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
djverab [1.8K]
2 years ago
7

Before mitosis begins, what happens during S-phase?

Biology
1 answer:
Blababa [14]2 years ago
8 0
A
Before meiosis begins, during S phase of the cell cycle, the DNA of each chromosome is replicated so that it consists of two identical sister chromatids, which remain held together through sister chromatid cohesion. This S-phase can be referred to as "premeiotic S-phase" or "meiotic S-phase".
You might be interested in
Seawater is more dense than fresh water. A ship moving from the Atlantic into the Great Lakes goes from seawater to fresh water.
maw [93]

Answer:

Due to the density, it should sink further down.

Explanation:

4 0
3 years ago
Read 2 more answers
After photosynthesis, energy that the coral can use is stored in
katen-ka-za [31]

Answer:

Energy is stored in <u>glucose</u> molecules <u>C6H12O6</u>

<u />

Explanation:

Producers make sugars stored as monomers bonded together to form polysaccharides, long chain hydrocarbon molecules as a result of the process of <u>photosynthesis</u>. These molecules, like the monosaccharide glucose, store converted solar energy as stable  chemical energy in covalent bonds.  In covalent bonding, the elements share electrons with each other.

These high-energy bonds are stable and not easily destabilized or broken. The energy is retrieved the the process of respiration in the mitochondria.

Glucose is broken down, while energy is transferred to bonds between ADP and inorganic phosphate, to produce ATP (adenosine triphosphate).  

Eg. for aerobic respiration...

C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP

glucose+ oxygen →  carbon dioxide+ water+ energy

7 0
3 years ago
When NADH or NADPH transfers electrons to a recipient molecule, the recipient becomes reduced and the activated carriers are oxi
Allushta [10]

Answer:

NAD is a coenzyme found in all cells. It consists of two nucleotides linked through their phosphate groups with a nucleotide that contains an adenosine ring and another that contains nicotinamide.

Explanation:

In metabolism, NAD participates in oxidation reduction reactions. This coenzyme is found in two forms in the cells: NAD and NADH. NAD accepts electrons from other molecules and is reduced, forming NADH, which you can use as a reducing agent to donate electrons. These electron transfer reactions are the main function of the NAD.

In living organisms, NAD can be synthesized from scratch from the amino acids tryptophan or aspartic acid. Some NADs are found in nicotinamide adenine dinucleotide phosphate (NADP), whose chemistry is similar to NAD, although it has different functions in metabolism.

3 0
3 years ago
During ________ , ATP is captured when a six-carbon sugar breaks down into 2 three-carbon compounds.
OverLord2011 [107]
The answer is Glycolysis. Glycolysis is the first stage of Respiration that happens in the cytoplasm of the cell. In this process, a 6-carbon sugar molecules is broken down to form 2 molecules of 3-carbon pyruvate. The process of Glycolysis generates ATP in the presence of oxygen.
5 0
2 years ago
Select the renewable sources of energy.
mel-nik [20]

Answer:

Solar energy, Wind energy, Geothermal energy, Hydroelectric energy.

Explanation:

Have a nice day!

8 0
3 years ago
Other questions:
  • yolanda has a brain tumor. As the tumor gets bigger, Yolanda can no longer form new memories in long-term storage. Yolanda most
    11·1 answer
  • What does dna rna and starch all have in common
    15·1 answer
  • Beta-blockers ________. select one:
    12·1 answer
  • Which of the following statements is true?
    13·1 answer
  • Which effects are likely results of a forest fire? Check all that apply.
    11·2 answers
  • What estructure is this?​
    11·1 answer
  • Cytosine guanine thymine and adenine are referred to as phosphates. True or False
    5·1 answer
  • In what ways are
    5·1 answer
  • What is the difference between Eukaryotic cells and Prokaryotic cells?​
    7·2 answers
  • 1.How did robert hooke contribute to cell theory?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!