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Arisa [49]
3 years ago
5

An enzyme speeds up a chemical reaction in the cell, but can only be used once.

Biology
1 answer:
frutty [35]3 years ago
4 0
This is false.

Enzymes are actually made up by proteins which can act as a biological catalysts that can speed up chemical reactions. Each of them has an active site, its like a concaved space, and it can bind into specific substrates then combine them to form products.

However, active sites will not be changed and they can bind into more substrates again and again. Just note that the active site may only be changed due to the unfavorable temperature or pH, but otherwise they can be used again and again
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When testing for hiv, a/an test produces more accurate results than the elisa test?
34kurt

When testing for hiv, an Antibody screening test produces more accurate results than the elisa test.

<u>Explanation:</u>

An Antibody screening test is the best test available to diagnose a HIV infected person by spotting a particular protein in the infected blood sample. HIV a sexual borne disease is highly contagious and a life taker. The earlier it is been deducted through the antibody screening test and the treatment can be given to expand your life cycle.

ELISA test is a normal test that is done collecting the blood sample of the patients and when known an ELISA test is done on an individual it defers and shakes the person scary to death as it takes a minute for the test but a long wait to announce the result .

4 0
3 years ago
How many gigatonnes of carbon are stored in each of the following locations?
leonid [27]

a)121 million gigatons or 121 million billion metric tons" of carbon).

B)The ocean, with around 38,000 gigatons

c)60 gigatons of carbon

3 0
3 years ago
Which is part of the endosymbiont theory? Autotrophic prokaryotes evolved into mitochondria. Eukaryotes engulfed photosynthesizi
MrRa [10]

Answer:

The correct answer is eukaryotes engulfed photosynthesizing prokaryotes

Explanation:

The endosymbiotic theory or symbiogenesis is an evolutionary theory that traces the origin of eukaryotic cells from prokaryotic organisms. It explains that some of the organelles (Mitochondria and Chloroplasts) in eukaryotic cells evolved from free-living prokaryotic microbes which were ingested or engulfed. The ingested prokaryotic cells survived within the organism and developed a symbiotic relationship.

According to the theory, chloroplasts was formed when eukaryotes engulfed photosynthesizing prokaryotes and mitochondria was formed when bacteria capable of aerobic respiration were engulfed.

6 0
3 years ago
A person who has cerebrospinal fluid draining from the ear probably has a fracture of the __________ bone. occipital zygomatic f
Tanzania [10]

A person who has cerebrospinal fluid draining from the ear probably has a fracture of the temporal bone.

<h3>What is Cerebrospinal Fluid?</h3>

All animals have cerebrospinal fluid (CSF), a transparent, colorless bodily fluid that is present in the tissue that covers their brains and spinal cords.

Specialized ependymal cells in the choroid plexus of the brain's ventricles create CSF, which is then absorbed in arachnoid granulations. About 125 mL of CSF are present at any given moment, and 500 mL are produced daily. The CSF protects the brain inside the skull mechanically and immunologically by acting as a shock absorber, cushion, or buffer. The cerebral autoregulation of cerebral blood flow is another essential role played by CSF.

The ventricular system and subarachnoid space, which are located surrounding and inside the brain and spinal cord, respectively, are occupied by CSF.

Learn more about CSF with the help of the given link:

brainly.com/question/7142724

#SPJ4

5 0
2 years ago
Which is one way that scientists ensure that data is reliable?
castortr0y [4]
Hi!

One of the ways we make sure data is reliable is by repeating and replicating experiments.

If we consistently get the same results, then this means that the data is both credible and reliable.

Hopefully, this helps! =)
8 0
3 years ago
Read 2 more answers
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