Which of the following is true about such movement

Assignment Help Biology

Reference no: EM1397315

Small molecules move through membranes in different ways -- different for different molecules or compounds, that is.

Which of the following is true about such movement through membranes?

A. Active transport operates against a concentration gradient and requires an energy source, such as ATP.

B. Passive diffusion requires no membrane protein and operates along (rather than against) a concentration gradient.

C. Facilitated transport requires a membrane protein and operates along a concentration gradient.

D. All of the above are true.

Reference no: EM1397315

Questions Cloud

What is the estate tax value of item : Valuation. Beth died on May 5, 2009. Her executor chosen date-of-death valuation. Beth's gross estate included, amid other properties and the items listed below. What is the estate tax value of each item?

Restriction enzymes play role in organism produce protein : How would restriction enzymes play a role in having an organism produce a protein that it normally doesn't make.

What is the wobble hypothesis : Why are tRNAs referred to as adaptor molecules? What aspects of their structure do tRNAs have in common.

Discuss whether james must be able to recover from adam : Discuss whether James must be able to recover from Adam based on a contract for the sale of the car.

Which of the following is true about such movement : Small molecules move through membranes in different ways -- different for different molecules or compounds, that is.

Specification limits set between ounces : The specification limits are set between 15.8 and 16.2 ounces.

Which frameworks for systems is useful : Which of frameworks for systems planning seems most useful to you? Offer the example to support your response.

Forecast sales of cold beverages : Need to come up with a regression model to forecast monthly sales of cold beverages for the next year. What variables might be included in the model?

What is the theoretical minimum amount of glucose : In yeast, ethanol is produced from glucose under anaerobic conditions. What is the maximum amount of ethanol (in millimoles) that could theoretically be produced under the following conditions.

User Account

All Pages