Answer:
Increase in [NAD+] inhibits Pyruvate dehydrogenase kinase (PDH kinase)
Increase in [NADH] activates Pyruvate dehydrogenase kinase (PDH kinase)
Coenzyme A inhibits Pyruvate dehydrogenase kinase (PDH kinase)
Acetyl-co A activates Pyruvate dehydrogenase kinase (PDH kinase)
ADP inhibits Pyruvate dehydrogenase kinase (PDH kinase)
Explanation:
Pyruvate dehydrogenase kinase, PDK is an enzyme which acts to inhibit the activity of the enzyme pyruvate dehydrogenase by phosphorylating it using ATP. It mechanism of action is by catalyzing the phosphorylation of a specific Ser residue on the E1 subunit of the pyruvate dehydrogenase complex, rendering it inactive. By inhibiting the activity of the pyruvate dehydrogenase complex, PDK will decrease the oxidation of pyruvate to acpcetyl-coA and CO₂ in the mitochondria and increase the conversion of pyruvate to lactate in the cytosol.
Since pyruvate dehydrogenase complex is activated by either an increase in the concentration of one or more of ADP, NAD+ or CoA-SH, its inhibitor pyruvate dehydrogenase kinase is inhibited by ADP, NAD+, CoA-SH and pyruvate. However, PDK is activated by increase in the concentration of ATP, NADH and acetyl-CoA.
Therefore, the correct answers are:
Increase in [NAD+] inhibits Pyruvate dehydrogenase kinase (PDH kinase)
Increase in [NADH] activates Pyruvate dehydrogenase kinase (PDH kinase)
Coenzyme A inhibits Pyruvate dehydrogenase kinase (PDH kinase)
Acetyl-co A activates Pyruvate dehydrogenase kinase (PDH kinase)
ADP inhibits Pyruvate dehydrogenase kinase (PDH kinase)
What are unicellular organisms
with
examples
what is the function of plasma membrane
What is true for an energy resource with a low net energy?
Answer:
An energy resource with a low or negative net energy can have a hard time competing in the marketplace with other energy alternatives that have medium to high net energy yields unless it receives financial support from the government (taxpayers) or other outside sources.
Explanation:
- Eijiro <3
(I need help will make brainlyest) Which shows the correct order for the classification of species------------------
A) Domain, Kingdom, class, Order, Phylum, Family, Genus, and species-------------------------
B) Domain, Kingdom, Phylum, class, order, Family, Genus, and species--------------------------
C) Domain, Kingdom, Phylum, Class, Order, Family, Species, and Genus------------------------
D) Domain, Kingdom, Phylum, class, order, family, genus, species----------------------------------
HELP ME I NEED THIS DONE ASAP I DON'T HAVE TIME TO COMPLETE IT
50 points for whoever can do this. thanks! :)
(why is no one helping me??? Please!)
Answer:
The reason why no one is helping you is because you never asked a question
Explanation:
Did I get it right?
Answer:
the answer is nothing because u have no question for someone to answer and your point is nothing thats why no one is helping u
Explanation:
Ernest was looking at the following diagram of a cell. Which statement best explains how he should classify the cell?
A) He should classify the cell as a plant cell because it has a cell membrane.
B) He should classify the cell as an animal cell because it has a flagellum.
C) He should classify the cell as a plant cell because it has cytoplasm.
D) He should not classify the cell as either a plant cell or an animal cell.
Answer: Its d
Explanation:
Word Bank :
Condensation
Evaporation
Precipitation
Sublimation
Transportation
Using the works from the Word Bank, explain how the water cycle works. You must using complete sentences and using all of the words in the word bank. Please write you answer in 5 or more sentences using words used from the word bank.
Why were Domains added to the classification system after the time of Linnaeus?
Answer: With the development of powerful microscopes, scientists discovered many single-celled organisms that didn't fit into any of Linnaeus' kingdoms. As a result, a new taxon, called the domain, was added to the classification system.
Explanation:
How many proton , neutrons , and electrons are there barium ?
Answer:
137.327 atomic mass units
hope this helps
Explanation:
Answer:
56 protons, 81 neutrons and 56 electrons
Explanation:
hope that helps
state two functions of cell sap
Explanation:
The liquid inside the large central vacuole of a plant cell that serves as storage of materials and provides mechanical support, especially in non-woody plants. It has also a vital role in plant cell osmosis. (2) The cytosol, which is the watery fluid component of the cytoplasm.
What does inflammation lead to allow white blood cells to find the
infection and the release of cytokines?
If all of your cells have the same complete set of DNA why do different cells in different proteins
Why do we have different cells in our bodies if every cell has the same DNA?
The genome of a cell contains in its DNA sequence the information to make many thousands of different protein and RNA molecules. A cell typically expresses only a fraction of its genes, and the different types of cells in multicellular organisms arise because different sets of genes are expressed.
Which of the following does the frog represent? A. Primary producer B. Primary consumer C. Secondary consumer D. Decomposer
Answer:
Primary Consumer
Explanation:
Because it eat directly from the plants, which are primary producers
which of the following is an example of a complementary base pair in DNA?
a. A-G
b. T-C
c. A-U
d. C-G
Answer: d. C-G
Explanation:
DNA or deoxyribonucleic acid is a structure which is common in every living organism. The two strands of the DNA are held together by base complementarity between the nitrogenous bases these bases are held by hydrogen bonding. Adenine always pairs with thymine by a triple hydrogen bonding and cytosine is always forms a pair with that of guanine by a double hydrogen bonding. So, in this given situation cytosine or C will show complementarity with that of guanine or G in a DNA structure helping in linking the two strands of DNA to form a single integrated double helical structure.
Answer: D.c-g
Explanation:
Introduction : Scientists who study earth's layers are called geologists. Since they cannot see inside the earth, they use geological clues to help them. These clues are gathered from activities such as volcanoes and earthquakes. From these clues , geologists make inferences about what the inside of Earth actually looks like.
Question: Name the main layers of the Earth from the inside to the surface.
Answer:
Inner core, the outer core, the mantle, and the crust.
In terms of daily hassles, what age differences have been found?
A) Elderly individuals are much more strongly affected by daily hassles like
grocery shopping, doctor's appointments, and bad weather.
B) Young individual's daily hassles are more commonly related to money
problems, while older individual's daily hassles are more commonly due to
interpersonal conflict.
C) There are no significant age differences in either the frequency or cause of
daily hassles.
D) Older individuals are more likely to cope with daily hassles by becoming
angry, while younger individuals are more likely to respond to daily hassles by
withdrawing from others.
Answer:
Option B is the correct representation of differences in terms of daily hassles between the old and young people
Explanation:
As compared to old people, young people carry heavy burdens in terms of stress exposure. The daily activities such as house hold works, grocery shopping etc become a burden for young ones while the old age people are primarily affected by interpersonal conflicts, physical pain etc. Exposure of such daily hassles causes deterioration of health of both the young and old ones.
Hence, option B is correct
A series of Hfr strains that have genotype m+ n+ o+ p+ q+ r+ are mixed with an F− strain that has genotype m− n− o− p− q− r−. Conjugation is interrupted at regular intervals and the order of the appearance of genes from the Hfr strain is
determined in the recipient cells.
a. The order of gene transfer for each Hfr strain is:_________
b. What is the order of genes on the circular bacterial chromosome? For each Hfr strain, give the location and direction of the F factor in the chromosome
my brain can't process this lol
Which gland is enlarged in a young child and what is the main function of the hormone it secretes?
O A) Pineal – seasonality and salt resorption
B) Thyroid - metabolism
C) Thymus - immune system development
D) Pancreas - calcium storage
E) Adrenal – secondary sexual characteristics
Answer:
C
Explanation:
The thymus produces and secretes thymosin, a hormone necessary for T cell development and production. The thymus is special in that, unlike most organs, it is at its largest in children.
Answer:
The right answer is option C, thymus.
Thymus helps in immune system development. Its located behind sternum and helps in maturation of T lymphocytes.
what kind of animals are the best suited to life in a tundra
Answer:
Muskox, Arctic Wolf and Brown bear
Explanation:
Answer:
Tundra biome is also called as "treeless mountain tract" and the animals best suited to this type of climate are Arctic fox, Muskoxen, snow owl and polar bear.
What is the BEST description of the beginning of secondary succession?
(a)Soil is already present.
(b)It begins on rock formations.
(c)Plants are already present.
(d)Pioneer species appear.
Answer:
C,,, Plants are already present.
Explanation:
Answer:
Plants are already present.
Explanation:
Anyone Know?
i need fast
hello people of brainly
Answer:
a scientist should observe the natural world without changing or destroying it
Describe how the EMG signal (a voltage) arises from muscle activity
Answer: The EMG signal is a biomedical signal that measures electrical currents generated in muscles during its contraction representing neuromuscular activities. The nervous system always controls the muscle activity (contraction/relaxation). ... EMG signal acquires noise while traveling through different tissues. EMG signals are recorded by placing electrodes close to the muscle groups. When the muscle is activated, the length of the muscle decreases and the muscle, skin and electrodes move with respect to one another. At that time, the electrodes will show some movement artifacts
Explanation:
EMG signals are recorded by positioning electrodes close to the muscle groups. It is the arrangement that helps in the monitoring of EMG signals from muscle activity.
What do you mean by EMG signals?EMG signals may be defined as a biomedical signal that estimates electrical currents provoked in muscles during their contraction illustrating neuromuscular activities.
When the muscle is stimulated for any mechanism, the length of the muscle declines, which leads to the muscle, skin, and electrodes moving with regard to one another.
The EMG signals always arise from the electrical activity of the muscle fibers which are stimulated during the time of contraction.
Therefore, EMG signals are recorded by positioning electrodes close to the muscle groups. It is the arrangement that helps in the monitoring of EMG signals from muscle activity.
To learn more about EMG signals, refer to the link:
https://brainly.com/question/14787272
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all of the following about gastrin are true except
Answer: Gastrin is released into the lumen of the stomach.
plzz mark brainliest
Explanation:
A. homeotherm
would
QKeep its body temperature constant regardless of the environment.
B.Rely on the environment for its heat.
C.Allow its body temperature to fluctuate with the environment
Answer:
Keep its body temperature constant regardless of the environment. its A
Where does ocean salt come from?
a. macrofungi
b. sporophere
c. roomology
d. mycology
Ocean salt primarily comes from the evaporation of seawater, leaving behind the dissolved minerals and salts. It is not derived from macrofungi, sporophere, roomology, or mycology.
Ocean water contains dissolved salts and minerals, which are primarily derived from various sources such as weathering of rocks on land, volcanic activity, and underwater vents.
When the sun's energy heats the surface of the ocean, it causes the water to evaporate. Evaporation is the process by which water molecules escape into the atmosphere as water vapor.As the water vapor rises, it leaves behind the dissolved salts and minerals, which become concentrated in the remaining seawater.Over time, with continued evaporation, the concentration of salts and minerals in the remaining water increases.Eventually, the remaining water becomes supersaturated with salts, leading to the formation of salt crystals. These crystals can take the form of various salt compounds, such as sodium chloride (common table salt) and others.These salt crystals may precipitate and settle at the bottom of the ocean or accumulate in saltwater bodies, such as salt flats or salt pans.Therefore, ocean salt is primarily a result of the evaporation of seawater, concentrating and leaving behind dissolved salts and minerals. It is not derived from macrofungi, sporophere, roomology, or mycology.
For more such question on evaporation
https://brainly.com/question/20459590
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(3)
2.1
2.2
23
Provide labels for structures A, B and
State THREE functions of D
Fertilisation usually takes place at Y. Why wil
a blockage at X
2.3.1 Prevent fertilisation at Y
2.3.2 Not necessarily lead to infertity
(2)
3. Study the graph below which shows the menstrual
cycle and the influence of the different hormones on
it.
Answer:
i am pro i am pro i am pro i am pro
Mutation happens during which of the following processes?
D Protein synthesis
A DNA transcription
B DNA replication
CTranslation
which of the following is part of the digestive system? Adrenal gland, Ovary, Striped muscle, or tounge.
Answer:
tongue
Explanation:
Oh boy, what is this. So striped muscle isn't guaranteed to be part of the digestive system, and the adrenal gland just doesn't sound like it would be part of the digestive system. The Ovary is a hard no, to the tongue is the only one left.
if this is wrong let me know
hope this helps:)
room temperature for phosphorus
Explanation:
0.5digre celcious is our temperature ️ know
You've been experiencing acid indigestion lately, and you'd like a quick fix for the problem. You do a little research on the Internet and discover that your problem is caused by excess stomach acid. In the pharmacy aisles, however, you're having a little trouble deciding what to purchase to address the problem. At the pharmacy counter, the clerk recommends that you purchase PEPCID AC or Alka-Seltzer tablets. You want to design an experiment to compare the effectiveness of Pepcid AC tablets and Alka-Seltzer tablets. Which of the following facts would be least likely to complicate your experiment and the analysis of your results?
a. PEPCIO AC and Alka-Seitzer tablets contain different ingredients.
b. PEPCID AC and Alka Seltzer tablets contain different concentrations of the antacid drug.
c. The recommended dosage for PEPCID AC and Alka-Seltzer tablets is different.
d. PEPCIO AC and Alka-Seltzer tablets are sold in different countries throughout the world,
Answer:
d. PEPCIO AC and Alka-Seltzer tablets are sold in different countries throughout the world.
Explanation:
When there is excess acid in the stomach then Alka-Seltzer tablet can be used. The Ph level of these tablets is higher than 7 because acidic reaction need to be stopped with an introduction of base.