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Brums [2.3K]
2 years ago
8

3 Peroxisomes are cellular organelles: A. with their own genome B. present only in protists C. without membrane OR D. collaborat

ing with the nucleus O E site of some oxidation reactions
Biology
1 answer:
VLD [36.1K]2 years ago
7 0

Answer:

E.site of some oxidation reactions

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Which statement best describes a cause and its effect during the process or muscle contraction?​
Alisiya [41]

Answer. The most appropriate statement that is explaining the effect and cause during muscle contraction is. “The release of calcium ions causes myosin and actin to attach to each other.” The activation of muscles helps in the generation of muscles that send out the signals to the neurons.

hope this helps

7 0
2 years ago
A scientist wants to begin making a DNA fingerprint, but she has only a very small DNA sample. What should her next that be?
KATRIN_1 [288]

its a  polymerase chain reactions

7 0
3 years ago
Read 2 more answers
Indicate whether the C-terminus (C) or the N-terminus (N) of each of the following proteins is expected to be located in the cyt
musickatia [10]

Answer:

The correct answer is - CNN.

Explanation:  

Protein modification or folding takes place in the endoplasmic reticulum. The Endoplasmic Reticulum modifies the amino acids according to their signal sequences and tail. The following case can help in indicating the C-terminus (C) or the N-terminus (N) of each of the following proteins-

A) the C-terminus would be placed in the cytosol and the N-terminus in the endoplasmic reticulum lumen after cleaving the N-terminal signal sequence.

B) The N -terminal is the positive end of the chain and as per the rule of positive inside it allows N terminal in the cytosol

( C ) Tail-anchored proteins always have their N-terminal bulk in the cytosol.

Thus, CNN would be the correct answer from the explanation given above.

3 0
2 years ago
Chief cells secrete inactive pepsinogen in order to prevent acid erosion inside of the chief cells. True or False
Vladimir [108]

Answer:

The statement is false.

Explanation:

At the base of the oxyntic gland, in addition to the parietal cells, the chief cells (peptic cells) are located, mainly in the lower half of the gastric glands, these cells have large basophilic zymogen granules, more prominent in the apical region and responsible of the secretion of pepsinogen proteolytic enzymes, a relatively constant fraction of pepsinogen I released by the chief cells is absorbed by the blood instead of passing into the gastric lumen. The stomach acid transforms pepsinogen into pepsin, which breaks down proteins in food during digestion.

3 0
3 years ago
Explain the reactions from
Sergio [31]

Explanation:

Glycolysis is the stage where glucose is broken down into 2 pyruvates (3 carbon compounds). This occurs in the cytoplasm and produces 2 ATP molecules. The pyruvates enters the mitochondria and enters the link reactions where it combines with co enzyme A (CoA). Decarboxylation ( removal of CO2) and dehydrogenation (removal of H) occurs here. Since CO2 is removed from the pyruvate it means a carbon is removed. This produces a 2 carbon compounds called acetyl. The acetyl compound is what combines with the CoA to form a compound called acetylCoA. This compound then enters the Krebs cycle.

The CoA co enzyme leaves and the acetyl reacts with a four carbon compound called oxaloacetate. This then forms a 6 carbon compound compound called citrate. A series of dehydrogenation and decarboxylation reactions occur to convert the 6 carbon compound back to oxalaoactate( the 4 carbon sugar). An ATP molecule is formed during one spin of the Krebs cycle.

The electron transport chain is where the reduced NAD (formed from dehydrogenation in glycolyisis, the link reactions and Krebs cycle) and Reduced FAD ( formed from dehydrogenation in the krebs cycle). molecules pass along a series of electrom carriers where they release energy that will be used to make ATP. Oxygen is the last electron carriers

I tried to sum it up as best as possible. If you want in detail explanations of each then I can explain it also.

6 0
3 years ago
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