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
GarryVolchara [31]
2 years ago
7

Mitochondria and chloroplast are structures found in the eukaryotic cells. What is the theory regarding their origins?

Biology
1 answer:
REY [17]2 years ago
4 0

Answer:

The endosymbiotic theory explains the origins of eukaryotic cells.

Explanation:

You might be interested in
Under physiological conditions, peptide bond formation and degradation both require enzymes, but only formation requires couplin
posledela

Answer:

thermodynamically unstable but kinetically stable.

Explanation:

The complete question is as follows:

Under physiological conditions, peptide bond formation and degradation both require enzymes, but only formation requires coupling to GTP hydrolysis. Based on this information, peptide bonds under physiological conditions are:

A. both thermodynamically and kinetically stable.

B.thermodynamically unstable but kinetically stable.

C.thermodynamically stable but kinetically unstable.

D. both thermodynamically and kinetically unstable.

  • The term thermodynamically unstable refers to the fact that the peptide bonds are prone to breakage under physiological conditions.
  • The reason why one can conclude the thermodynamic instability of the peptide bonds under physiological condition is that there is a need for a source of energy i.e. GTP hydrolysis for the formation of the peptide bond.
  • The fact that the breakage of peptide does not require any input of energy but the only formation does confirms the fact that under physiological conditions they are thermodynamically unstable.
  • Even though they are thermodynamically unstable, they are kinetically stable because both the formation and degradation require enzymes.
  • The function of enzymes is to decrease the activation energy and hence, increase the rate of reaction. This means that if the enzymes are absent the rate of breakage of peptide bonds would be really slow this points out to the fact that they are kinetically stable under physiological conditions.
8 0
3 years ago
If a cell were treated with poison to block to function of its michocondria which of the following would be likely result?
blagie [28]
<span>The pH of the matrix increases and the pH of the inter membrane cell decreases
</span>
The reason behind this is the presence of the electron transport chain within the mitochondria which requires the transport of hydrogen ions. The movement of hydrogen ions results in varying pH. If the mitochondria dies, the hydrogen ions will not move into the matrix, causing its pH to increase, and they will build up in the inter membrane causing a decrease in pH.
6 0
3 years ago
When an automatic battery is fully charged the sulfuric acid and water mixture will have a specific gravity of about
Archy [21]

the specific gravity of pure sulfuric acid is---------> approximately 1.835 g / cm3

the specific gravity of water is -------------------- >1.000 g / cm3.

 The electrolyte, that is, the dissolution of sulfuric acid in water, is usually at a rate of 36% acid, so that, in a fully charged element, we can deduce the electrolyte density, is 1.295 g / cm3. (see attached table)

The specific gravity is actually the difference in the weight of water compared to a specific fluid. It is measured with a hydrometer


8 0
3 years ago
Which of the following is true of microbes?A. Ninety-nine percent of all microbes are pathogenic.B. Gene expression in bacteria
serious [3.7K]
B. Gene expression is in them is similar to us but facilitates the use of bacteria in recombiant biotechnology and gene therapy.
We human have eukaryotic cells which have a devoloped nucleas whereas small bacteria have prokaryotic cells with no definite nucleus using more biotechnology. Other all are not true.
6 0
3 years ago
Read 2 more answers
In an investigation, plant cells are placed in water that has been tinted blue. The investigators observe the color of the cells
larisa [96]

Answer:

C

Explanation:

When plant cells take in water, the vacuole swells. A swollen vacuole indicates the plant cell has all the water it needs. This suggests that the plant is taking in water and is maintaining optimum conditions. This is an example of homeostasis.

If the cells burst apart, as in A and E, this would suggest the cell is not properly maintaining homeostasis, as the cell bursting suggests something has gone badly wrong. This suggests the cell has taken in too much water; the cell has not been able to maintain homeostasis and regulate water uptake to prevent this from happening.

In the reverse case, where the cells shrink apart (as in B), the cell would also not be properly maintaining homeostasis by failing to bring enough water into the cell to maintain a turgid state. This is also damaging for the cells.

Finally, D and E can also not be correct, because water can cross the cell membrane, and does not need to be pumped in or sent out by endocytosis.

8 0
3 years ago
Other questions:
  • true or false? DNA replication occurs simultaneously at many sites along the molecule speeding up the process of replication.
    12·1 answer
  • What strand of DNA would be produced from the template strand of DNA shown below?
    11·2 answers
  • Explain why Latin is the basis for many scientific names
    10·2 answers
  • Help me please if you can
    7·1 answer
  • According to the theory of plate tectonics, which forces cause the movement of plates in the earth's crust? A. convection and gr
    14·1 answer
  • The cell membrane is often referred to as a “...”? because of the two layers of phospholipids.
    7·1 answer
  • Is a wildfire caused by an arsonist considered an extreme weather event?
    5·1 answer
  • From the types of light that reach Earth's surface, which do you think could be causing skin cancer?
    13·1 answer
  • A scientist uses a telescope to observe the two stars. Which of these is the best conclusion about the images of the two stars a
    14·2 answers
  • many more people who smoke develop lung cancer than those who do not smoke. What research would possibly show that cigarette smo
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!