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Solnce55 [7]
2 years ago
8

You have recently identified a new toxin. It is produced by a gram-negative bacterium. It is composed mostly of protein, has hig

h toxicity, and is not heat stable. You also discover that it targets liver cells. Based on these characteristics, how would you classify this toxin
Biology
1 answer:
alukav5142 [94]2 years ago
5 0

Based on the characteristics above, this toxin can be categorized as EXOTOXIN. These toxins (exotoxins) are produced by different types of bacteria.

Exotoxins are a broad category of proteins produced by bacteria that enter host cells in order to alter their physiological properties.

These toxins (exotoxins) can be secreted by Gram-negative bacteria and Gram-positive bacteria.

Examples of exotoxins include botulinum toxin secreted by <em>Clostridium botulinum</em> bacteria, tetanospasmin toxin secreted by <em>Clostridium tetani </em>bacteria, etc.

Learn more in:

brainly.com/question/7607727

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2. Suppose you connect a battery to a small light bulb with a single wire. What do you think will
Art [367]

Answer:

the lightbulb will turn on

Explanation:

because in the circuit electricity is flowing from the battery through the wire into the lightbulb, giving it enough energy to turn on.

7 0
3 years ago
Read 2 more answers
What would happen if a plant was unable to produce cuticles?
ryzh [129]

Answer:

It will be dehydrated, and will eventually wilt.

Explanation:

Transpiration causes water loss in a plant and this could be regulated by the cuticle, because it protect the plant tissues from unwanted water.

  So when it is absent dehydration takes place, and the plant stem will not totally provide support. This will eventually wilt the said plant.

8 0
3 years ago
You dilute an unknown sample of bacteria to 1 x 10-6 and plate out 10 onto a Petri dish. The next day you count 64 colonies. The
Sveta_85 [38]

Answer:

b

Explanation:

The correct answer would be 6.4 x 10^6 cells/ul.

For 1 x 10-6 dilution, the plating factor is 10^6. To find the number of bacteria in the original sample, the plating factor is multiplied by the colony count per ul.

<em>Number of viable bacteria = plating factor x colony count/ul</em>

Since 10 ul gives 64 colonies.  1 ul will give:

         64/10 = 6.4 colonies.

Therefore, the viable bacteria in the original sample = 6.4 x 10^6 cells/ul

The correct option is b.

3 0
3 years ago
Which represents the cross between parent plants if one is heterozygous and has yellow-colored pods and the other is homozygous
9966 [12]

The cross between parent plants if one is heterozygous for yellow pods and the other is homzygous for green pods - Yy yy., i.e., option A.

<h3>What is heterozygous?</h3>

The occurrence of different types of alleles is referred to as heterozygous condition.

A heterozygous genotype may consist of one normal allele and one mutated allele, or two distinct mutated alleles.

The missing options of the question are:

  1. Yy ´ yy
  2. YY ´ yy
  3. Yy ´ Yy
  4. yy ´ yy

The cross between parent plants if one is heterozygous for yellow pods and the other is homzygous for green pods - Yy yy.

Thus, the correct option is A.

For more details regarding heterozygous genotype, visit:

brainly.com/question/238628

#SPJ1

3 0
2 years ago
A contracting skeletal muscle fiber typically shortens as all of its ______ shorten in length.
Genrish500 [490]

Answer:

 sarcomeres

Explanation: A contracting skeletal muscle fiber typically shortens as all of its sarcomeres do this.... Thick and thin protein filaments in sarcomeres interact to cause.... True or false, thick and thin filaments maintain their same length whether the muscle is relaxed or contracted?

8 0
2 years ago
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