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Phantasy [73]
3 years ago
13

What is the main difference between bacteria and humans that gives Sulfa drugs their antibacterial properties? Group of answer c

hoices Human cells can readily absorb folic acid; bacteria cells cannot. Bacteria cells can readily absorb folic acid; human cells cannot. Bacteria cells can readily absorb sulfa drugs; human cells cannot. Human cells can readily absorb sulfa drugs; bacteria cells cannot. None of these
Biology
1 answer:
sertanlavr [38]3 years ago
7 0

Answer:

Human cells can readily absorb folic acid; bacteria cells cannot.

Explanation:

Bacterial cells cannot absorb folic acid and synthesize it. On the other hand, humans do not synthesize folic acid in their cells. They rather obtain it from the diet. Sulfa drugs, for example, sulfanilamide resemble p-aminobenzoate (PABA). PABA is a molecule that is used as a substrate in the synthesis of the coenzyme folic acid. The sulfa drugs serve as competitive inhibitors and compete with PABA for the catalytic site of an enzyme involved in the folic acid synthesis. This prevents the synthesis of folic acid in bacterial cells and thereby, inhibits bacterial growth.

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Why do some offspring look like their parents, while others do not?
castortr0y [4]
Some offsprings look like their parents because we all have different genes. Different combinations of genes for one of these traits create a bunch of different physical attributes. Even though we get all our DNA from our parents, each of us has a unique combination of genes.
3 0
2 years ago
The body monitors the levels of oxygen in the blood to regulate breathing. Isabel is running in a marathon and is near the finis
Makovka662 [10]

Reflex action refers to the response to a stimulus, while reflex arch refers to the path taken by the reflex action.

<h3>What is the nervous system? </h3>

1. Low oxygen levels are detected by sensory receptors in the arteries.

2. An impulse is produced by sensory neurons.

3. Certain parts of the brain get an impulse from the central nervous system.

4. Motor neurons carry messages from the brain.

5. Isabel's respiration becomes more rapid.

Reflex actions are immediate, reflexive reactions to stimuli that limit bodily harm.

Therefore, it travels to the brain via the central nervous system and sends impulses via Isabel's motor neurons, which aid to speed up her breathing.

Learn more about neurons, here:

brainly.com/question/12040535

#SPJ1

4 0
10 months ago
What is an observation
vagabundo [1.1K]
Hello!

Could be either:

<span>The action or process of observing something or someone carefully or in order to gain information.
</span>
Or 

<span>A remark, statement, or comment based on something one has seen, heard, or noticed.
</span>
And in Science:

 <span>An 'observation' in the scientific sense, is when you make a measurement or evaluation of some sort. You would usually make a note of how something has changed sine the previous ovbservation. Maybe the temperature has changed: gone up one degree; or a crystal has grown: maybe it is now .1 centimeters longer. 

"Observations" usually implies that you are watching some process, and either measuring or noting the change that has taken place. usually you will also want to note the time of the observation, so that you can have an idea of how quickly (or slowly) the changes are occurring.
</span>

Hope this All Helps (Hope it did)! Have A Wonderful Day! :)
4 0
3 years ago
PLS HELP ASAP If an animal cell wasn't in an isotonic solution, wouldn't active transport be able to balance the cell's volume?
ohaa [14]

Answer:

Animal cells tend to do best in an isotonic environment, plant cells tend to do best in

a hypotonic environment. This is demonstrated in the attached PDF.

Explanation:

A cell that does not have a rigid cell wall, such as a red blood cell, will swell and lyse (burst)  when placed in a hypotonic solution, a process called cytolysis. Cells with a cell wall will swell when placed in a hypotonic solution, but once the cell is turgid (firm), the tough cell wall prevents any more water from entering the cell. When placed in a hypertonic solution, a cell without a cell wall will lose water to the environment, shrivel, and probably die. In a hypertonic solution, a cell with a cell wall will lose water too. The plasma membrane pulls away from the cell wall as it shrivels, a process called plasmolysis.

I hope this helps. If not I am really sorry!

Download pdf
7 0
3 years ago
In the twentieth century, where did the most ecologically destructive oil spill in the U.S. occur?
grin007 [14]
Your answer is Prince William Sound

Gradpoint? Novanet?

Insta: 6abiface
3 0
3 years ago
Read 2 more answers
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