Week 4 >> Assessment
Which of the following are the main algae species currently used for commercial use?
Algae is used to create thickening agents for food and cosmetics.
Lipids can account for over 50% of the dry weight of microalgae.
Fatty acids are components of lipids.
In a fatty acid molecule, the carbon found at the beginning near the carboxyl terminal is known as the omega carbon.
It is known as the alpha. The carbon at the end is known as the omega.
Which of the following are health issues that a diet with omega-3 fatty acids can help?
Humans are able to synthesize important fatty acids such as EPA and DHA.
We cannot, we need to supplement our diet to include these fatty acids.
Wild marine fish are primary producers of omega-3 fatty acids.
Marine algae are and fish accumulate the fatty acids through the food web.
Currently, the majority of commercially produced omega-3 fatty acid from micro-algae is done heterotrophically.
In the UCSD algae genetic modification field trial, the genetically-modified strain accumulated fatty acids as much as it did in the lab.
While it did still accumulate more fatty acids than the wild type, it was not as dramatic as in lab settings.
In the UCSD algae genetic modification field trial, the genetically modified algae did not disperse beyond the cultivation pond.
It was found in all of the target ponds as far as 50 meters to the north and east.
Introduction of the genetically-modified algae did not have an effect on algae biomass or algae species diversity of the ecology of bodies of water in San Diego County.
Once a company proves the safety of a product and receives GRAS status, they have exclusive rights to sell that product.
Once a product receives GRAS status, anyone can sell that product.
Which of the following are regulated under the Federal Food, Drug, and Cosmetic Act?
What does GRAS stand for?
Spirulina has GRAS status.
Spirulina has been consumed for centuries.
Which of the following are ways to have a food product be generally recognized as safe?