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
nika2105 [10]
3 years ago
6

True or false? The lac operon operates by having the repressor only leave the operator when it is bound to the lactose molecule

Biology
1 answer:
S_A_V [24]3 years ago
7 0

Answer:

true

Explanation:

When lactose is not available, the lac repressor binds tightly to the operator, preventing transcription by RNA polymerase. However, when lactose is present, the lac repressor loses its ability to bind DNA. It floats off the operator, clearing the way for RNA polymerase to transcribe the operon

You might be interested in
Photosynthesis and cellular respiration, look at the picture
Anika [276]

Mike discovered that the  product of cellular respiration are the raw materials  of Photosynthesis while the products of photosynthesis  served as the raw materials for cellular respiration.

He also discovered that respiration is a catabolic process while photosynthesis is an anabolic process.

Another interesting fact seen by Mike is, the respiration releases energy while photosynthesis takes in energy.

Explanation:

  • In the equation of cellular respiration , we can see that glucose and oxygen are utilized in the mitochondrion to produce  carbon dioxide , water and chemical energy in the form of ATP.
  • Glucose breaks down during cellular respiration .
  • Again if we look at the chemical equation for photosynthesis in the chloroplast, we find that Carbon dioxide,which was produced during respiration is utilized along with water in presence of light energy to give out oxygen and Sugar (glucose)

8 0
3 years ago
2a) Which of the following statements about pyruvate oxidation IS TRUE?
Darina [25.2K]

The true statements are:

  • Substrate level phosphorylation ocvurs during Pyruvate oxidation
  • 32 ATP molecules can be made by cellular respiration but only 2 ATP molecules when oxygen is lacking
  • Electrons move from protein to protein due to increasing electronegativity in the electron transport chain
  • ADP is phosphorylated in the matrix of the mitochondria during oxidative phosphorylation
  • ATP inhibits pyruvate dehydrogenase by feedback inhibition

<h3>What is glucose oxidation?</h3>

Glucose oxidation refers to the process in the cells in which glucose molecules are oxidized to form ATP and carbon dioxide in the presence of oxygen.

The first stage of glucose oxidation is the conversion to pyruvate.

Pyruvate is oxidized to acetylCoA.

AcetylCoA enters the citric acid cycle to produce reducing equivalents, NADH for the electron transport chain.

  • The true statements about pyruvate oxidation is that there is substrate level phosphorylation during the process
  • When there is sufficient oxygen, 36 ATP molecules can be made (theoretically) by cellular respiration. However, when oxygen is lacking, only 2 ATP molecules are made.
  • In the electron transport chain of cellular respiration, electrons move from protein to protein due to increasing electronegativity
  • During oxidative phosphorylation, ADP is phosphorylated in the matrix of the mitochondria
  • Aerobic respiration can be regulated by feedback inhibition of pyruvate dehydrogenase by ATP.

Learn more about pyruvate oxidation at: brainly.com/question/22565849

#SPJ1

7 0
2 years ago
Answer this plzz!!!​
ohaa [14]
I believe your answer is B :)
5 0
3 years ago
WILL GIVE BRAINLIEST AND 20 POINTS!
V125BC [204]

Answer:

B. All good choices are cancelled out by functional fixedness.

Explanation:

People usually follow their strongest internal feeling despite their rational understanding So I feel it’s B for example someone dies in a shoot out I would in the situation mourn but some else would probably be so overwhelmed by there emotion of anger they’ll want revenge asap and end up same as there friend.

5 0
3 years ago
What evidence has allowed scientists to conclude that the common ancestor of modern chimps
EastWind [94]

Answer:

C. DNA is the best/most accurate evidence

7 0
3 years ago
Other questions:
  • What is a example of allele
    13·1 answer
  • What is the definition of the oxygen cycle?
    14·2 answers
  • What atoms are needed to complete each broken bond between monomers?
    8·2 answers
  • Are pandas Autotroph or Heterotroph?
    5·2 answers
  • Which of the following is not a characteristic of enzymes?
    10·1 answer
  • In texas, the legal definition of intoxication is: not having the normal use of mental or physical faculties by reason of the in
    13·1 answer
  • Which curve show an equal chance of dying regardless of age
    11·2 answers
  • After reading the paragraphs below, answer the questions that follow. Bloom syndrome is a rare disease characterized by growth d
    11·1 answer
  • Amino acid sequences in the proteins of two separate species are similar. What can you conclude about the DNA in those species,
    5·1 answer
  • What was the dependent variable
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!