Exam (elaborations)
LSUE Biology 1001 midterm questions and answers
- Course
- Institution
LSUE Biology 1001 midterm questions and answers
[Show more]
Content preview
LSUE Biology 1001 midterm"If all vertebrates have backbones, and turtles are vertebrates, then turtles have backbones."
This statement is an example of: - questions and answersDeductive reasoning
A basal body is a. composed of nine microtubule triplets surrounding a central pair of
microtubules.
b. similar in structure to centrioles.
c. composed of nine microtubule doublets surrounding a central pair of microtubules.
d. identical in structure to cilia.
e. None of the choices. - questions and answerssimilar in structure to centrioles.
A child dies following a series of chronic bacterial infections. At the autopsy, the physicians are
startled to see that the child's white blood cells are loaded with vacuoles containing intact
bacteria. Which of the following explanations could account for this finding? - questions and
answersA defect in the lysosomes of the white blood cells prevented the cells from destroying
engulfed bacteria
A culture of bacteria growing aerobically is fed glucose containing radioactive carbon and is
then examined. During the citric acid cycle, radioactivity would first appear in - questions and
answersCitrate
A drug is tested in the laboratory and is found to create holes in both mitochondrial membranes.
Scientists suspect that the drug will be harmful to human cells because it will inhibit a. the citric
acid cycle.
b. oxidative phosphorylation.
c. glycolysis.
d. the citric acid cycle and oxidative phosphorylation. - questions and answersThe citric acid
cycle and oxidative phosphorylation
A hydroxyl group is a. also called a carbonyl group.
b. characteristic of proteins.
c. characteristic of alcohols.
d. basic. - questions and answersCharacteristic of alcohols
A hypothesis is... a. the same as a theory.
b. a proposed explanation for a set of observations.
c. an explanatory idea that is broad in scope and supported by a large body of evidence.
d. a widely accepted idea about a phenomenon.
e. All of the choices are correct. - questions and answersA proposed explanation for a set of
observations
,A major function of glycoproteins and glycolipids in the cell membrane is to - questions and
answersAllow the cells of an embryo to sort themselves into tissues and organs
A molecule with the formula C55H110O55 is probably a. a. oil.
b. steroid.
c. protein.
d. polysaccharide. - questions and answersPolysaccharide
A mutant protist is found in which some mitochondria lack an inner mitochondrial membrane.
Which of the following pathways would be completely disrupted in these mitochondria?
a. oxidative phosphorylation
b. alcoholic fermentation
c. glycolysis
d. biosynthesis - questions and answersoxidative phosphorylation
A pH of 1 compared to a pH of 3 is: - questions and answers100 times more acidic
A pharmaceutical company hires a chemist to analyze the purity of the water being used in its
drug preparations. If the water is pure, the chemist would expect to find - questions and
answersH2O molecules, H+ ions, and OH- ions
A redox reaction involves the transfer of - questions and answersAn electron
A scanning electron microscope is used to study ____, whereas a transmission electron
microscope is used to study _____. - questions and answersCell surfaces . . . Internal cell
structures
A scientist suspects that the food in an ecosystem may have been contaminated with
radioactive nitrogen over a period of months. Which of the following substances could be
examined for radioactivity to test the hypothesis? - questions and answersThe hair produced by
humans living in the ecosystem
A solution with a pH of 7 is
a. strongly acidic.
b. weakly acidic.
c. neutral.
d. weakly basic. - questions and answersneutral
A steer must eat at least 100 pounds of grain to gain less than 10 pounds of muscle tissue. This
illustrates - questions and answersThe second law of thermodynamics
A theory is a. an idea that has been proven.
, b. a concept in the early stages that still needs to be tested.
c. a description of a belief that invokes the supernatural.
d. an explanation of an idea that is broad in scope and supported by a large body of evidence.
e. All of the choices are correct. - questions and answersan explanation of an idea that is broad
in scope and supported by a large body of evidence
A tree in your yard is home to 2 cardinals, a colony of ants, a wasp nest, and millions of
bacteria. All these represent: - questions and answersA community
A woman is having trouble becoming pregnant. Examination of her partner's sperm indicates
that dynein feet are missing from the flagella in his sperm cells. A physician explains that this
could interfere with fertility by - questions and answersPreventing the sperm from swimming to
the egg cell
After glycolysis but before the citric acid cycle - questions and answersPyruvate is oxidized
All cells are enclosed by a plasma membrane that is similar in ________ and ________.
a. thickness . . . composition
b. permeability . . . content
c. lucidity . . . texture
d. structure . . . function - questions and answersstructure . . . function
Americans spend up to $100 billion annually for bottled water (41 billion gallons). The only
beverages with higher sales are carbonated soft drinks. Recent news stories have highlighted
the fact that most bottled water comes from municipal water supplies (the same source as your
tap water), although it may undergo an extra purification step called reverse osmosis. Imagine
two tanks that are separated by a membrane that's permeable to water, but not to the dissolved
minerals present in the water. Tank A contains tap water and Tank B contains the purified water.
Under normal conditions, the purified water would cross the membrane to dilute the more
concentrated tap water solution. In the reverse osmosis process, pressure is applied to the tap
water tank to force the water molecules across the membrane into the pure water tank. After the
reverse osmosis system has been operating for 30 minutes, the solution in Tank A wo -
questions and answersBe hypertonic to tank B
Americans spend up to $100 billion annually for bottled water (41 billion gallons). The only
beverages with higher sales are carbonated soft drinks. Recent news stories have highlighted
the fact that most bottled water comes from municipal water supplies (the same source as your
tap water), although it may undergo an extra purification step called reverse osmosis. Imagine
two tanks that are separated by a membrane that's permeable to water, but not to the dissolved
minerals present in the water. Tank A contains tap water and Tank B contains the purified water.
Under normal conditions, the purified water would cross the membrane to dilute the more
concentrated tap water solution. In the reverse osmosis process, pressure is applied to the tap
water tank to force the water molecules across the membrane into the pure water tank. If you
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller lizmwikali72. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79373 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now