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babunello [35]
3 years ago
10

Which statement best explains how enzymes speed up chemical reactions?

Biology
2 answers:
motikmotik3 years ago
8 0
Enzymes lower the activation for chemical reactions so they get a  faster *Jump Start.* Once this happens these reactions can happen a lot faster than similar reactions or the same reaction
kobusy [5.1K]3 years ago
7 0

Answer: The correct option is A) Enzymes lower the activation energy of a reaction.

Enzymes are also called as catalyst. They increase the rate of reaction by lowering the activation energy of the reaction. This means that they speed up the chemical reactions by doing so.

Activation energy is the minimum amount of energy required by a reactant to form an activated complex in order to initiate the chemical or nuclear reaction.

Thus, enzymes speed up the chemical reactions by lowering the activation energy.

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Select the correct days. rachel and her team will conduct canopy fogging to monitor the insect population in an area. looking at
Romashka [77]

Monday is the best day since there is no wind. To conduct canopy fogging, the ideal conditions would be windless and calm, so as not to disrupt the fogging operation.

<h3>What is canopy fogging?</h3>

During fogging, a petrol-powered fogging machine is used to disseminate a non-hazardous natural pyrethroid pesticide into the forest canopy.

The missing image of the question is attached below.

As per the image description, Monday is the best day since there is no wind. To conduct canopy fogging, the ideal conditions would be windless and calm, so as not to disrupt the fogging operation.

Thus, Rachel should conduct canopy fogging on Monday according to the given scenario.

For more details regarding canopy fogging, visit:

brainly.com/question/10435245

#SPJ1

3 0
2 years ago
WILL GIVE A BRAINLEST
babymother [125]
The answer is nucleus
7 0
3 years ago
Research by social scientists suggests that it takes ____ percent of the population of a community, country, or the world to bri
Lady bird [3.3K]

Answer:

<em>The correct option is B) 5-10%</em>

Explanation:

We have seen and depicted various scenarios where we see how different changes arise and dominate the world. Social scientists suggest that as low as 5-10% people of a population are enough to bring about a change because people tend to copy what others are doing. Same goes for countries of the world. Each new popular technique which is learnt by one country tends to become popular and learnt by other countries. For example, the usage of a social app starts with a few members of a population using it and with time it becomes popular in the whole world.

7 0
3 years ago
Define the 3 signals for activation and the 3 outcomes of the complement system.\
sp2606 [1]
* More than 40 proteins and glycoproteins involved in the complement system are synthesized by the liver, macrophages, epithelial cells, they are present in the blood in plasmatic form, membrane, some have an enzymatic activity, regulator or membrane receptorThese are elements of the humoral innate immune response, they fight infections, purify immune complexes and apoptotic bodies.
<span>There are indeed three ways to activate the complement:</span>
Classical pathway: Activated by Immunoglobulins in immune complexes, aggregated Immunoglobulins, DNA, CRP, apoptotic bodies .......it involves nine fractions, starting with C1, then C4, C2, C3, to form a classical C5 convertase, then, activation of C5, C6, C7, C8, C9.

Alternative pathway: activated by polysaccharides (bacterial endotoxin), vascular wall poor in sialic acid, aggregated IgE ...C3b like is the first component in the alternate channel cascade, it will create an amplification loop, and form an alternative C5 convertase.

Lecithin pathway: Activated by mannose, fucose (carbohydrate of microorganisms)The first component is the complex MBL / MASP1 / MASP2: "mannose-binding protein": works according to the same principle as the complex C1 of the classical way (MASP2 cleaves the C4 and the rest of the cascade is equivalent to that of the classical way).

the three ways have the same outcome: A C5 convertase (formed by one of the pathways) cleaves C5 into C5a and C5b: C5b is deposited far from other fractions on the antigenic surface. The fixation of C5b in the cell is followed by that of C6, C7, C8, and C9 (9 molecules of C9): formation of the membrane attack complex (MAC) ==> Death of the cell by osmotic shock
8 0
3 years ago
What is a stimulus and give five examples of a stimulus
Rashid [163]

Answer: Stimulus is something that causes a reaction, either positive or negative in the body of an organism. Examples includes, HEAT, COLD, PRESSURE, PAIN

Explanation:

5 0
3 years ago
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