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mihalych1998 [28]
3 years ago
6

Lymphocytes are generated during an initial infection. Years later, these lymphocytes respond to repeated exposure to the infect

ion. These lymphocytes are called ________ cells.
Biology
1 answer:
avanturin [10]3 years ago
6 0

Adaptive immunity is developed after an organism is exposed to a disease. Lymphocytes, who years later respond to repeated exposure to the infection are called;

  • T Cells

Lymphocytes are basically classified into two namely, the B and T cells. The B cells give antibody-mediated immunity while the T cells provide cell-mediated immunity.

The memory cytotoxic T lymphocyte is stored as reserve in the body so that in the event of the reoccurrence of a disease, it will resolve itself into the cytotoxic T cell that will fight the disease antigen.

Learn more here:

brainly.com/question/13437170

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A living cell is placed into a hypotonic solution . Compare the solute and solvent concentration inside the cell with the concen
frosja888 [35]
<h2>Answer:</h2>

The living cell concentration is hypertonic than outer solution hence the concentration of solutes will be higher than the solvent.

<h3>Explanation:</h3>
  • In the question description it is mentioned that cell is present in the hypotonic solution than cell environment will be hypertonic.
  • In the cell the solute will present in the concentrated form.
  • Hence the water will move from the outer environment into sell through the osmosis.
  • Osmosis is the movement of water from higher concentration to low concentration through semi permeable membrane.
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What is the role of electron carriers in cellular respiration?
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An electron carrier is a molecule that transports electrons during cellular respiration. ... The energy stored in NADH + H+ and FADH2 will be released later in cellular respiration to generate ATP, which can be used as an energy source throughout the cell.
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Which of the following is a characteristic of an ionic bond?
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D. An element donates an electron to another element.
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The light reaction of photosynthesis puts carbon dioxide into the form of carbonhydrates
Dima020 [189]

Answer:

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Dark reaction means that light is not necessary for this part of photosynthesis. In the dark reaction, CO2 from the atmosphere is fixed or becomes part of a carbohydrate dioxide into the form of carbohydrates-organic molecules used as food for the plant. This process is called the Calvin Cycle.

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3 years ago
The source of passive immunity that a mother gives to her infant through breast milk is known as __________.
maks197457 [2]

Answer:

The correct answer is- IgA

Explanation:

There are five types or class of antibodies found in the human body these are IgA, IgM, IgD, IgE, and IgG. Out of these five class IgA antibody is found in an abundant amount in the mother's milk or colostrum.

Infant take this antibody from the mother through breastfeeding which protects the infant from may pathogenic microbes. The immunity in which antibodies are taken from outside is called passive immunity.

Therefore the passive immunity source that is given by the mother to baby through breast milk is called IgA.

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