Answer the following question given this paragraph: An example of this process occurs in the kidney. Glucose, water, salts, ions, and amino acids needed by the body are filtered in one part of the kidney. This filtrate, which includes glucose, is then reabsorbed in another part of the kidney. Because there are only a finite number of carrier proteins for glucose, if more glucose is present than the proteins can handle, the excess is not transported and it is excreted from the body in the urine. In a diabetic individual, this is described as "spilling glucose into the urine. " A different group of carrier proteins called glucose transport proteins, or GLUTs, are involved in transporting glucose and other hexose sugars through plasma membranes within the body. Channel and carrier proteins transport material at different rates. Channel proteins transport much more quickly than do carrier proteins. Channel proteins facilitate diffusion at a rate of tens of millions of molecules per second, whereas carrier proteins work at a rate of a thousand to a million molecules per second. Q: What happens when more glucose is present than the proteins can handle, in the body? Choices: - cultured as urine - metamorphosed as urine - forms urine - excreted as urine A:
excreted as urine
Answer the following question given this paragraph: Spermatogenesis produces four haploid sperm cells, while oogenesis produces one mature ovum. Q: While spermatogenesis produces four haploid sperm cells, oogenesis produces one mature what? Choices: - egg - semen - datum - ovum A:
ovum
Q: Answer the following question given this paragraph: Opposite charges attract and like charges repulse. Q: Opposite charges attract and like charges do what? Choices: - nothing - rebound - impede - repulse A:
A: repulse
Question: Answer the following question given this paragraph: The nitrogen cycle includes air, soil, and living things. Q: The nitrogen cycle includes air, soil, and what? Choices: - water - decomposers - heat - living things A:
Answer: living things
*Question*
Answer the following question given this paragraph: When electrons return to a lower energy level, they emit energy in the form of light. Q: When electrons return to a lower energy level, they emit the excess energy in the form of what? Choices: - weight - electricity - energy - light A:
**Answer**
light
*Question*
Answer the following question given this paragraph: Chemistry is a branch of science. Although science itself is difficult to define exactly, the following definition can serve as starting point. Science is the process of knowing about the natural universe through observation and experiment. Science is not the only process of knowing (e. , the ancient Greeks simply sat and thought), but it has evolved over more than 350 years into the best process that humanity has devised to date to learn about the universe around us. The process of science is usually stated as the scientific method, which is rather naively described as follows: (1) state a hypothesis, (2) test the hypothesis, and (3) refine the hypothesis. Actually, however, the process is not that simple. (For example, I don't go into my lab every day and exclaim, "I am going to state a hypothesis today and spend the day testing it!") The process is not that simple because science and scientists have a body of knowledge that has already been identified as coming from the highest level of understanding, and most scientists build from that body of knowledge. An educated guess about how the natural universe works is called a hypothesis. A scientist who is familiar with how part of the natural universe workssay, a chemistis interested in furthering that knowledge. That person makes a reasonable guessa hypothesisthat is designed to see if the universe works in a new way as well. Here's an example of a hypothesis: "if I mix one part of hydrogen with one part of oxygen, I can make a substance that contains both elements. " Most good hypotheses are grounded in previously understood knowledge and represent a testable extension of that knowledge. The scientist then devises ways to test if that guess is or is not correct. That is, the scientist plans experiments. Experiments are tests of the natural Saylor URL: http://www. saylor. org/books. Q: Science is the process of knowing about the natural universe through observation and this? Choices: - Test - variation - experimental - experiment A:
**Answer**
experiment