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V125BC [204]
3 years ago
11

How do catalysts increase the rate of a chemical reaction

Biology
2 answers:
Rus_ich [418]3 years ago
7 0
<span>lowering the activation energy needed.</span>
RUDIKE [14]3 years ago
3 0

Answer:

Catalyst can decrease the activation energy of an reaction.

Explanation:

Catalyst are the substances that can increase the speed of a chemical reaction without itself undergoing any change during the reaction. Activation energy is the minimum amount of energy required to start a chemical reaction.

Catalyst decreases the activation energy of the reactions so that reactants can be converted into products in less time. Catalyst forms intermediates during the reaction that requires less activation energy to convet into the product.

Thus, catalyst increases the rate of a reaction by decreasing the activation energy.

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“The genetic code is universal.” This statement means that
Lemur [1.5K]

The correct answer is B

The genetic codes language in all living organisms is the same. This is to say that the molecules of life namely DNA and RNA share the same make up in all living things .

There are five types of nucleotides in nature which are the building blocks of RNA and DNA and these are the same in all living organisms . These nucleotides are Adenine, Thymine, Guanine, Cytosine and Uracil.

According to base pairing rules, in all DNA molecules Adenine will always pair with Thymine while Guanine will always pair with Cytosine.

This  rule is the same with RNA except that here Thymine is replaced with Uracil.  Otherwise the base pairing rule applies in all living organisms, that is to say it is universal.

  


4 0
3 years ago
Cell organelle we do comparing organelles to jobs in a school:
vampirchik [111]

Answer:

1. Mitochondria(Pretty sure)

2. Cytoskeleton

3. Cell Membrane

4. Nucleus

5. Chlorophyll/Chloroplasts

MOAR POINTZ

8 0
3 years ago
Which is the main material in a solar cell?
Mekhanik [1.2K]

Answer:

C.Silicon

Explanation:

By far, the most prevalent bulk material for solar cells is crystalline silicon (c-Si), also known as "solar grade silicon". Bulk silicon is separated into multiple categories according to crystallinity and crystal size in the resulting ingot, ribbon or water.

4 0
2 years ago
Read 2 more answers
A Cheetah hunts,captures,and consumes a gazelle. This illustrates
Stells [14]

Answer:

Energy processing

Explanation:

In the food web, the grass is the producer of energy gazelle is the consumer, the cheetah is the secondary consumer.

What is a food web?

In the ecological community, the food web is a graphical representation of the flow of energy between producers of energy and consumers.

it is basically an interconnected food chain.

4 0
3 years ago
Which of the following forms of energy is correctly paired with its definition?
kumpel [21]

Answer:

\huge\boxed{\sf Thermal \ energy}

Explanation:

Corrected definitions:

<h3>Potential energy:</h3>
  • The energy possessed by a body due to its position is called Potential Energy.
<h3>Kinetic Energy:</h3>
  • The energy possessed by a body due to its motion is called Kinetic Energy.
<h3>Chemical Energy:</h3>
  • The energy possessed by the body due to its atoms and molecules is called chemical energy.
<h3>Thermal Energy:</h3>
  • The energy in a system due to its temperature is called Thermal Energy.

\rule[225]{225}{2}

7 0
2 years ago
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