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Andrews [41]
2 years ago
8

_________ are responsible for the transport of substances down a concentration gradient during facilitated diffusion.

Biology
2 answers:
Zielflug [23.3K]2 years ago
8 0

Answer: carrier proteins

Explanation:

Liula [17]2 years ago
5 0
<span>Carrie proteins.................... sorry you have to have a minimum of 20 characters;)</span>
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Unlike b cells, t cells do not display antigen receptors on their surface membranes
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The statement is true
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Why are groups of small cells better than one large cell at moving material in
kirill [66]

The groups of small cells better than one large cell at moving material in  and out because they have a greater surface-to-volume ratio.

<u>Option: A</u>

<u>Explanation:</u>

This happened so as these smaller cells, unlike bigger cells, can quickly and willingly enter and move through the membranes of other cell membranes and permeable coverings. For these smaller and mini cells, it is also important to penetrate and move effectively, distribute and transport products and materials such as nutrients, oxygen and waste across the body without requiring enough energy and saving less space. They are cheaper, more effective and use less room for simple reasons, and most notably deplete less resources.

7 0
2 years ago
Duchenne Muscular Dystrophy (DMD) is an X-linked recessive trait that causes muscular weakness, deterioration of muscle tissue,
Ronch [10]

Answer:

The correct answer is - XDXd and XD Y

Explanation:

Sex-linked disorders are the disorders that are expressed only when there is two copy of the mutated allele or have not masked by the dominant allele of the gene. In DMD, the dominant allele is XD and the mutated allele is Xd. To express it there are the following genotype possible-

in women XdXd, and in men XdY, so these two genotypes are not possible for the parents in this case. If a mutated allele is present with the dominant allele it will be considered as carrier women but diseased will not be found in them.

So the correct genotype would be

mother: XDXd ( a carrier woman)

father : XDY (normal man)

7 0
2 years ago
Which of these statements about eicosanoid synthesis is true?
Blizzard [7]

Answer:

A) An early step in the path to thromboxanes is blocked by ibuprofen.

Explanation:

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Synthesis of  prostaglandins, prostacyclin and thromboxane (subfamilies of eicosanoids) is inhibited by aspirin and some anti-Inflammatory drugs such as ibuprofen and naproxen.

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3 years ago
Which organelle breaks down sugar molecules that supply energy to the cell?
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Your answer would definitely be D - Mitochondria. Mitochondria is the organelle that supplies all the energy for a cell. Hope I was helpful, have a good day! 8)

7 0
2 years ago
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