Answer the following question given this paragraph: Biomass is the mass of biological organisms. It is usually used to describe the amount of organic matter in a trophic level of an ecosystem. Biomass production involves using organic matter ("biomass") from plants to create electricity. Using corn to make ethanol fuel is an example of biomass generated energy. Biomass is generally renewable. Q: Biomass is the mass of biological what? Choices: - tissues - proteins - lipids - organisms A:
organisms

Answer the following question given this paragraph: Phototrophs are organisms that capture light energy and convert it to chemical energy inside their cell. Most phototrophs are the autotrophs that perform photosynthesis, which are also known as photoautotrophs. These organisms have the ability to fix carbon from carbon dioxide into organic compounds, such as glucose. Chemotrophs , on the other hand, do not get their energy from carbon. These are organisms that break down either organic or inorganic molecules to supply energy for the cell through chemosynthesis. Chemotrophs can be either autotrophic (chemoautotrophs) or heterotrophic (chemoheterotrophs). Chemoautotrophs derive their energy from chemical reactions, and synthesize all necessary organic compounds from carbon dioxide. Chemoheterotrophs are unable to fix carbon to form their own organic compounds. The various types of metabolisms are discussed in the Prokaryotes: Nutrition and Metabolism (Advanced) concept. Q: Which organisms capture light energy and convert it to chemical energy inside their cell? Choices: - chloroplasts - pores - sporozoans - phototrophs A:
phototrophs

Answer the following question given this paragraph: The last property above requires some additional explanation. We are all familiar with the process of dissolution on a large scale. If you stir a spoonful of salt into a glass of water, the salt crystals are broken down and seem to disappear into the water. On the atomic level, the dissolution of an ionic compound occurs when water interacts with the ions in the crystal lattice, causing the lattice to break apart ( Figure below ):. Q: On the atomic level, the dissolution of an ionic compound occurs when water interacts with the what in the crystal lattice? Choices: - atoms - fractals - particles - ions A:
ions

Answer the following question given this paragraph: Plasma cells are activated B cells that secrete antibodies. Antibodies are large, Y-shaped proteins that recognize and bind to antigens. Plasma cells are like antibody factories, producing many copies of a single type of antibody. The antibodies travel throughout the body in blood and lymph. Each antibody binds to just one kind of antigen. When it does, it forms an antigen-antibody complex (see Figure below ). The complex flags the antigen-bearing cell for destruction by phagocytosis . Q: What do you call large, y-shaped proteins that recognize and bind to antigens? Choices: - proteins - membranes - parasites - antibodies A:
antibodies