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velikii [3]
3 years ago
13

How are atoms, elements and compounds related ?

Biology
1 answer:
strojnjashka [21]3 years ago
8 0

Atoms are the most basic units

Elements are specific types of atoms

Compounds are composed of more than one type of element and are held together by chemical bonds

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Why does the word anitibotic suggest that these medications would be ineffective against viruses
finlep [7]

Antibiotics are ineffective against viruses because viruses do not have cells. Viruses are infectious agents that live within the cells of other living things. Antibiotics work by breaking down the cell walls of bacteria or interfering with the bacteria's ability to repair its cell's DNA, according to How Stuff Works

7 0
3 years ago
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Why do we say that Sudan III is an indicator solution for lipid?
trasher [3.6K]
<span>If Sudan III is added and a lipid is present, you would expect to see a red-stained oil layer on the surface</span>
4 0
4 years ago
Despite the human genome being significantly larger than the genome of bacteria such as E. Coli, it does not take a human cell s
ICE Princess25 [194]

Answer:

Rapidly and Accurately

Explanation:

As an example, eukaryotic human DNA replicates at a rate of 50 nucleotides per second.

Replication occurs so quickly because multiple polymerases<em>, or think: enzyme+polymer=polymerase,</em> can synthesize<em>, or combine or fuse,</em> two new strands at the same time by using each untwined strand from the original DNA double helix as a guide.

DNA replication is so much faster than bacteria replication because it's extremely difficult to replicate DNA accurately, as well as copying molecules that tightly complexed with histones in nucleosomes, which work together to form chromatin, which is the material that chromosomes are composed of, and it's further composed of protein (histones), DNA, and RNA.

Therefore, the reason for human cells taking significantly less time to replicate its genome is <u>accuracy</u>.

6 0
3 years ago
In the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, the lactate is excreted into the blood and retur
Fantom [35]

Answer: Cori cycle  consumes more energy,it expended 4ATPs, therefore with poor efficiency.

1 Glyceraldehyde 3-phosphate dehydrogenase.

it is an enzyme which  functions in Glycolysis only, to breakdown the 6th. step of of subtrate phosphorylation of glucose.

2. glucose-6-phosphotase.

This is the enzyme that works in gluconeogenesis only to intiaate its  first step. it hydrolyse glucose-6-phosphate , to generate glucose and phosphate.

Alcohol dehydrogenase

This enzyme does not play any role with both pathways.Rather it catalysis the oxidation of primary and secondary alcohols to aldehyde and ketones. The reaction involves reduction with NADH+

phosphoenopyruvate carboxykinase

functions in the gluconeogensis pathways  for conversion of oxaloacatate to phosphoenopyruvate and CO2.

Phosphofructokinase-1

function as regulatory enzyme of glycolysis to convert  fructose-6-phosphate  and ATP hydrolysis to glucose 1, 6, bisphosphate and ADP respectively.

Phosphoglycerate mutase.

An enzyme involved in glycolytic pathway, it catalysed the 8th step of glycolysis.

Hexokinase- an enzyme of glycolytic pathway invloved in phosphorylation of glucose, to intiate the process of glycolysis.

Pyruvate dehydrogenase

This is an enzyme that converts pyruvate to acetyl Co-A.

therefore it plays no role in the two pathways, because glycolytic pathway ends with pyruvate production.

Explanation:

8 0
3 years ago
Which list contains only plant phyla?
enyata [817]

The option with mosses, ferns, conifers, flowering plants is the group of phyla which contains only plants.  

Explanation:

Mosses, ferns, conifers, and flowering plants are the four basic groups of the plant kingdom.

Mosses of Bryophyta are primitive non-seeded non-vascular plants which lacks true shoot and root structures.  

Ferns of Pteridohyta are vascular plants with a true root and shoot system but without flowers or seeds

Conifers are woody perennial gymnosperms which are cone-bearing vascular and seeded plants.

Flowering plants are angiosperms and fruit bearing and seed producing plants.  

The annelids, chordates, cnidarians, mollusks, arthropods, and echinoderms belong to kingdom animalia.

8 0
3 years ago
Read 2 more answers
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