1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lana66690 [7]
3 years ago
15

Cyanide (C≡N−) blocks complex IV of the electron transport chain. Suggest a hypothesis for what happens to the ETC when complex

IV stops working. Your hypothesis should explain why cyanide poisoning in humans is fatal.
Biology
1 answer:
leva [86]3 years ago
6 0

Answer:

Cytochrome iv allow the transfer of electron from cytochrome a₃ present in cytochrome iv that reduce oxygen on mitochondrial membrane for ATP synthesis.  

Hypothesis: cyanide blocks the cytochrome iv, therefore, oxygen will not be utilized which is important to derive energy for the cell to live.

So binding of cyanide inhibit the electron transfer to the oxygen atom, therefore, the electron transport chain will be blocked at the terminal position. This blockage does not allow the use of oxygen atom to derive energy for the cell and result in the rapid death of the cell.

So cyanide poisoning in humans is fatal because it blocks ETC by restricting the transfer of electron from cyt iv to oxygen and ultimately blocks ATP synthesis which is required by the cell to live.

You might be interested in
Which pulse point had the strongest pulse? the weakest pulse? why do you think this happened?
butalik [34]

The Pulse point with the greatest amplitude is the Common carotid artery and the pulse point with least amplitude is dorsalis pedis artery. Pulse is the pressures that alternate surges (expansion and recoil) in an artery that happens with each contraction and relaxation of the left ventricle.  So when the dorsalis pedis had this low amplitude the BP decreases and smooths out when the movement of the blood go farther from the due to elasticity of arteries. Then there is an elevation of blood pressure when you exercise because the greatest amount of cardio output and peripheral resistance.

8 0
3 years ago
Is key lime pie considered a lipid?
allsm [11]
Lipids are any of a group of organic compounds that are greasy to the touch, insoluble in water, and soluble in alcohol and ether: lipids comprise the fats and other esters with analogous properties and constitute, with proteins and carbohydrates, the chief structural components of living cells, so yes they are considered a lipid.
4 0
3 years ago
In anatomical, directional terminology, the esophagus is _________ to the mouth.a.Superiorb.Lateralc.Mediald.Posterior
Margaret [11]

Answer:

In anatomical directional terminology, the esophagus is <u>posterior</u> to the mouth (option d).

Explanation:

The esophagus is a tubular organ that is part of the digestive system and its function is to carry food from the mouth to the stomach. The anatomical relationship of the proximal end of the esophagus, with respect to the mouth, is posterior and inferior, its distal end also being located above the stomach.

This anatomical relationship allows the direction of food movement to be mouth → esophagus → stomach.

4 0
3 years ago
Mammals store Extra glucose in the form of a compound called glycogen. What molecule supplies the energy needed to join glucose
bekas [8.4K]

ATP is the molecule that supplies the energy needed to join glucose molecules together to form a molecule of glycogen.

Explanation:

ATP is the energy currency of cells. It is used to power all non-spontaneous biochemical reactions in the body including the conversion of glucose to glycogen.

Glycogen has a higher Gibbs free energy than glucose (because it lowers entropy) meaning you need energy to convert glucose to glycogen. This reaction does not occur spontaneously because of it akin to ‘climbing a hill’. ATP is involved in the condensation reaction of joining glucose molecules together into glycogen via glycosidic bonds.

Learn More:

For more on ATP check out;

brainly.com/question/414734

brainly.com/question/1312640

#LearnWithBrainly

4 0
3 years ago
What is the definition of andesitic composition ?
IceJOKER [234]
<em><u>Andesite:</u></em> 
<em>Is an extrusive igneous, volcanic rock, of intermediate composition, with anphanitic to porphyritic texture. In a general sence, it is the intermediate type between basalt and decite  and ranges from 57  to 63% silicon dioxide as illustrated inTAS diagrams.</em>
5 0
4 years ago
Read 2 more answers
Other questions:
  • Proteins are polymers made of amino acids.<br> true or false?
    12·2 answers
  • Sally wonders how much of a role genetics plays in determining her weight. she has heard about a gene, called ob, that codes for
    12·1 answer
  • The bones in the wings of a bat are the same as the bones found in the front paws of a raccoon. Their function is very different
    13·1 answer
  • A ___________________ is a multicellular haploid form and a ____________________ is a multicellular diploid form in a plant that
    11·1 answer
  • Which makes fast-moving water a greater force of erosion?
    8·2 answers
  • 01:04 An atom of carbon (C) forms covalent bonds with two atoms of axygen (O) to form carbon electrons of these atoms rearranged
    14·1 answer
  • In at least five (5) sentences summarize how humans are changing the carbon cycle?
    12·1 answer
  • This is the question I need help with.
    15·1 answer
  • What is the name of the project that had the goal of sequencing all of the bases that make up human DNA?
    15·1 answer
  • Solution to improve the human diet based on the concept of anaerobic respiration​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!