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3 years ago

How does a catalyst work

2 answers:

8 0

A catalyst works by providing an alternative reaction pathway to the reaction product. Furthermore the rate of reaction is increased.

Olegator [25]3 years ago

5 0

Answer: By increasing the rate of reaction by lowering the activation energy.

Explanation:

A catalyst can be defined as the substances that can increase the rate of reaction by lowering the activation energy. This saves more energy for the reaction to take place.

The rate of reaction can be increased by several factors such as temperature, pH and catalyst.

Some of the catalyst are: Enzyme, molybdenum.

You might be interested in

If one strand of DNA is CAGGTTACG, the opposite strand is

aliina [53]

The correct answer is a - GTCCAATGC

According to base pairing rules, in DNA G will always pair with C and A will always pair with T.

These letters represent nucleotides. Nucleotides are the building blocks of nucleic acids namely DNA and RNA.

A denotes the nucleotide called Adenine

C denotes the nucleotide called Cytosine

G denotes the nucleotide called Guanine

T denotes the nucleotide called Thymine.

In RNA, there is slight difference in base pairing. Since RNA never has Thymine in its structure, the thymine has been replaced with Uracil. Therefore in RNA, Adenine will pair with Uracil.

3 0

3 years ago

How do changes in nutrient levels affect the structure of aquatic food webs?

vodka [1.7K]

ANSWER:

The effects of increasing or decreasing the nutrient levels in an aquatic food webs is described in the explanation.

Explanation:

If the nutrient levels in an aquatic food web increase moderately then it will result in increased production of the primary producers and the consumers.

But if the nutrient levels are increased excessively, like in eutrophication, then the increased level of nutrients will result in overproduction of the consumers like fishes, etc. Hence, there will be a scarcity of resources like oxygen in the water to support them and this will lead to a decline in biodiversity of the aquatic food web.

If the nutrient levels are decreased, then there will be competition for resources among the species which will ultimately lead to the decline of some species from the aquatic food web.

3 0

4 years ago

Suppose that in unicorns, two autosomal loci interact to determine the type of tail. One locus controls whether a tail is presen

Nina [5.8K]

Explanation:

As you can see in the picture below, this is a dihybrid cross with a twist.

We can accomplish that mutually parentages are heterozygotes for both characters because the genotypes are

9 unicorns with curly tails (shown in green)

3 with straight tails (shown in red)

3 curly tales trait carriers with no tail (shown in dark blue)

1 straight tail trait carriers with no tail ( shown in light blue)

If this was an ordinary case of the dihybrid cross, we would get a 9:3:3:1 phenotype ratio.

However, since the first trait, the presence of the tail, is affecting the other trait, the trait texture, the ratio is altered.

$\frac{1}{4}$ of the offspring (genotypes tt C_ and tt SS) has no tail, therefore we cannot observe the texture of the tail (some of the tailless individuals have Curly alleles -blue squares marked with green, some of them have Straight alleles -blue square marked with red ).

Therefore, the altered ratio is $\frac{1}{2}$ curly tails, $\frac{1}{4}$ straight tales, $\frac{1}{4}$ tailless

6 0

3 years ago

Which element cycles through both photosynthesis and respiration? A magnesium B nitrogen C oxygen or D sodium

34kurt

Pretty sure the answer is oxygen, as it is produced in photosynthesis and consumed in respiration.

7 0

3 years ago

2. A hypothesis is an educated guess based upon observation. It is an explanation of a single event based upon what is observed.

uranmaximum [27]

A law is supported by scientific evidence that is reproducible, whereas a hypothesis is simply a guess that can be confirmed or refuted by an experiment.

<h3>What exactly is a hypothesis?</h3>

A hypothesis is a guess based on a large amount of background information. If only five trees survived, they may have received more light than the other five.

In that case, one will devise an experiment in which the same plant is randomly assigned to different treatment groups with varying degrees of light, and the rate of growth of each group is compared.

Thus, a law is supported by scientific evidence that is reproducible, whereas a hypothesis is simply a guess that can be confirmed or refuted by an experiment.

For more details regarding hypothesis, visit:

brainly.com/question/17173491

#SPJ1

4 0

2 years ago