Podcast
Questions and Answers
Which of the following elements are not among the 6 elements that make up 96% of a cell's composition?
Which of the following elements are not among the 6 elements that make up 96% of a cell's composition?
- Sodium (correct)
- Nitrogen
- Phosphorus
- Carbon
What is the primary source of carbon for heterotrophs?
What is the primary source of carbon for heterotrophs?
- Nucleic acids and sugars
- Proteins and lipids
- Organic molecules produced by other living organisms (correct)
- Inorganic molecules such as COâ‚‚
What is the primary function of micronutrients in microbial nutrition?
What is the primary function of micronutrients in microbial nutrition?
- Enzyme function and maintenance of protein structure (correct)
- DNA replication and cell division
- Cell structure and metabolism
- Energy production and carbohydrate synthesis
What is the term for microorganisms that derive their energy from organic compounds and their carbon source from inorganic compounds?
What is the term for microorganisms that derive their energy from organic compounds and their carbon source from inorganic compounds?
What is the approximate percentage of water in the cytoplasm of a microorganism?
What is the approximate percentage of water in the cytoplasm of a microorganism?
What is the primary source of nitrogen for heterotrophs?
What is the primary source of nitrogen for heterotrophs?
What is the role of sulfur in proteins?
What is the role of sulfur in proteins?
What is the characteristic of facilitated diffusion?
What is the characteristic of facilitated diffusion?
What is the effect of a hypertonic solution on a cell?
What is the effect of a hypertonic solution on a cell?
What is the term for the transport of molecules against a concentration gradient, requiring energy and carrier proteins?
What is the term for the transport of molecules against a concentration gradient, requiring energy and carrier proteins?
