Questions
Determine the correct answer and explain why it is correct. Identify why the other options are...

Determine the correct answer and explain why it is correct. Identify why the other options are not correct.

  1. Which one of the following correctly describes how the acetyl-CoA is metabolized in the mitochondria?
  1. One molecule of acetyl-CoA produces two molecules of CO2, three molecules of NADH, one molecule of FAD(2H) and one molecule of ATP.
  2. All of the energy for high-energy phosphate bonds is derived from oxidative phosphorylation.
  3. NAD+ is the only electron acceptor in the cycle.
  4. Substrate-level phosphorylation generates one high-energy phosphate bond during the cycle.
  5. The TCA cycle requires large amounts of vitamins C and D as coenzymes.

In: Biology

1)Compare Eukaryotic and Prokaryotic Cells.

1)Compare Eukaryotic and Prokaryotic Cells.

In: Biology

Mendelian Genetics In tomato plants, the gene R has two alleles that control fruit color: the...

Mendelian Genetics

In tomato plants, the gene R has two alleles that control fruit color: the R allele is dominant and produces red tomatoes; the r allele is recessive, and when homozygous produces yellow tomatoes. Gene T controls plant height: the T allele is dominant and produces tall plants; the t allele is recessive and when homozygous produces dwarf plants. Genes R and T undergo independent assortment.

A. Parental tomato plants of genotype RRTT and rrtt are crossed. What genotype and phenotype do you expect in the F1 generation?

B. The F1 tomatoes are interbred. Draw a Punnett Square to predict the genotypes and phenotypes that will be seen in the F2 generation. Why is this only a prediction?
C. What fraction of the F2 generation is expected to be purebreeding?
D. Would you expect to see the same or different results if the parental tomato plants had genotypes RRtt and rrTT?

In: Biology

Should we be worried about low genetic variation in small populations of endangered species? Focus your...

Should we be worried about low genetic variation in small populations of endangered species? Focus your answer in at least two different endangered species

In: Biology

You may choose more than one answer. Which of the following is a mechanism of signal...

You may choose more than one answer. Which of the following is a mechanism of signal amplification in the cAMP-PKA pathway?

One signal molecule, epinephrine, activates lots of G-proteins.

When activated, adenylyl cyclase synthesizes many cAMP molecules.

cAMP-activated protein kinase A (PKA) can activate a number of target proteins by phosphorylation.

Proteins phosphorylated by PKA can further activate other proteins that make other products

In: Biology

Discussion Topic: Teaching Chemistry for Understanding Re-explain the following topic as if you were teaching it...


Discussion Topic: Teaching Chemistry for Understanding

Re-explain the following topic as if you were teaching it to others in a way they can understand it.

Explain Enzyme Structure and Function in a minimum of 200 words.

In: Biology

According to the CDC, more than half of all Americans consumed a supplement in 2012. Supplements...

According to the CDC, more than half of all Americans consumed a supplement in 2012. Supplements are common in our culture, and many people think they need to consume a supplement to be healthy. Are supplements safe? In this forum, we will investigate vitamin and mineral supplements.

Using your favorite search engine, find a vitamin and mineral supplement and evaluate it. In your initial forum post, discuss the following:

  • What is the cost of these supplements?
  • How do the amounts of vitamins and minerals in the product compare with the DRIs, AI, and UL?
  • Are the levels of nutrients safe?
  • What compounds are included that are not essential nutrients?
  • What disclaimers or warnings are made about the product? Does the manufacturer provide scientific evidence to back up their claim?
  • How likely is the supplement to improve a person’s health?

In: Biology

Discuss a different good microorganism (e.g., a bacteria or fungus) and the benefits of this good...

Discuss a different good microorganism (e.g., a bacteria or fungus) and the benefits of this good microorganism. Be sure to properly cite your source for the microorganism you have chosen.

In: Biology

Record your estimate of neurocranial size relative to face size, and the presence or absence of...

Record your estimate of neurocranial size relative to face size, and the presence or absence of postorbital construction of primates. (Use ratios)

Just use your best guess, was given no other information

In: Biology

Explain the different steps that you would go through to if you decide to have prenatal...

  1. Explain the different steps that you would go through to if you decide to have prenatal genetic testing. (4 pts)

In: Biology

1. Which is the earliest species of hominin to be found outside of Africa? 2. List...

1. Which is the earliest species of hominin to be found outside of Africa?

2. List a couple features of "archaic" Homo sapiens, as compared to Homo erectus

3. List a couple features of "archaic" Homo sapiens, as compared to modern humans.

4. What two groups of people made an appearance around 150,000 years ago

In: Biology

Because the interior of cell membranes is made of non-polar molecular regions, drugs with acid-base properties...

Because the interior of cell membranes is made of non-polar molecular regions, drugs with acid-base properties are better absorbed by cells when their most abundant form is not electrically charged (not an ion). In which region of the body will phenobarbital be absorbed at the lowest rate? (stomach, duodenum, jejunum).

it's not stomach

In: Biology

Many individuals have contributed in the discovery, understanding, and explanation of illness, injury, and death. For...

Many individuals have contributed in the discovery, understanding, and explanation of illness, injury, and death. For example: discovery of microscopic organisms, later called microbes, bacteria, and microorganisms; and advanced chemistry and histology which influenced advances in the study and control of diseases in epidemiology.

Of these discoveries, select 1 that is of interest to you and explain the implications that it has on human health.

Discuss the role that increasing life expectancy over the last century has on the types of diseases and conditions affecting mankind.

In: Biology

Disciplinary Measures The appropriate disciplinary actions needed are not always apparent to those involved. That is...

Disciplinary Measures

The appropriate disciplinary actions needed are not always apparent to those involved. That is one reason your textbook will be a wonderful reference book and a great start to your professional library. The manager who wants to be fair and just is one who gives great thought before administering discipline.

After completing the reading, respond to each of the scenarios below.

A. June Skinner is an assistant social worker at Valley Cancer Treatment Center, where you are Director of Social Work (DSW). Barb Simmons, Senior Social Worker, was not back from lunch and so June was given a phone call pertaining to one of Barb’s patients. Being inexperienced, June unintentionally shared information about a patient, Debbie Fox, over the phone with someone who was not authorized to be given medical information about Ms. Fox. That person was the patient’s ex-husband. He told June that he was Debbie’s father (who was on the list of people who could get information about Ms. Fox). Now the ex-husband is going to use the information against the patient in a child custody hearing. You, as DSW must deal with this situation and decide on the proper course of action. Describe the conflict situation using theories and key terms from your reading. In your response, also provide a course of action and justification for doing so.

B. You are the Food Services Director of St. Regis Hospital with a staff of 135 employees. The Senior Staff Dietician, Joe Smith, was dismissed on charges of embezzlement. The problem is, Mr. Smith had been with St. Regis for over 30 years, and was well loved by the food services staff. Since his departure, morale of the department has sharply declined. Explain your plan for using leadership skills to raise department morale and foster teamwork.

In: Biology

To gain further understanding of some functionality of the brain, complete the following: outlining what functionality...

  1. To gain further understanding of some functionality of the brain, complete the following: outlining what functionality could be affected if an individual suffered damage to the cerebral cortex. Be sure to explain about what you learned about cerebral cortex, what would happen if it were damaged, and why you believe knowledge of this information is important to psychologist?
  2. Explain the roles of each following plays in sending a message through a neuron: dendrites, axon, myelin sheath

In: Biology