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blsea [12.9K]
3 years ago
11

What turns on and off the lac operon

Biology
1 answer:
d1i1m1o1n [39]3 years ago
3 0

Answer: off: lac repressor, on: CAP

Explanation:

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Cellulose is another long polymer of glucose. Plant cells make their cell walls out of cellulose. In fact, 100 billion tons of cellulose is made every year on earth. Cellulose is indigestible in most animals, including us. Ever eat a cardboard box? You get the picture. We simply lack cellulase, the enzyme that can break it down. Some bacteria, some single-celled protists, and fungi have the enzyme. Animals that feed on cellulose harbor these microbes that help them digest it. Even though, we cannot break down this molecule, we do need cellulose in our diet. We call it “fiber”. Cellulose stimulates the colon to produce regular bowel movements and helps make the stools large and soft. A diet rich in fiber can prevent a painful intestinal disorder called diverticulosis. Hard impacted stools can sometimes cause the walls of the colon to form blind outpockets called diverticula which can periodically inflame. So what makes cellulose different from starch? Isn’t it made of glucose? Well it is but the glucose monomers are organized in an interesting fashion. The orientation of the glucose molecules alternates. So if the first one is right side up, the next one is upside down and then the next is right side up and the next one is upside down. Apparently this is a tricky arrangement for an enzyme to break.
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3 years ago
Which component of peanut butter rutf supplies essential amino acids?
Finger [1]
<span>Which component of peanut butter rutf supplies essential amino acids? Your Answer will be Peanut Butter </span>
4 0
3 years ago
Which answer choice has only biotic examples?
wlad13 [49]
Biotic Factors are any living components that affect other organisms, and since soil is not alive (soil is an abiotic factor) then you can eliminate A., B., and C. D is the answer choice that has only biotic examples. 
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3 years ago
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Kristi's friends all describe her as cool and not easily frustrated. kristi most likely has which type of personality type? type
liberstina [14]
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4 0
3 years ago
------------is a life-threatening disease, characterized by high blood pressure that may afflict women late in the second or ear
Galina-37 [17]

Answer:

The correct answer is- Preeclampsia

Explanation:

Preeclampsia is a complication during pregnancy which is characterized by high blood pressure in the pregnant woman and damage to internal organs like liver and kidney.

This complication starts normally after 20 weeks of the pregnancy. Before starting preeclampsia the pregnant woman's blood pressure is normal. Preeclampsia can lead to serious complications if it untreated and the delivery of the baby is the most effective treatment.  

Therefore preeclampsia is a life-threatening disease, characterized by high blood pressure in pregnant women.

6 0
3 years ago
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