Which of the following parts of the brain is related to controlling water concentration and Osmosis?

The trp and lac operons are regulated in various ways. how do bacteria regulate transcription of these operons?

Vlada [557]

Operon is not transcribed:

-lac operon: lactose absent

-trp operon: tryptophan present

Positive control transcription of Operon does not speed it up:

Lactose and glucose are present, -lac operon

Tryptophan is lacking in the -trp operon.

Operon is transcribed quickly through positive control:

-lac operon: lactose present, glucose not

Only negative control is used to regulate the trp operon. The operon genes are not transcribed when tryptophan is present.

Both positive control and negative control are used to control the lac operon.

Negative control: —Transcription is inhibited when lactose is missing due to the activity of the repressor protein.

—The repressor protein is deactivated and transcription is triggered when lactose is present.

Positive control: —In the absence of glucose, another regulatory protein (CAP) attaches to the lac operon's promoter, speeding up transcription in the presence of lactose.

Learn more about lac operons here:

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7 0

1 year ago

Land heats up faster during the day than water does. As the beach gets warm during the day, it heats the air above it. The warm

diamong [38]

Answer: I believe the ocean will be cool and the land will be cool so pretty much it will be more cooler at night than the day I hope this helps.

Explanation:

7 0

3 years ago

Which is true about adaptations?

hichkok12 [17]

I’m sure it is D I just took the test

5 0

3 years ago

Meteorites formed a long time ago in the early solar system.<br> True or False

zalisa [80]

Answer:

True.

Explanation:

This is true because Meteorites originate range from 4.5 billion years old to 200 million years old.

3 0

3 years ago

Read 2 more answers

The digestive tract is essentially one long tube. Write down order of the structures

Angelina_Jolie [31]

Answer:

It consists of the mouth, or oral cavity, with its teeth, for grinding the food, and its tongue, which serves to knead food and mix it with saliva; the throat, or pharynx; the esophagus; the stomach; the small intestine, consisting of the duodenum, the jejunum, and the ileum; and the large intestine, consisting of the cecum, a closed-end sac connecting with the ileum, the ascending colon, the transverse colon, the descending colon, and the sigmoid colon, which terminates in the rectum. Glands contributing digestive juices include the salivary glands, the gastric glands in the stomach lining, the pancreas, and the liver and its adjuncts—the gallbladder and bile ducts. All of these organs and glands contribute to the physical and chemical breaking down of ingested food and to the eventual elimination of nondigestible wastes.

6 0

3 years ago