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Readme [11.4K]
2 years ago
5

The thylakoids of chloroplasts are the location of several important steps of photosynthesis. Suppose you put chloroplasts in th

e dark, and then artificially lowered the pH of the interior (lumen) of each thylakoid. What does lowering the pH do to the lumen of the thylakoid
Biology
1 answer:
Savatey [412]2 years ago
7 0
The answer is A I think
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LDL (low-density lipoprotein) contains
Basile [38]

Answer:The correct answer is " a"

LDL contain protein,triglycerides,phospholipid and cholesterol.

Explanation:

Low density lipoprotein,or LDL,are complex aggregates of lipids and protein.Their function is to transport lipids (fats) around the body,in the bloodstream,and to the cells where its required.Apart from this,it also carries triglycerides,phospholipids and fat soluble vitamins.

Lipoprotein is composed of a hydrophobic core that is made up of polyunsaturated fatty acids and cholesterol molecules,along with a lipid membrane that contains protein called apolipoproteins.

There are 4 major classes of lipoprotein:

•chylomicrons

•very low density lipoprotein(VLDL)

•high density lipoprotein (HDL)

•low density lipoprotein(LDL)

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3 years ago
Quiz 4 : Taxonomy and origins
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Taxonomy is the science of defining and naming groups of biological organisms on the basis of shared characteristics.
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3 years ago
Conjugated enzymes consist of a protein ______ and a nonprotein _____. Multiple Choice apoenzyme; cofactor substrate; enzyme non
notka56 [123]

Answer:

<h2>Apoenzyme </h2><h2>Cofactors</h2>

Explanation:

Conjugated enzymes also known as holoenzyme. Simple enzymes consist of only protein alone  but  the Conjugated enzymes contain protein ( this portion is called Apoenzyme) and nonprotein molecules (this portion is called cofactor). Cofactor help enzymes in their action.

Enzymes are catalyst which increase the rate of a reaction by decreasing the activation energy.

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3 years ago
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Which stage of the human immunodeficiency virus (HIV) would a client with a CD4 T cell count of 325 cells/mm3 be classified
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Based on the CDC guidelines a person with a CD4+ cell count between 200-400 is regarded as being in <u>the second stage</u> of the HIV infection.

Acquired Immunodeficiency Syndrome

Acquired immunodeficiency syndrome (AIDS) is a condition caused by HIV (human immunodeficiency virus). AIDS is a chronic disorder and can become life-threatening for the infected person. The HIV viruses reproduce inside the host and while doing so they destroy the CD4+ immune cells which reduce the person's ability to fight against other diseases.

CD4+ cell count and AIDS

According to the CDC (U.S. Centers for Disease Control and Prevention), HIV infection is categorized into different stages based on the number of CD4+ cells.

  • Stage 1: - CD4+ cell count is more than 500 per microlitre. There are no symptoms or AIDS-related conditions.
  • Stage 2: - CD4+ cell count is more than 500 per microlitre. There are no symptoms or AIDS-related conditions.
  • Stage 3: - The CD4+ cell count falls below 200 and AIDS-related symptoms and conditions are present.  

Learn more about HIV infection here:

brainly.com/question/13662165

#SPJ4

7 0
2 years ago
The descending pathway from the red nucleus to the lower motor neurons is the __________ tract.
m_a_m_a [10]

Descending tracts are the pathways by which motor signals are pass through from the brain to lower motor neurones. Thus, all the neurones within the descending motor system are classed as upper motor neurones. The lower motor neurones then directly innervate muscles to produce movement. Their cell bodies are found in the cerebral cortex or the brain stem, with their axons remaining within the CNS.

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3 years ago
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