Answer the following question given this paragraph: Probably the most important feature of a cell's phospholipid membranes is that they are selectively permeable or semipermeable . A membrane that is selectively permeable has control over what molecules or ions can enter or leave the cell, as shown in Figure below . The permeability of a membrane is dependent on the organization and characteristics of the membrane lipids and proteins. In this way, cell membranes help maintain a state of homeostasis within cells (and tissues, organs, and organ systems) so that an organism can stay alive and healthy. Q: A membrane has what property if it can control what molecules or ions enter or leave the cell? Choices: - indiscreet permeability - impermeability - susceptible permeability - selective permeability A:
selective permeability
Answer the following question given this paragraph: Another obvious change that occurs during puberty is rapid growth. This is called the adolescent growth spurt . In boys, it is controlled by testosterone. The rate of growth usually starts to increase relatively early in puberty. At its peak rate, growth in height is about 10 centimeters (almost 4 inches) per year in the average male. Growth generally remains rapid for several years. Growth and development of muscles occur toward the end of the growth spurt in height. Muscles may continue to develop and gain strength after growth in height is finished. Q: What drives puberty in male humans? Choices: - bloodstream - estrogen - methane - testosterone A:
testosterone
Q: Answer the following question given this paragraph: The modern periodic table is based on atomic number. Elements in each period go from metals on the left to metalloids and then nonmetals on the right. Within groups, elements have similar properties. Q: What is the modern periodic table based on? Choices: - element mass - metallic number - element density - atomic number A:
A: atomic number
Question: Answer the following question given this paragraph: Now we move on to recycle. Sometimes it may be difficult to understand the differences between reusing and recycling. Recycling involves processing used materials in order to make them suitable for other uses. That usually means taking a used item, breaking it down, and reusing the pieces. Even though recycling requires extra energy, it does often make use of items which are broken, worn out, or cannot be reused. Q: What is the process of processing used material into new ones called? Choices: - remake - renew - reuse - recycling A:
Answer: recycling
*Question*
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:
**Answer**
excreted as urine
*Question*
Answer the following question given this paragraph: Scientists classify living things to make sense of biodiversity and who how living things are related. The science of classifying living things is called taxonomy. Q: What is the science of classifying living things is called? Choices: - entomology - methodology - physiology - taxonomy A:
**Answer**
taxonomy