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3 years ago

What is the purpose of B cell and T cells during specific immune response

Biology

1 answer:

Mila [183]3 years ago

8 0

Answer:

Killer T cells release enzymes that help destroy invading foreign matter (antigens), Helper T cells, on the other hand, stimulate another type of lymphocyte known as B cells. B cells produce antibody, which is a protein made in response to a specific antigen.

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Describe the experiment, to show that light intensity, water, chlorophyll, and cabondioxide are needed for photosynthesis

lisov135 [29]

Answer:

Is light needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in an opaque box and 1 part in a transparent box (one with light and one without)

3. Test for starch (BEWI)

B. Is carbon dioxide needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in a box with CO2 absorber and 1 part in box with a CO2 provider

3. Test for starch (BEWI)

C. Is chlorophyll needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. Use a variegated leaf

3. Test for starch (BEWI)

B E W I

1. Put leaf in boiling water to destroy the cell membrane and denature enzymes

2. Ethanol in a hot water bath to remove chlorophyll

3. Warm water to soften the leaf

4. Add drops of iodine solution

Explanation:

3 0

3 years ago

A student runs 5 km each afternoon at a slow, leisurely pace. One day, she runs 2km as fast as she can. Afterward, she is winded

Ad libitum [116K]

<h2>Cellular respiration </h2>

Explanation:

Cellular respiration is defined as a ATP generating process in which organic molecule is oxidized and inorganic molecule is final electron acceptor
Pain experienced in leg muscles is the result of formation of lactic acid in muscle cells
Under low oxygen, NADH cannot be reoxidized to NAD+ but NAD+ is required as an electron acceptor to continue glycolysis
In lactic acid fermentation pyruvate is the final electron acceptor and converted in lactate
Reaction catalyzed by lactate dehydrogenase
The pain in her chest is caused from the lack of oxygen she received while running so her chest starts to heavily breathe so that the lungs can receive as much oxygen possible

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3 years ago

Which of the following statements correctly compares transcription in prokaryotes and eukaryotes?

aev [14]

Answer: Which of the following statements correctly compares transcription in prokaryotes and eukaryotes?

Explanation: It would be B

7 0

3 years ago

A box is sliding at constant velocity. The coefficient of friction between the box and the surface is 0.27. The push force on th

Georgia [21]

Jidihejkfdkljdn hope it helps

3 0

4 years ago

HELP ME !!!!!!!!! NO LINKS Which of the following is not a force?

PtichkaEL [24]

Answer:

momentum

Explanation:

SI units of force and momentum are different.

7 0

2 years ago