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
motikmotik
3 years ago
7

The enzyme beta-galactosidase acts on lactose to form galactose. In turn, the presence of galactose leads to expression of the e

nzymes responsible for the metabolism of galactose. In this case, lactose is serving as a carbon source and as a(n):
Chemistry
1 answer:
san4es73 [151]3 years ago
4 0

Answer:

an inducer

Explanation:

An Enzyme is a protein molecule found in cells which work as biological catalysts.

They speed up chemical reactions in the body, but do not get used up in the process, and can be used over and over again.

In chemistry inducers are molecules that regulates gene expression, and can bind to protein repressors or activators.

Lactose here acts as an inducer because it inactivates the repressor of an operon.

You might be interested in
Define the terms heredity and inherited in your own words.
adelina 88 [10]

Answer:

Heredity is when you have gotten either physical or mental traits from your parents.

Inherited in Biology: Getting traits from your parents

Inherited outside Biology: is the practice of passing on private property, titles, debts, privileges, rights, and obligations upon the death of an individual.

Explanation:

3 0
3 years ago
What are blocks of time in the geological time scale called?
Katena32 [7]
B is the answer , i got you
7 0
3 years ago
Read 2 more answers
Joanna is performing a reaction that generates a moderate amount of hydroxide. To mimic biological conditions (most bodily fluid
Nady [450]

Answer:

As for your question, I know to forget to put the options, specifically that your question is incomplete.

Explanation:

Although it could help you by telling you that always a reaction that seeks to balance the pH, and achieve neutrality ... It is necessary to achieve a concentration of OH equal to that of H +, in this way the hydroxyl and the protons.

7 0
3 years ago
A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur. S
Burka [1]

Answer:

Solution A: crenation

Solution B: hemolysis

Solution C: hemolysis

Solution D: crenation

Solution E: crenation

Explanation:

Hemolysis is the rupturing of red blood cells, which results in the release of hemoglobin (from within the red blood cells) into the plasma. If a red blood cell is placed in a hypotonic solution, water will flow into the cell, the cell will swell and hemolysis will.

Crenation: when a red blood cell is placed in a <em>hypertonic solution (</em>such as highly saline solution), the red blood cell will lose water(osmosis) and will shrink in size. The red blood cell has undergone crenation.

In order for a red blood cell to prevent from undergoing hemolysis or crenation, the cell must be placed in an<em> isotonic solution, </em>i.e either in <u>0.9% (m/v) NaCl solution</u> or <u>5% glucose solution</u>

  • Solution B and Solution C are hypotonic solution, thus red blood cell has undergone hemolysis.
  • Solution A, D and E are hypertonic solution. thus red blood cell has undergone crenation
8 0
3 years ago
Which element has exactly five electrons in the highest principal energy level (the outer shell)?
statuscvo [17]
This question is asking for an element with 5 valence electrons.  Just go to the row it is in (excluding transition metals) and count over.  
The answer would be c. P
7 0
3 years ago
Read 2 more answers
Other questions:
  • First to answer both CORRECTLY gets brainleist!
    9·2 answers
  • Which event always involves a chemical change A boiling B melting C conducting D burning
    11·1 answer
  • hich metal will displace nickel in a compound? A. Arsenic B. Tin C. Zinc D. Platinum
    13·1 answer
  • A gas is contained in a thick-walled balloon. When the pressure changes from 319 mm Hg to 215 mm Hg, th volume changes from 0.55
    9·2 answers
  • 1.) How can atomic number and mass number be used to find the numbers of protons, electrons, and neutrons?
    5·1 answer
  • In a particular type of cat, coat color follows the dominant/recessive pattern of inheritance. The allele for a brown coat (B) i
    5·1 answer
  • Table salt is insoluble in water. true or false
    14·2 answers
  • When cells are dividing, it is
    9·1 answer
  • What are 2 chemical changes of water?​
    8·1 answer
  • Compare the modern (electron cloud) model of the atom with Bohr’s atomic model. Which of these statements describe the two model
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!