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jonny [76]
3 years ago
9

A membrane that only "lets" certain molecules in while keeping other molecules out is ___ ___.

Biology
2 answers:
Zanzabum3 years ago
8 0
It is selectively permeable
Helga [31]3 years ago
5 0

Answer: selectively permeable

Explanation:

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5. The permease (transporter) allows glucose and Na into the cell requires ATP. True or False?
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Answer: 5. False 6. False

Explanation: The permeases are membrane transport proteins, they're secondary active transporter that allow the movement of a specific molecule in or out of the cell in the direction of a concentration gradient, it is a form of facilitated diffusion and does not require energy. The permease secondary transporter uses the Na ion concentration to move glucose into the cell.

When the ion concentration gradient is set, the concentration of glucose in the cell is higher than the concentration of blood. Glucose will move to the blood by passive diffusion through permease secondary transporter.

The transport mechanism is carrier mediated it does not require energy.

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3 years ago
Explain the processes of transcription and translation
allochka39001 [22]
The process by which DNA is copied to RNA is called transcription, and that by which RNA is used to produce proteins is called translation.
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3 years ago
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A person whose red blood cells agglutinate with anti-B antibodies BUT NOT anti-A antibodies is type _________.
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A person whose red blood cells agglutinate with anti-B antibodies BUT NOT anti-A antibodies is type AB.

<h3>What is an agglutinate?</h3>

Agglutination is the process by which specific antibodies to antigenic components on the surface of red blood cells or inert particles (direct agglutination) or to antigenic components adsorbed or chemically attached to red blood cells or inert particles produce clumps of cells or inert particles (passive hemagglutination and passive agglutination, respectively).

When antibodies on one RBC attach to the antigen on another RBC, a process known as agglutination, globular to amorphous, grape-like aggregates of RBCs are formed. RBC agglutination supports immune-mediated hemolytic anemia when it is present (IMHA). The majority of IMHA instances do not exhibit agglutination, but when it does, immunoglobulin M (IgM) is the most frequently implicated because of its pentavalent nature. Agglutination, however, might be brought on by a very thick IgG antibody coating of the RBC membranes. Agglutination is typically regarded as IMHA's diagnostic sign.

Learn more about Agglutination here:

brainly.com/question/13022582

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6 0
2 years ago
Match the type of water with the location in which it is found. surface water ,water vapor, atmosphere, well ,glacier ,river, gr
musickatia [10]

Answer:

Surface water <---> river

Ground water <------> well

Water vapour <------> atmosphere

Glacier <-------> ice

Explanation:

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3 years ago
Factors derived from factor analysis may themselves be interrelated. When such factors are themselves factor analyzed, the resul
murzikaleks [220]

Resulting factors are called Second-order factors

<h3>What is factor analysis?</h3>
  • Factor analysis is a statistical approach for describing variability in seen, correlated variables in terms of a possibly smaller number of unobserved variables known as factors.
  • It is possible, for example, that fluctuations in six known variables mostly reflect variations in two unseen (underlying) variables.
  • Factor analysis looks for such joint fluctuations in response to latent variables that are not noticed.
  • Factor analysis may be regarded of as a specific form of errors-in-variables models since the observed variables are described as linear combinations of the possible factors plus "error" terms.
  • It may help to deal with data sets where there are large numbers of observed variables that are thought to reflect a smaller number of underlying/latent variables.
  • It is one of the most commonly used inter-dependency techniques and is used when the relevant set of variables shows a systematic inter-dependence and the objective is to find out the latent factors that create a commonality.

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8 0
2 years ago
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