Its metabolic classification is most likely ______.

Which protist group exhibits mitochondrial remnants with reduced functionality?

Conjugation between two Paramecia produces ________ total daughter cells.

what is the function of the raphe in diatoms?

What genus of protists appears to contradict the statement that unicellular restricts cell size

An example of carbon fixation is ____

Which parasitic protist evades the host immune system by altering its surface proteins with each generation

which of the following is not a way that protists contribute to the food web

A marine biologist analyzing water samples notices a protist with a calcium carbonate shell that moves by pseudopodia extension. The protist is likely to be closely related to which species?

Which polysaccharide is usually found in the cell wall of fungi

Which of these organelles is not found in a fungal cell

The wall dividing individual cell in a fungal filament is called a

During sexual reproduction, a homothallic mycelium contains

The life cycles of perfect fungi are most similar to which another organism

The most primitive phylum of fungi is the ___________.

Members of which phylum establishes a successful symbiotic relationship with the roots of trees.

Members of which phylum produce a clubshaped structure that contains spores

The fungi that do not reproduce sexually used to be classified as

A scientist discovers a new species of fungus that introduces genetic diversity during reproduction by creating a diploid zygote. This new species cannot belong to which modern phylum of fungi

What term described the close association of fungus with the root of tree

why are fungi important decomposers?

Consider an ecosystem where all the fungi not involved in mycorrhizae are eliminated. How would this affect nitrogen intake by plants?

A fungal infection that affects nails and skin is classified as

A fungus that climbs up a tree reaching higher elevation to release its spores in the wind and does not receive any nutrients from the tree or contribute to the tree’s welfare is described as a

The targets for anti-fungal drugs are much more limited than antibiotics or anti-viral medications. Why?

Yeast is a facultative anaerobe. This means that alcohol fermentation takes place only if

The advantage of yeast cells over bacterial cells to express human proteins is that

Why are fungal insecticides an attractive alternative to chemical pesticides for growing food crops

The first forms of life on Earth were though to be the _________________

Microbial mats _______

The first organisms that oxygenated the atmosphere were

Halophiles are organisms that require _______.

Many of the first prokaryotes to be cultured in a scientific lab were human or animal pathogens. Why would these species be more readily cultured than non-pathogenic prokaryotes?

The presence of a membrane-enclosed nucleus is a characteristic of ______________.

Which of the following consist of prokaryotic cells

The cell wall is ________.

Organisms most likely to be found in extreme environments are

Prokaryotes stain as gram-positive or gram negative because of differences in the cell

Pseudopeptidoglycan is a characteristic of the walls of ________.

The lipopolysaccharide layer (LPS) is a characteristic of the wall of

Which of the following elements is not a micronutrient

Prokaryotes that obtain their energy from chemical compounds are called

Ammonification is the process by which __________.

Plants use carbon dioxide from the air and are therefore called

cyanobacteria harness energy from the sun through photosynthesis and oxidize water to provide electrons for energy generation. Thus, we classify cyanobacteria as

A disease that is constantly present in a population is called

Which of the statements about biofilms is incorrect

Which of these statements is true

A person in England arrives at a medical clinic with a fever and swollen lymph nodes shortly after returning from a visit to New Mexico. For which bacteria should the doctor test the patient?

In addition to providing yogurt its unique flavor and texture, lactic acid-producing bacteria also provide which additional benefit during food production

Which of these occurs through symbiotic nitrogen fixation

Synthetic compounds found in an organism but not normally produced or expected to be present in that organism are called _______.

. MRSA has emerged as a serious infectious disease, with the first case of methicillin resistant S. aureus being detected in 1961. Why are medical professional so concerned when antibiotic exist that can kill MSRA

Bioremediation includes _______.

Which statement is true

The viral ______ play(s) a role in attaching a virion to the host cell

Viruses ______.

The observation that the bacteria genus Chlamydia contains species that can only survive as intracellular parasites supports which viral origin hypothesis

A scientist discovers a new virus with a linear, RNA genome surrounded by a helical capsid. The virus is most likely a member of which family based on structure classification

Which statement is NOT true of viral replication

Which statement is TRUE of viral replication

Which statement is true of reverse transcriptase

Oncogenic viruses cores can be-

Which is true of DNA viruses

A bacteriophage can infect__________

People with the CCR5Δ32 mutation of a T-cell surface protein can be exposed to some strains of HIV-1 without becoming sick. What step of the virus life cycle is likely to be inhibited with this mutation?

AN apple grower notices that several of his apple trees with fungi growing on their trunks have developed necrotic ring spots, while other trees in the orchard that lack fungi appear healthy. Hats is the most likely conclusion the farmer can make about the virus infecting his apple trees

Which of the following is NOT used to treat active viral disease

Vaccines

A patient presents at the clinic with an acute viral infection. Assays that analyze the viral lifecycle classify the virus into Group V with a segmented genome. Which virus is the most likely diagnosis for the patient

Which of the following is not associated with prions

Which statement is true of viroids