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
AlexFokin [52]
1 year ago
12

What should you do if every dilution of your sample results in a plate that is too few to count (tftc)?

Biology
1 answer:
lyudmila [28]1 year ago
5 0

When every dilution of your sample results in a plate that is too few to count we should filter the original sample and use most probable number method .

Probable number method count and determine the number of bacteria in a culture, plate aliquots of the dilutions onto agar with sterile pipettes, spread with glass sticks, incubate at 37°C and count the number of colonies. It is imperative that you utilize your best culture technique.

Not all bacterial cells produce colonies, as some bacteria tend to clump or aggregate, and some are nonviable. For this reason results are reported as colony forming units (CFU)/ml of bacterial culture. Ideally only plates with 25-250 colonies are used.

To learn more about bacteria , here

brainly.com/question/8008968

#SPJ4

You might be interested in
A Tesla model 3 accelerates to the right at 26.8 m/s2. The Tesla has a mass of 1950 kg.
MArishka [77]

Answer:

Using the second Newton's law:

force = m \times a \\ f = 1950 \times 26.8 = 52260N

5 0
2 years ago
Which of the following statements is a false or incorrect statement?
irakobra [83]

Answer:

The correct answer is option d) "damage to the primary motor cortex results only in the loss of both voluntary muscle control and reflexes".

Explanation:

It is false that damage to the primary motor cortex results only in the loss of both voluntary muscle control and reflexes. Many people that suffer from brain damage by strokes suffer from primary motor cortex damage. This damage not only affects voluntary muscle control and reflexes, as it affects muscles movement of any kind and can affect coordination as well.

8 0
3 years ago
the organelle that is composed of a phospholipid bilayer and surrounds the cytoplasm of the cell and contains the cell is called
Sliva [168]
This organelle is called C. Plasma or cell membrane.
8 0
3 years ago
A researcher claims that all living cells must be able to synthesize proteins in order to maintain homeostasis and perform basic
Vesna [10]

Answer: Option B) Nuclei house the DNA, which is the blueprint for proteins. Cell types I, II, and III can synthesize proteins.

Explanation:

All the genetic information that determines the traits expressed in an organism are loaded up within the DNA sequence. Hence, several genes that codes functional proteins are derived from the DNA, making DNA a blueprint for protein synthesis.

Thus, Cell types I, II, and III with DNA can synthesize proteins.

7 0
3 years ago
Read 2 more answers
________________ are temporary phenomena on the photosphere of the Sun that appear as dark spots compared to surrounding regions
Rudiy27

<u>Sunspots</u> are temporary phenomena on the photosphere of the Sun that appear as dark spots compared to surrounding regions. They are caused by intense magnetic activity.

4 0
3 years ago
Read 2 more answers
Other questions:
  • What are the steps in the experiment? (list four steps) How do the scientists test the hypothesis?​
    6·1 answer
  • Please hurry :) please
    13·1 answer
  • Jerry listed the following processes in his notebook. 1. formation of dew on leaves 2. ice cubes turning to water 3. water drops
    12·1 answer
  • A full moon appears white to us on earth because it A) emits white light B) reflects the light from earth C) reflects the light
    8·2 answers
  • look below for my questions, i really need help and school is really affecting my mental health but this site keeps saying that
    12·2 answers
  • In which structure in the ovary does an egg mature?
    10·1 answer
  • Representation of system or object such as charts or maps are
    11·2 answers
  • Name at least one thing that encouraged rapid growth and diversity in<br> organisms.
    13·2 answers
  • In Smileys, eye shape can be starred (SS), circular (CC), or a circle with a star (CS).
    10·2 answers
  • Muscle cells serve as a reservoir for which of the following?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!