Which of the following is an example of how enzymes are catalyst?


A. Enzymes can alter the free energy change (∆G) for a chemical reaction.

B. Enzymes increase the free energy of the reactants to make the reaction go faster.

C. Enzymes provide the activation energy for the reactions they facilitate.

D. Enzymes lower the activation energy so that reactants absorb enough energy to reach transition state.

Answer:

I believe the answer is A

Explanation:

Answer:

Without the cell membrane, any chemical would be allowed to enter. Membranes are very important because they help protect the cell. Materials move across the membrane by diffusion. Diffusion is the movement of oxygen, nutrients, and other molecules.

Explanation:

Answer:

A. How your body uses oxygen

Explanation:

Aerobic literally means "with oxygen", and refers to the use of oxygen in muscles' energy-generating process. Aerobic exercise includes any type of exercise, typically those performed at moderate levels of intensity for extended periods of time, that maintains an increased heart rate.

The correct answer to your question "What does aerobic refer to?" is: A. How your body uses oxygen.

Aerobic reaction can be defined as a biological and chemical reaction that occurs in the presence of oxygen.

On the other hand, an anaerobic reaction refers to a biological and chemical reaction that doesn't require oxygen such as glycolysis.

Some examples of an aerobic reaction include the following:

In conclusion, aerobic refer to how the human body uses oxygen such as during physical exercises e.g running, walking, jogging, etc.

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Answer:

binomial nomenclature is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages

Explanation:

good luck! hope this helps

Answer:

Explanation:

A

Answer:

B) Hydostatic

Explanation:

Hydrostatic skeletons are found in invertebrate organisms, it means the skeleton is fluid filled, these are common in simple organisms. Endoskeletons are in vertebra animals, humans have an endoskeleton. Exoskeletons are in insects, which are invertebrates but the bone-like material is hard. I would chose Hydrostatic since it is filled with a liquid.

Answer:

Microorganisms which causes diseases is known as pathogen.

Explanation:

PATHOGEN -: Pathogens are agents that live in a host and are responsible for causing infections or diseases in that host, such as a human being. Microorganisms such as bacteria , viruses , fungi or protozoa, or other organisms such as parasites, worms and even contagious proteins such as prions, may be pathogens.

Viruses: Viruses are micro-organisms that are composed of nucleic acid and covered by a protein sheet. A lipid (fatty) outer layer is also present in some viruses. Enveloped viruses are called these. Non-enveloped viruses are considered those that do not have this lipid outer layer. Only inside their host's living cells are viruses able to replicate. EXAMPLE -:  Influenza (influenza A and B viruses) and the common cold (rhinovirus) are examples of infections caused by viruses.

Bacteria: These are microorganisms which have a nucleus containing DNA surrounded by a cell wall or membrane. Among bacteria, the composition of the cell wall differs. If they are able to access food and nutrients, they have a more complex structure than viruses and can multiply beyond the host. EXAMPLE -: Foodborne diseases can be caused by bacteria such as Salmonella enterica and Escherichia coli, while Staphylococcus aureus can cause skin infections.

Fungi: Fungi are single-celled or multicelled species that can live outside a host. They consume food and nutrients created after digestive enzymes have been secreted into their atmosphere. example-: The foot of the athlete (Trichophyton mentagrophytes) and yeast infections (Candida albicans) are examples of infections caused by fungi.

Prions: These are infectious agents made up entirely of proteins and capable of transferring to other prion proteins their infectious properties. EXAMPLE -: Extreme infectious diseases such as bovine spongiform encephalopathy (mad cow disease) and variant Creutzfeldt-Jakob disease (vCJD) can be caused by prions.

Protozoa: Protozoa are single-celled organisms that display habits that are similar to animals, such as the ability to travel through water, and are capable of harvesting other microorganisms. They are able to live outside the human host, but when they enter the human host and spread, causing infections and diseases, they may also be parasitic in nature. EXAMPLE -: Malaria and giardia include common infections

Answer:

Distance is 500 m and displacement is 0.

Explanation:

Distance traveled by an object is equal to the total path covered during the entire journey. Displacement of an object is the shortest path covered.

In this case, we need to find the distance and the displacement of the race car drivers in the  Indy 500 m race in a circular path.

In a race, the object must reach the initial position after some time. It means that the final and the initial position is the same. As a result, the shortest path covered i.e. displacement of the car is equal to 0. On the other hand, total traveled distance is 500 m.

Answer:

Position 4

have a good day

Answer:

The answer is D.

Explanation:

Feel free to mark brainliest.

Answer:

The cones provide protection to seeds from animals and the environment.

Explanation:

Cones attract animals that will help with plant reproduction. (no, because no animals are attracted to pine cones)

Cones are used to as food source for the plant. ( no because food is not stored in it, the seeds are, plants don't eat their own seeds)

The cones catch rainwater for the tree to use. (no! which tree is going to suck water from their cones?)

Answer:

Biology is the study of living things.

Chemistry is the study of elements and their properties, reactions, bonds...

Explanation:

Answer:

Graphite

Explanation:

Answer:

Electron

Explanation:

I got a 100 on my test trust me its Electron

The subatomic particles which determine an element's chemical properties are electrons. Electrons are present in the specific orbitals in an atom. Thus, the correct option is B.

An electron is a negatively charged subatomic particle. An electron can be either bound to an atom or in free state. An electron which is bound to an atom in an orbital is one of the three types of particles present within the atom. Other primary subatomic particles which are present in an atom include protons and neutrons. Together, electrons, protons and neutrons form the nucleus of an atom.

Electrons were discovered by J.J. Thomson in 1897. The mass of an electron is 9.109×10⁻³¹ kilograms and the charge is −1.602176634×10⁻¹⁹ C.

Therefore, the correct option is B.

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Answer:

Some differences between primary and secondary succession are:

-Secondary succession happens on a previously existing community that has been cleared.

Another difference would be:

-Pioneer species for secondary succession are adapted differently- they grow quickly, can disperse quickly and have a short life span

And finally:

-Primary succession develops a new community from scratch

Not sure if you were looking for this, sorry if this is not correct.

Explanation:

What you need to understand first, is the digestive system, after that, you'll probably be able to understand not only sugar, but other components of your food too.

    It all starts at your mouth, you are going to do a lot of the job for the food to get to your stomach by chewing it. After it gets to your stomach, the digestion will do its job as the pH there is less than 7. After this process, the food is going to your intestine, and then, it's right here, that the sugar/carbohydrates you ate are going to get into your blood. After this, sugar is going to be used to create energy for your cells and body to work properly, with that, sugar is consumed and you can start the process all over again.

Answer:

Here are several things you can do!↓

Explanation:

Government legislation.

Nature preserves.

Reducing invasive species.

Habitat restoration.

Captive breeding and seed banks.

Research.

Reduce climate change.

Purchase sustainable products.

Answer and Explanation:

Protein is one of the most important molecules in our organism, being present in the composition of all elements, in addition to participating in several metabolic processes. This importance creates the need to study this molecule, however, to study it it is necessary to know the composition chemistry and the levels of structure it presents.

The chemical composition of proteins is related to amino acids, since protein is formed by them. In this case, we can say that the proteins have the same composition as the amino acids containing carboxylic acid and different amino groups, which is what determines the name and function of the amino acid.

In addition to chemical composition, the structure levels of proteins are extremely important, as they only function at a specific structural level. As for these levels, proteins can have a primary structure (there are more than two amino acids organized in a linear row), a secondary structure (when the primary structure turns into a helix species), a tertiary structure (formed by a more intense folding of the secondary structure providing the appearance of helices and leaves) and quarternary structure (when several tertiary structures are joined, allowing folding at the three-dimensional level. This is the functional structure of the protein).

Answer: True

Explanation:

Answer:

1. Scientific question: Can detergent affect flower growth?

2. IV: The soap used in the study  

3. DV: Flower growth  

Explanation:

A scientific question is a well-sustained question about a given phenomenon of the real world which can be answered by experimental and/or observational procedures. A good scientific question must be testable and lead to falsifiable hypotheses. The dependent variable is the variable that is being measured in the experiment, (i.e. it is being affected by the experimental procedure). On the other hand, the independent variable is the variable that isn't changed by the other variables that are being measured in the experiment.

Answer:

Homeostasis is the way animals maintain a stable internal balance in their body. It allows animals to function in the changing external conditions surrounding their body. Homeostasis is important to Chinook salmon because they depend on the functioning of its cells to help its survival and ability to reproduce.

Explanation:

In order to maintain homeostasis, the animal should be able to respond to environmental conditions.

The word homeostasis can be defined as the presence of a state of equilibrium in a given biological system.

In conclusion, in order to maintain homeostasis, the animal should be able to respond to environmental conditions.

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Answer:

Mutations in the gene pool

Explanation:

Answer:

2) an increase in temperature from 70°C to 80°C

Hope this helps!

Answer:

hope the answer helped you

Explanation:

absolute age(true age) The age of a geologic phenomenon measured in present Earth years, rather than its age relative to other geologic phenomena (compare relative age)

Answer:

Genetic variation is the difference in DNA among individuals or the differences between populations. There are multiple sources of genetic variation, including mutation and genetic recombination.

Explanation:

Explanation:

Genetic variation refers to diversity in gene frequencies. Genetic variation can refer to differences between individuals or to differences between populations. Mutation is the ultimate source of genetic variation, but mechanisms such as sexual reproduction and genetic drift contribute to it as well.