Ask question

Ask question

All categories

3 years ago

5

Which of the following is NOT a membrane-disrupting toxin?

1 answer:

Vaselesa [24]3 years ago

3 0

Answer:

Answer is A-B toxin.

Explanation:

A membrane-disrupting toxin is toxin that affect the cell membrane. The effect of its secretion could be by interrupting the phospholipid layer or through pores formation on the membrane.

Membrane- disrupting toxins are regarded as exotoxins. Examples are leukocidin and hemolysin which their effects cause leakages of the cytoplasmic content and lysis of the cell, through the formation of pores on the cell membrane.

The A-B toxin are produced by the proteins of pathogenic organisms such as the bacteria. Example is botulinum toxin.

You might be interested in

Can anyone please help with these two questions? Thanks!

Elanso [62]

Answer:

hi :3

Explanation:

8 0

3 years ago

Read 2 more answers

An object weighs 40kg on Earth. Describe how the weight of an object would change if it were put on the moon.

Andrews [41]

Answer:

The weight would decrease because there is less gravity on the moon

Explanation:

This is because the acceleration due to gravity on the moon is a third of that on earth

6 0

3 years ago

Please help me with both questions 20 and 21

scoundrel [369]

20.4 21.3 are the correct answers

5 0

3 years ago

A 10-7 is performed on a culture of bacteria in order to perform viable plate counts. From the dilution, *0.1 mL* of solution is

marishachu [46]

Answer:

$66 * 10^8$ CFU/mL

Explanation:

Given -

a) Number of colonies of bacteria is equal to $66$

b) Total volume of the solution is equal to $0.1$ mL

c) Dilution factor is equal to $10^{-7}$

As we know that

CFU/mL $= \frac{N * DF}{V}$

Where N is the number of bacterial colonies, DF is the dilution factor and V is the volume

Substituting the given values in above equation, we get -

CFU/mL $= \frac{66* 10^7}{0.1} \\= 66*10^8$

5 0

3 years ago

Two cell organelles are described below.

matrenka [14]

Answer:

Organelle A is chloroplasts

Organelle B is the vacuole

Explanation:

I don’t exactly understand what it means on which one is correct, but I hope this helps you.

5 0

2 years ago

Read 2 more answers