Questions
Using the amino acid translation chart on the following page, provide the mRNA, Codons, Anticodons, and...

Using the amino acid translation chart on the following page, provide the mRNA, Codons, Anticodons, and amino acid chain for the following DNA strand.

DNA: C T A C G G A C C T A T A C G C A A C  A T C G G

mRNA:

Codon:

Anitcodon:

Amino Acids:

In: Biology

You decide to eat a given food. Discuss the various biological steps that will take place...

You decide to eat a given food. Discuss the various biological steps that will take place in your body to extract the necessary nutrients like amino acids, glucose, and fatty acids from the food and make them available to the body cells.

In: Anatomy and Physiology

Consider the following proteins: human serum albumin (pI of 4.7 and a MW of 66,463 Da)...

Consider the following proteins: human serum albumin (pI of 4.7 and a MW of 66,463 Da) and lysozyme (pI of 11.35 an MW of 14,307 Da) To which of the following will human serum albumin bind? To which of the following will lysozyme bind? Choose all correct answers.

a. anion exchange column 3.5

b. anion exchange column 7.5

c. anion exchange column 10.1

d. cation exchange column 3.5

e. cation exchange column 7.5

f. cation exchange column 10.1

please fully explain your answer.

In: Chemistry

is it more energetically expensive to feed monosaccharides other than glucose into the glycolytic pathway? explain....

is it more energetically expensive to feed monosaccharides other than glucose into the glycolytic pathway? explain.

why is the cell's ability to regenerate NAD+ critical to glycolysis? which glycolytic enzyme requires NAD+?

In: Biology

for nucleic acids, where is it meaningfully digested in humans?what is the enzyme used to break...

for nucleic acids, where is it meaningfully digested in humans?what is the enzyme used to break it down?

In: Anatomy and Physiology

Determine whether each of the events involved in protein synthesis occurs in initiation, elongation, or termination.


Determine whether each of the events involved in protein synthesis occurs in initiation, elongation, or termination. 

Initiation Elongation Termination 


Answer Bank 

The small and large ribosomal subunits combine to form an initiation complex. 

The tRNA, mRNA, and new protein are released. 

The small ribosomal subunit attaches to an mRNA molecule. 

The ribosome moves down the mRNA strand to the next codon. 

An initial tRNA molecule pairs with the AUG codon of the mRNA molecule. 

Amino acids are transferred from tRNA molecules to the growing peptide chain. 

The ribosome reaches a stop codon, preventing additional amino acids from being added. 

A peptide bond forms, linking the new amino acid to the growing chain.

In: Biology

New life form discovered bottom of the ocean. This life form uses 8 new amino acids...

New life form discovered bottom of the ocean. This life form uses 8 new amino acids to build proteins, with also the 20 that are already use. Also, size of their codons appears the same as ours. Which statements could be expected to be true for this life form?

Select one:

a. Protein structure will be less diverse

b. Genetic code will be more redundant so more of the codons code for the same amino acids

c. Must have less nucleotides than we do

d. the genetic code will be less redundant so less codons code for the same amino acid

e. No statements can be expected from this life form

In: Biology

QUESTION 70 Water is an excellent solvent for living things because A. compounds with ions like...

QUESTION 70

  1. Water is an excellent solvent for living things because

    A.

    compounds with ions like sodium as well as polar molecules like glucose readily dissolve in water.

    B.

    it is semisolid at body temperature, preventing it from flowing freely through the human body.

    C.

    it maintains an unstable temperature for chemical reactions to occur.

    D.

    it can rearrange its bonds forming a new substance

1.5 points   

QUESTION 71

  1. What do we find in the nucleus of an atom?

    A.

    electrons and protons

    B.

    electrons

    C.

    protons only

    D.

    neutrons and electrons

    E.

    protons and neutrons

1.5 points   

QUESTION 72

  1. Which major digestive process involves nutrient molecules passing from the GI tract into the blood? (they're not asking about the actual breakdown of food)

    A.

    secretion

    B.

    absorption

    C.

    digestion

    D.

    mechanical processing and movement

    E.

    elimination

1.5 points   

QUESTION 73

  1. Which one of the following activities would be facilitated by the  sympathetic nervous system?

    A.

    decreased respiratory rate

    B.

    increased bladder contraction

    C.

    increased blood pressure

    D.

    decreased heart rate

    E.

    increased digestion and absorption

1.5 points   

QUESTION 74

  1. Which one of the following cells transmit impulses away from the central nervous system to the muscles and other organs?

    A.

    sensory neurons

    B.

    motor neurons

    C.

    dendrites

    D.

    none of the above

    E.

    neuroglia

1.5 points   

QUESTION 75

  1. Which one of the following components is needed to synthesize a new strand of  DNA?

    A.

    disaccharides

    B.

    glucose

    C.

    nucleotides

    D.

    amino acids

    E.

    lipids

1.5 points   

QUESTION 76

  1. Which one of the following divisions of the nervous system is active during the relaxed (resting) state?

    A.

    somatic division

    B.

    fight or flight division

    C.

    parasympathetic division

    D.

    sympathetic division

    E.

    endocrine division

1.5 points   

QUESTION 77

  1. Which one of the following forms of birth control reduces the risk of transmission of sexually transmitted diseases?

    A.

    birth control pill

    B.

    hysterectomy

    C.

    IUD

    D.

    condom

    E.

    hysteroscopy

1.5 points   

QUESTION 78

  1. Which one of the following forms the  major portion of the  bilayer structure that is found in cell membranes?

    A.

    amino acids

    B.

    phospholipids

    C.

    saturated fats

    D.

    carbohydrate

    E.

    triglycerides

1.5 points   

QUESTION 79

  1. Which one of the following is TRUE regarding enzymes?

    A.

    Enzymes are not that important in reactions.

    B.

    Enzyme function is not affected by changes in pH.

    C.

    Enzymes are used up in a chemical reaction, so an organism must constantly replace these enzymes.

    D.

    Each enzyme catalyzes one specific reaction or group of reactions.

    E.

    Enzyme function is not affected by changes in temperature.

In: Biology

What is the isoelectric point of the following tetrapetide that contains the amino acids represented by...

What is the isoelectric point of the following tetrapetide that contains the amino acids represented by the single letters “DREN”, such that D is at the amino-terminal end of the peptide and N is at the carboy-terminal end.

A. 3.86

B. 4.06

C. 6.53

D. 8.8

E. 12.48

In: Chemistry

Propose three potential fates of the acetyl CoA generated from catabolism of branched chain amino acids.

Propose three potential fates of the acetyl CoA generated from catabolism of branched chain amino acids.

In: Biology