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algol13
3 years ago
9

White blood cells are an important component of our immune system. One thing they do is consume and destroy bacteria by extendin

g their plasma membrane around the bacterium and bringing it inside the cell in a vesicle. By what process do they engulf the bacterium? White blood cells are an important component of our immune system. One thing they do is consume and destroy bacteria by extending their plasma membrane around the bacterium and bringing it inside the cell in a vesicle. By what process do they engulf the bacterium? phagocytosis pinocytosis exocytosis transcytosis receptor-mediated endocytosis
Biology
1 answer:
hammer [34]3 years ago
7 0

Answer: Phagocytosis

Explanation: this is one of the various ways in which the immune system fights against bacteria and other pathogenic organisms. It does this by extending its plasma membrane outwards forming a structure like a pseudopodia which it utilises to engulf the invading organism.

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The enzyme telomerase solves the problem of replication at the ends of linear chromosomes by which method?
adell [148]
<h2>Answer </h2>

The method is by adding various small DNA chains such as TTAGGG, that develop a hairpin turn.

<u>Explanation </u>

The method is by adding various small DNA chains such as TTAGGG, that develop a hairpin turn. Telomerase is an RNA dependent DNA polymerase means an enzyme that can make DNA using RNA as a template. The ends of linear chromosomes called telomeres that protect genes from getting deleted as cells continue to divide. The telomerase enzyme attaches to the end of chromosome complementary bases to RNA template are added on 3 ends of the DNA strand.

3 0
3 years ago
g Electron flow down the electron-transport chain leads to the transport of proteins: Group of answer choices from the matrix to
guajiro [1.7K]

Answer:

from the intermembrane space to the matrix

Explanation:

In the electron transport chain (ETC), electrons flow from one protein complex to another. However, as this electrons are transfered, protons (H+) is built up from the intermembrane space of the mitochondria to the mitochondrial matrix.

Hence, according to this question, a proton gradient is formed when hydrogen ions (H+) are moving from the intermembrane space to the matrix of the mitochondrial.

5 0
3 years ago
Scientists like to use fluorescent proteins for various types of recombinant DNA procedures. You have a very small amount of the
Novosadov [1.4K]

Answer:

The correct answer is b.Amplify the gene using PCR. Insert the gene into a plasmid vector. Transform the vector into the bacteria.

Explanation:

If I have a very small amount of gene for a fluorescent protein than the first step is to amplify the gene so that appropriate protein can be produced. PCR is the instrument that is used to amplify the protein.

So after amplification of the gene, the plasmid vector will be used in which the gene will be inserted because the plasmid vector is used to insert this gene in host cells where protein will be expressed.

The final step will be to transform bacteria with recombinant plasmid so that plasmid can make its copy and express a fluorescent protein in bulk.

6 0
3 years ago
Which of the following is an example of discrete data?
LekaFEV [45]

THE DOG HAS 2 BROTHER is the example of discrete data.

The dog has 2 brothers.

<u>Explanation:</u>

Discrete data is the information that can be categorized into a classification. Discrete data is based on counts. only a few finite number of value is possible.

It consists of whole number that are counted rather than measured. It can be classified  into two type, one is discrete and  other is continuous data, where the discrete is countable of the object and the continuous  is measurable one.

The dog has two brother is the example for discrete data because the number can be countable, remaining statement are continuous because they are measurable statement, it is always comes under the data continuous.

8 0
3 years ago
What are the adaptations of bottle-nosed dolphins that allows them to thrive in the marine biome?.
3241004551 [841]

Answer:

Thermoregulation

Explanation:

  1. Decreased surface-to-volume ratio. The dolphin's fusiform body shape and reduced limb size decrease the amount of surface area exposed to the external environment.
  2. Increased insulation. Dolphins deposit most of their body fat into a thick layer of blubber.
  3. Heat exchange system.

5 0
2 years ago
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