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dexar [7]
3 years ago
11

The mechanism by which the presence of glucose inhibits the lac operon is

Biology
1 answer:
Akimi4 [234]3 years ago
5 0

The right answer is Catabolite repression.

When lactose and glucose are present, the bacteria will metabolize it preferentially: it does not need the enzymes necessary for lactose metabolism. This implies the existence of another regulatory mechanism that is called catabolic repression. It is only when the glucose concentration decreases that the lactose metabolism becomes necessary.

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Structure A is _____. Structure of mitochondrial membrane. The intermembrane space is located above the membrane and contains th
gavmur [86]

Answer:

Cristae or Cristal membrane

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4 0
3 years ago
What pigment is derived from vitamin a
g100num [7]

Retinol undergoes oxidation to produce retinal, which when combined with the protein opsin results in the formation of the light-sensitive pigment rhodopsin. You can see in black and white because rhodopsin is the pigment that gives you night vision.

<h3>What pigment is created using vitamin A?</h3>

Rhodopsin, also known as visual purple or the light-sensitive pigment found inside rod and cone cells of the retina, requires the retina as a structural component in order to function.

Yellow, orange, and red fruits and vegetables are colored by a pigment called carotenoids. Some carotenoids can be transformed into vitamin A by your body. The two sources of vitamin A are as follows: Fish, liver, dairy products, eggs, and organ meats are all sources of preformed vitamin A.

To know more about pigments visit:

brainly.com/question/26722048

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3 0
1 year ago
Please help me with all its due tomorrow
andriy [413]
A heterotroph is an organism that cannot produce its own food. It has to eat/ consume other organisms to sustain its self.  An omnivore is an animal that eats both plants and animals.  It is a heterotroph because it must eat to live.  Same with a carnivore, just that it only eats meat.
3 0
3 years ago
Sample of practical recording
Natalija [7]
I need more details to answer your question
7 0
2 years ago
The client is hospitalized for four days with an acute myocardial infarction. after a coronary artery stent is placed, the clien
lesya [120]

Hey There

how are you

the answer to your question is

Acute time limited




Stressors can assume a number of patterns in relation to time. They may be classified as acute time-limited, chronic intermittent, or chronic sustained. An acute time-limited stressor is one that occurs over a short time and does not recur. A chronic intermittent stressor is one to which a person is chronically exposed intermittently; chronic sustained is continuous. PTSD is characterized by a severe stress response secondary to experiencing previous trauma.


thank you

7 0
3 years ago
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