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3 years ago

Compare the major passive and active transport processes that act to move substances through the cell membrane

Biology

1 answer:

nydimaria [60]3 years ago

6 0

Answer:

Active transport requires energy to move molecules across biological membranes and acts against a concentration gradient, while passive transport does not require energy and moves molecules from regions of lower concentration to areas of higher concentration

Explanation:

Both passive and active transport are critical for moving nutrients and waste products in and out the cell, respectively. Passive transport is a process that moves molecules and does not require energy, this process is based on the movement from areas of high concentration to areas of low concentration. The process of passive transport includes 1-simple diffusion, 2- filtration, 3-facilitated diffusion and 4-osmosis.On the other hand, active transport refers to the movement of molecules across membranes by a process that requires energy (generally ATP). Active transport is produced from regions of lower concentration to regions of higher concentration (i.e., against a concentration gradient). This process (transport active) can be divided into primary active transport (non-coupled transport) and secondary active transport (coupled transport).

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alukav5142 [94]

Answer:

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Read 2 more answers

1. What are the independent and dependent variables in each of the experiments?

Dafna1 [17]

The independent variables are temperature, airflow, and light and the dependent variable in each of the experiments is evaporation.
The schematic representation in the diagram helps in the understanding of the setup for the experiments.
The level of temperature, the rate of airflow, and the intensity of light must be controlled in the experiments.
A person will not be confident in experiment 3 results as the temperature is the independent variable that alters the results of evaporation.

<h3>What are the four foremost factors of a managed test?</h3>

When possible, scientists take a look at their hypotheses through the use of managed experiments. A managed test is a systematic take look at executed below-managed conditions, which means that simply one (or a few) elements are modified at a time, even as all others are saved consistently. We'll appear carefully at managed experiments within side the subsequent section.

In the three experiments, the dependent variable is evaporation, as it changes with the change in another variable.

The independent variable in experiment 1 is temperature, experiment 2 is airflow, and experiment 3 is light.

The experiment can be understood better with the representation of the schematic that shows the setup to analyze how the experiment was performed. Therefore the diagram must add the schematic of the experiment.

The controlled items in the experiment are the variables that are set at the particular unit to form the result. the controlled item in experiment 1 is temperature, experiment 2 is airflow from the fan, and experiment 3 is the intensity of light.

The result of experiment 3 is based on the dependence on the intensity of light keeping temperature constant and controlled. If the temperature is not controlled in the experiment then it may lead to an alteration in the results as it depends on both light and temperature.

The flow chart for the increase in pressure affecting the evaporation is given in the image attached.