What is the difference between positive and negative feedback?

What is the difference between an endergonic and exergonic reaction?

What's needed to go on to kreb cycle, what's need to go into electron transport chain?

What are the end products and amount for glycolysis, krebs cycle and electron transport chain?

(in detail- thanks)

Question 56 (1 point)

To measure T cell function, we perform

Question 56 options:

Question 57 (1 point)

Lack of tonsils as an indicator of the lack of B cells is seen in baby boys with which of the following immunodeficiencies?

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Question 58 (1 point)

____________ infections suggest defects in antibody production, ____________ infections suggest defects in T cell function, and both types of infections suggest ________________.

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Question 59 (1 point)

Acquired immunodeficiencies can be the result of

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Question 60 (1 point)

To diagnose an immunodeficiency of

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Question 36 (1 point)

Antibody-mediated destruction of the acetylcholine receptor at the postsynaptic membrane of the neuromuscular junction occurs in which of the following diseases?

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Question 37 (1 point)

IgA autoantibodies against gliadin, tissue transglutaminase, and endomysium are found in patients with the following disease.

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Question 38 (1 point)

How should a patient with Hashimoto's disease be treated?

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Question 39 (1 point)

How would you determine a diagnosis of celiac disease?

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Question 40 (1 point)

Antibodies found in type 1 insulin-dependent diabetes include

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How does the immune system stop itself after the pathogen is cleared?

How are B and T cells made?

How does the immune system allow helpful commensal bacteria to survive but not potentially pathogenic bacteria in the mucosal tissues?

How do the parts of the immune system communicate with each other?

8. A circular plasmid of 6200 base pairs (bp) with three restriction enzyme sites at 900, 1300, and 4000 bp. You digest this plasmid, then run the digest on a gel. What are the expected DNA fragment sizes?

9. A linear plasmid of 6200 base pairs (bp) with three restriction enzyme sites at 900, 1300, and 4000 bp. You digest this plasmid, then run the digest on a gel. What are the expected DNA fragment sizes?

10. In a random sequence consisting of equal proportions of all four nucleotides, what is the average distance between restriction enzymes for a restriction enzyme with a 4-base cleavage site (hint- look for a similar problem in your book).

Link the genetic characteristics to the DNA structure and also list and describe Mendel's principles and describe how each contribute to genetic variability. How might biology have be different if his discoveries had not been lost for decades? Be prepared to discuss the significance of Mendel's discoveries to moder biology.

Under what conditions are generalization favored overspecialization and vice versa. Explain why those conditions lead to specialization or generalization. For each of the animals below, tell me the ways they are likely to avoid predation of themselves or their offspring (tactics that may be employed to deter predators, camouflage techniques, behavioral techniques/postures, etc.).  There can be multiple answers per species. You’ll have to use your web skills to look these up! Put some thought into it!

• Northern Elephant Seal (Mirounga angustirostris)

• Broccoli (Brassica oleracea var. Italica)

• Blue-ringed octopus (Hapalochlaena spp.)

• Killdeer (Charadrius vociferus)

• Five-lined skink (Plestiodon faciatus)

Differences between Translation and transcription

Purpose

Definition (scientific and in your own words so a 6th grader would understand it)

Products

Location

Initiation

Termination

Elongation

Inhibitions (antibiotics)

A mutation in the liver enzyme PFK-2/FBPase-2 results in the loss of cAMP-dependent kinase phosphorylation site, thus resulting in a loss of responsiveness to cAMP-dependent kinase. What are the effects of this mutation on blood glucose levels during times of fasting? Please explain your answer.

Explain in detail how two-component systems detect an environmental signal and mediate a change in transcription in response to the signal. Your answer should include all essential domains and residues.

Which of the following statements regarding flagella are true?

Select one or more:

a. Some microbes contain internal flagella

b. Some microbes contain external flagella

c. All flagella spin in a circular fashion

d. Some microbes contain perpendicular flagella

e. Bacterial flagella consist of multiple parts

59. If "O" is the gene for the color of a carrot, and "OO" is the written form of the genotype, what is the genotype? a. orange b. heterozygous dominant c. homozygous recessive d. homozygous dominant e. heterozygous recessive

When you pour salt on a snail or slug, they begin to shrivel up and die while excreting a bubbly mucus around themselves, what process best describes what is happening to the snail? a. Osmosis b. Endocytosis c. Passive Facilitated Diffusion d. Passive Simple Diffusion e. Active Transport

What attracts or directs the synthesis enzyme to the template in Transcription? a. Promoter b. 5'-cap c. Poly-A Tail d. Start Codon e. Primer

Thinking of the various molecules that make up a biological membrane, the nature of which molecule specifically provides membranes with its unique structure (the bilipid layer)? a. proteins b. phospholipids c. carbohydrates d. cholesterol e. cellulose

70. Why is the cytoskeleton and ribosomes characterized as cellular structures rather than organelles? a. they lack a cell wall b. they lack a nucleus c. they lack a biological membrane d. they are characterized as vacuoles, not structures e. they lack nucleotides

73. Which of the following is NOT a function of cellular membranes? a. regulate transport of a solute b. localize function c. define compartments d. mediate cell-to-cell communication e. locomotion

1. Following information is from the instruction of Q5 DNA polymerase: One unit of enzyme will incorporate 10 nmol of dNTP into acid insoluble material in 30 minutes at 74°C. The temperature of denaturing should be (   ) and the temperature of extension should be (   )

   		94℃ to 98℃ for both.
   		94℃ to 98℃ for denaturing, 74℃ for extension.
   		72℃ for denaturing, 50℃ to 65℃ for extension.
   		94℃ to 98℃ for denaturing, 50℃ to 65℃ for extension.

In the glycolytic pathway, the enzyme triose phosphate isomerase catalyzes the conversion of of dihydroxyacetone phosphate to glyceraldehyde-3-phosphate, which is then immediately utilized by glyceraldehyde-3-phosphate hydrogenase to continue through glycolysis. In an experimental cell culture model, inhibition of triose phosphate isomerase leads to cell death in anaerobic conditions. These cells survive, however under aerobic conditions. Please explain these findings. In your answer consider the energy production in aerobic vs. anaerobic metabolism.