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DedPeter [7]
3 years ago
6

To which organelle does a C-terminal signal peptide sequence of the four amino acids KDELdirect peptides?

Biology
1 answer:
Fofino [41]3 years ago
7 0

Answer:

Endoplasmic reticulum.

Explanation:

Protein synthesis, sorting and transport is the important mechanism for the synthesis of protein in the body and the transport of the protein to its specific site or organ. The protein must reaches to its final destination for its proper functioning.

KDEL ( K- leucine, D is aspartic acid, E is glutamic acid and L is lysine ) is the stretch of a specific amino acid that are responsible for the protein molecule to target at its specific site. KDEL is specific for the transport of peptides to the endoplasmic reticulum.

Thus, the correct answer is option (A).

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an electric car uses a battery to make the car move. what kind of energy transition is happening in the car?
Mnenie [13.5K]

Answer:

When the battery is used to start the car, The energy is converted from electrical to mechanical energy to move the car, The chemical energy in the form of gasoline converts to the mechanical energy, and each transformation leads to the production of the heat.

3 0
2 years ago
A 43-year-old Caucasian man with a 20-year history of bipolar disorder presents for the first time with long-term polyuria and p
PolarNik [594]

Answer:

The correct option is 2 Nephrogenic diabetes insipidus.

Explanation:

Nephrogenic diabetes insipidus (NDI) occurs when the renal tubule response to vasopressin (ADH) is weakened, resulting in the excretion of large volumes of dilute urine.

As the renal tubules do not respond to vasopressin (antidiuretic hormone) and are unable to reabsorb filtered water back into the body, the kidneys create a high volume of dilute urine in nephrogenic diabetes insipidus.

Nephrogenic diabetes insipidus (NDI) can be inherited or develop as a result of disorders that impede the ability of the kidneys to concentrate.

Therefore, the correct option is 2 Nephrogenic diabetes insipidus.

That is, the most likely cause of his polyuria is nephrogenic diabetes insipidus.

6 0
2 years ago
What chemical reactions do monomers of lipids go through to form lipids?
Dmitrij [34]
Cellulose is one of the most abundant natural biopolymers. The cell walls of plants are mostly made of cellulose, which provides structural support to the cell. Wood and paper are mostly cellulosic in nature. Cellulose is made up of glucose monomers that are linked by bonds between particular carbon atoms in the glucose molecule.
Every other glucose monomer in cellulose is flipped over and packed tightly as extended long chains. This gives cellulose its rigidity and high tensile strength—which is so important to plant cells. Cellulose passing through our digestive system is called dietary fiber. While the glucose-glucose bonds in cellulose cannot be broken down by human digestive enzymes, herbivores such as cows, buffalos, and horses are able to digest grass that is rich in cellulose and use it as a food source. In these animals, certain species of bacteria reside in the rumen (part of the digestive system of herbivores) and secrete the enzyme cellulase. The appendix also contains bacteria that break down cellulose, giving it an important role in the digestive systems of ruminants. Cellulases can break down cellulose into glucose monomers that can be used as an energy source by the animal.
6 0
2 years ago
Which model of the atom is easiest to visualize
alexandr1967 [171]

Answer:

The Quantum Model of the Atom 1927

Explanation:

It is the most accurate model of the atom but I don't know about the easiest to visualise. Soz :(

8 0
3 years ago
1. Muscles move tendons attached to bone by performing an action called _______.
REY [17]

1. Contraction

2. Actin

3. Tendons

4. Epidermis

5. Dermis

6. Acne

7. A nerve signal from the brain arrives at the intersection of the nerve and muscle cells and releases acetylcholine from the neuron. This triggers chemical changes in the muscle cell involving ions, including Ca2+. Calcium triggers the thick filaments, made of myosin, to attach to the thin filaments, made of actin, in the muscle cell, and the myosin pulls the actin toward the center of the muscle cell. ATP causes the release of the actin fibers, allowing the muscle to relax and the process to begin again.

For Penn Foster.

5 0
2 years ago
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