1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ohaa [14]
3 years ago
14

The DNA in a cell's nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well

as proteins that are targeted for secretion from the cell.
For example, consider these two proteins:
1. Phosphofructokinase (PFK) is an enzyme that functions in the cytoplasm during
glycolysis.
2. Insulin, a protein that regulates blood sugar levels, is secreted from specialized
pancreatic cells.
Assume that you can track the cellular locations of these two proteins from the time that translation is complete until the proteins reach their final destinations.
For each protein, identify its targeting pathway: the sequence of cellular locations in which the protein is found from when translation is complete until it reaches its final (functional) destination. (Note that if an organelle is listed in a pathway, the location implied is inside the organelle, not in the membrane that surrounds the organelle.)
a. Cytoplasm only, ER --> cytoplasm, ER --> Golgi --> outside cell, cytoplasm --> ER --> outside cell, Golgi --> ER --> outside cell, cytoplasm --> Golgi --> outside cell, nucleus --> cytoplasm, ER --> Golgi --> cytoplasm
b. Protein Targeting Pathway
c. PFK _______________
d. Insulin _______________
Biology
1 answer:
spayn [35]3 years ago
6 0

Answer:

PFK (protein): cytoplasm only (targeting pathway)

Insulin (protein): ER->Golgi->outside cell

Explanation:

Translation can be described as the mechanism by which a protein is produced through a mRNA.

If a particular protein is to function inside the same cell, then it doesn't need to get any modification so that it can travel outside the cell. Such type of proteins are translated on free cytoplasmic ribosomes and are released directly into the cytoplasm to perform their function. For example, PFK protein.

If a protein has to function outside the cell where it is produced, then it has to be modified. Such type or proteins are translated on the rough ER.  They are then modified in the Golgi complex and then transported outside the cell to the area where they have to function. For example, insulin.

You might be interested in
Identify and describe the various satellites the orbit in our solar system.
Hitman42 [59]

Answer:

Explanation:

The seven largest natural satellites in the solar system (over 2,500 km in diameter) are the four Jovian Galilean moons - Ganymede, Callisto, Io, and Europa - Saturn's moon Titan, Earth's own Moon, and the satellite captured natural of Neptune Triton.

They move around a larger body. They revolve around these bodies because of their gravitational pull. The orbits that they describe when turning on these bodies can be regular or irregular.

Natural satellites of planets in the Solar System

Mercury → 0.

Venus → 0.

Earth → 1.

Mars → 2.

Jupiter → 79.

Saturn → 82.

Uranus → 27.

Neptune → 14.

6 0
3 years ago
Assume that a cross is made between AaBb and aabb plants and that the offspring occur in the following numbers: 106 AaBb, 48 Aab
Elenna [48]

Answer:

linkage with approximately 33 map units between the two gene loci

Explanation:

If two genes are not linked, number of recombinants and parental offspring will be equal. Here it is clearly visible that recombinants are less than parental offspring hence the genes are linked. Given, the offspring are in following numbers:

AaBb = 106 = Parental

aabb = 94 = Parental

Aabb = 48 = Recombinant

aaBb = 52 = Recombinant

Recombination frequency = (Number of recombinants/ Total progeny) * 100 = (100/300) * 100 = 33.33 %

1% recombination frequency= 1 map unit of distance between the two gene loci. So here the distance between the two gene loci is approximately 33 map units.

Hence, these results are consistent with linkage with approximately 33 map units between the two gene loci

3 0
3 years ago
i need help With this question i need as much help as possible!!!!!!!! Propose an explanation for any difference between your re
garik1379 [7]

Very simple. At rest, you have a number of bpm. After exercise, the heart can't return abruptly to the rest speed, and it keeps a faster rate for a while.

5 0
3 years ago
Fourteen elements are found in very small quantities in the cell but are required for cells to survive. what are these elements
Alex787 [66]

Certain elements are required in large quantities, and others are required in small amounts by the body, but both are essential for the survival of the cells. The cells which are required in large amounts are called as macronutrients, while the ones required in small quantities are called as micronutrients, or trace elements.

Hence, the answer is trace elements or micronutrients.

3 0
3 years ago
Which best describes the molecules that make up protein
vladimir1956 [14]

Answer:

Proteins are made up of monomer units connected together. These units are called amino acids. Each amino acid has a carbonyl group and an amine group. These two groups will link when the amino acids are added. Also, an amino acid has a specific R group that characterizes which type of amino acid it is.

Hope this helps.

8 0
3 years ago
Read 2 more answers
Other questions:
  • WILL GIVE A BRAINLEST FOR RIGHT ANSWER
    15·2 answers
  • Why is guys attitude different from girls
    12·2 answers
  • What kind of organisms were missing from the first classification system?
    14·1 answer
  • Observations
    14·1 answer
  • Which substance is the focal point of climate models such as sea ice, heat and salinity exchange, and phase changes?
    14·1 answer
  • Kara thinks that she and the gorilla are going to be friends. Why might she think this? Support your answer with evidence from t
    8·1 answer
  • Events that take place in a biome are shown in the diagram below.
    5·1 answer
  • Why do we have storage macromolecules, such as fats, in our bodies?
    14·1 answer
  • How to use bacteria as a treatment for sewage waste
    8·1 answer
  • How would a forensic scientist MOST accurately describe the chemical properties of a cup of gasoline?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!