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artcher [175]
3 years ago
14

Specialized proteins that act as a catalyst for chemical reactions are

Biology
1 answer:
IRISSAK [1]3 years ago
8 0
Fundamental task of proteins is to act as enzymes—catalysts that increase the rate of virtually all the chemical reactions within cells. Although RNAs are capable of catalyzing some reactions, most biological reactions are catalyzed by proteins.
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water enters a long vurvykar tube at a eman tempreture taht is lower than the tine surface temperatire. The curve that most clos
Alex

Answer:

The curve that most closely describes the mean tempretire of the fluid as a function of position  along the tube.

Explanation:

Hello. Your question is presenting very confusing words, however, through the context of the question as a whole, it is possible to see that you are saying that the water that enters a circular tube has a lower temperature than the temperature presented by the surface of the tube . In this case, if you are going to present a graph about this, it is important that this graph presents a curve that shows the relationship between the average water temperature as a function of the position of the water along the tube. This graph will be similar to the graph shown in the attached figure below.

3 0
3 years ago
TIME REMAINING 51:02 Between 1940 and 1970 most scientists were already concerned about global warming. Please select the best a
Iteru [2.4K]

Answer:

False

Explanation:

Most scientists were not yet concerned about global warming. This was because the major issue during the period between 1940 and 1970 was global cooling with little or no attention on global warming.

However things started to change due to more pollution as a result of technological advances. Global warming started becoming a concern between 1970s and 1990s because of the increase in steady surface temperature.

3 0
3 years ago
Which statement represents a characteristic of an ecosystem that is not likely to sustain itself
yKpoI14uk [10]

plants cannot sustain themselves because they need dirt for fertilizer the sunlight to grow in water for hydration. they also need homeostasis for a heathy balance

6 0
3 years ago
Please select the word from the list that best fits the definition
Makovka662 [10]

Answer:

Momentum.

Explanation:

<h3>the measure of how difficult it is to stop a moving object; equals the product of mass and velocity.</h3>
4 0
3 years ago
Pancreatic cells, which secrete a large amount of digestive enzymes, are labeled with radioactive leucine and then chased for se
LiRa [457]

Answer:

Option-C

Explanation:

A pulse-chase experiment which is used to study the cellular process taking place in the cells. This uses the labelled molecule which is incorporated into the cellular pathway and then the unlabeled molecules are used over time to determine how much time is required by the unlabeled molecule to replace the labelled molecule.

In the given question, the pancreatic cell which secretes the digestive enzyme known as the acinar cell is labelled with the leucine and then used unlabeled leucine.

When observed after three hours, the black spots will appear on the exterior of the cell as the protein has been synthesised by the ER and now has been secreted from the cell.

Thus, Option-C is the correct answer.

5 0
3 years ago
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