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
zheka24 [161]
3 years ago
15

When glucose is present, enzyme IIAglc is __________ and LacY is __________. a. phosphorylated; inhibited b. not phosphorylated;

inhibited c. phosphorylated; activated d. not phosphorylated; activated
Biology
1 answer:
olga_2 [115]3 years ago
5 0

Answer:

Option B, not phosphorylated; inhibited

Explanation:

Glucose 6 acts as a catobolite repressant . A catobolite repressant which is usually a carbon compound inhibits the operon transcription. In the presence of glucose -6, unphosphorylated enzyme IIAGlc  inhibits the transportation system and hence prevents the utilization of lactose. Glucose‐6‐phosphate and other non‐PTS carbon causes inducer exclusion thereby leading to dephosphorylation of enzyme IIAGl without getting transported.

Hence, option B is correct

You might be interested in
Which statement best describes the purpose of the eye?
iris [78.8K]

Answer:

Where are the statements?

Explanation:

7 0
3 years ago
Read 2 more answers
Using technology to modify the genes of a plant making it resistant to disease is an example of which type of genetic engineerin
LiRa [457]

Answer:

I think it is B) human genome project or C) harmful mutations

6 0
3 years ago
Using the graphs below, determine which water drop rate leads to the highest seed growth.
expeople1 [14]

Answer:

C. 50 drops/hr

Explanation:

As we can see in the description of the graph above, 50 drops/hr was the rate of water fall that was most successful in plant growth. This is because with this rate, the seeds germinated more quickly, the seedlings showed a strong and fast vegetative growth, besides that at the end of 5 days, it was observed that germination of almost 100% of the seeds occurred. These facts cannot be observed with the other waterfall rates, so the correct answer is 50 drops/hr.

6 0
3 years ago
A polypeptide only becomes a functioning protein after it has folded into its exact 3D shape.
makkiz [27]
True. A protein becomes functional only when it reaches its tertiary shape (3D). It is not necessary for the protein to reach the quaternary stage, but that is just a more complex functioning protein. It really is just two tertiary merged together. Example is red blood cells.
4 0
3 years ago
Studies have shown that children are especially vulnerable to the effects of ultraviolet (UV) radiation. Tanning beds expose the
balandron [24]

Hello there!!

The answer, I think, would be A.

UV radiation can create problems in the correctness of cell replication, which can result in mutated cells.

I hope this answers your question!

4 0
3 years ago
Other questions:
  • "You are in your room listening to music and, realize you are thirsty, you can feel that your soda is no longer cold, and you de
    8·1 answer
  • An _____<br> is a head and throat specialist.
    15·1 answer
  • When most liquids are frozen, the molecules get closer together. In water, however, hydrogen bonds cause individual water molecu
    14·2 answers
  • Describe the three ways that biodiversity is defined
    14·2 answers
  • 7. How are the Adirondack Mountains believed to have been named?
    10·1 answer
  • ______________ occurs when ecosystems change over time through the progressive replacement of species.
    6·1 answer
  • Lemurs’ bodies are adapted to efficiently store energy for times when food is scarce. This adaptation may help to explain how le
    8·1 answer
  • Do Prokaryotes have differentiated cells?<br><br><br>not high school, seventh grade
    13·1 answer
  • *
    12·1 answer
  • What is the role of differentiation in creating different organs within the body?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!