Answer the following question given this paragraph: Q: The sites of protein synthesis are tiny structures called? Choices: - crystals - protons - prokaryotes - ribosomes A:
ribosomes
Answer the following question given this paragraph: 30.2 Discovery of the Parts of the Atom: Electrons and Nuclei Atoms are composed of negatively charged electrons, first proved to exist in cathode-ray-tube experiments, and a positively charged nucleus. All electrons are identical and have a charge-to-mass ratio of. Q: Atoms are composed of negatively charged electrons and a positively charged what? Choices: - DNA segment - neutron - bond - nucleus A:
nucleus
Q: Answer the following question given this paragraph: An alloy is a mixture composed of two or more elements, at least one of which is a metal. You are probably familiar with some alloys such as brass and bronze. Brass is an alloy of copper and zinc. Bronze is an alloy of copper and tin. Alloys are commonly used in manufactured items because the properties of these metal mixtures are often superior to a pure metal. Bronze is harder than copper and more easily cast. Brass is very malleable and its acoustic properties make it useful for musical instruments. Q: Brass and bronze are examples of what type of mixture composed of two or more elements, at least one of which is a metal? Choices: - halloid - compound - metalloid - alloy A:
A: alloy
Question: Answer the following question given this paragraph: The Two Parts of Photosynthesis Photosynthesis takes place in two stages: the light-dependent reactions and the Calvin cycle. In the light-dependent reactions, which take place at the thylakoid membrane, chlorophyll absorbs energy from sunlight and then converts it into chemical energy with the use of water. The light-dependent reactions release oxygen from the hydrolysis of water as a byproduct. In the Calvin cycle, which takes place in the stroma, the chemical energy derived from the light-dependent reactions drives both the capture of carbon in carbon dioxide molecules and the subsequent assembly of sugar molecules. The two reactions use carrier molecules to transport the energy from one to the other. The carriers that move energy from the light-dependent reactions to the Calvin cycle reactions can be thought of as "full" because they bring energy. After the energy is released, the "empty" energy carriers return to the light-dependent reactions to obtain more energy. Q: The two parts of photosynthesis photosynthesis takes place in two stages: the light-dependent reactions and which cycle? Choices: - colors cycle - klein cycle - dark cycle - calvin cycle A:
Answer: calvin cycle
*Question*
Answer the following question given this paragraph: Water on Earth is billions of years old. However, individual water molecules keep moving through the water cycle. The water cycle is a global cycle. It takes place on, above, and below Earth's surface, as shown in Figure below . Q: What global cycle takes place on, above, and below earth's surface? Choices: - aqua cycle - water flow - water wheel - water cycle A:
**Answer**
water cycle
*Question*
Answer the following question given this paragraph: Amides are actually formed by bringing together an amine-containing molecule and a carboxylic acidcontaining molecule. A molecule of H2O is lost, much like when an ester forms:. Q: Amides are actually formed by bringing together an amine-containing molecule and molecule containing what? Choices: - oxidize acid - polymer acid - Fatty acid - carboxylic acid A:
**Answer**
carboxylic acid