input: OPTIONS:
- chromosomes
- chloroplasts
- nuclei
- ribosomes Now, answer this question: Answer the following question given this paragraph: Ribosomes Ribosomes are the cellular structures responsible for protein synthesis. When viewed through an electron microscope, free ribosomes appear as either clusters or single tiny dots floating freely in the cytoplasm. Ribosomes may be attached to either the cytoplasmic side of the plasma membrane or the cytoplasmic side of the endoplasmic reticulum (Figure 3.7). Electron microscopy has shown that ribosomes consist of large and small subunits. Ribosomes are enzyme complexes that are responsible for protein synthesis. Because protein synthesis is essential for all cells, ribosomes are found in practically every cell, although they are smaller in prokaryotic cells. They are particularly abundant in immature red blood cells for the synthesis of hemoglobin, which functions in the transport of oxygen throughout the body. Q: What term is used to describe the cellular structures responsible for protein synthesis? A:
A:
output: ribosomes

Answer the following question given this paragraph: Cellulose Cellulose, a fibrous carbohydrate found in all plants, is the structural component of plant cell walls. Because the earth is covered with vegetation, cellulose is the most abundant of all carbohydrates, accounting for over 50% of all the carbon found in the vegetable kingdom. Cotton fibrils and filter paper are almost entirely cellulose (about 95%), wood is about 50% cellulose, and the dry weight of leaves is about 10%20% cellulose. The largest use of cellulose is in the manufacture of paper and paper products. Although the use of noncellulose synthetic fibers is increasing, rayon (made from cellulose) and cotton still account for over 70% of textile production. Like amylose, cellulose is a linear polymer of glucose. It differs, however, in that the glucose units are joined by -1,4-glycosidic linkages, producing a more extended structure than amylose (part (a) of Figure 16.11 "Cellulose"). This extreme linearity allows a great deal of hydrogen bonding between OH groups on adjacent chains, causing them to pack closely into fibers (part (b) of Figure 16.11 "Cellulose"). As a result, cellulose exhibits little interaction with water or any other solvent. Cotton and wood, for example, are completely insoluble in water and have considerable mechanical strength. Q: Because the earth is covered with vegetation, cellulose is the most abundant of all what? A:

OPTIONS:
- impurities
- vegetables
- rocks
- carbohydrates

Answer: carbohydrates

Problem: OPTIONS:
- inner ear
- outer ear
- major ear
- middle ear
Q: Answer the following question given this paragraph: Q: In which part of the ear are the vibrations amplified by the malleus, incus, and stapes? A:
Answer: middle ear

Problem:OPTIONS:
- steroids
- epinephrine
- estrogen
- testosterone

Answer the following question given this paragraph: What causes puberty to begin? The hypothalamus in the brain "tells" the pituitary gland to secrete hormones that target the testes. The main pituitary hormone involved is luteinizing hormone (LH) . It stimulates the testes to secrete testosterone. Testosterone, in turn, promotes protein synthesis and growth. It brings about most of the physical changes of puberty, some of which are shown in Figure below . In addition to the changes shown below, during puberty male facial hair begins to grow, the shoulders broaden, and the male voice deepens. You can watch an animation of these and other changes that occur in boys during puberty at the Interactive Body link: http://www. bbc. co. uk/science/humanbody/body/interactives/lifecycle/teenagers/ . Q: What hormone, which is associated with luteinizing hormone and male sexuality, helps bring about physical changes in puberty? A:
****
A: testosterone

Answer the following question given this paragraph: The Formation of Ionic Compounds Binary ionic compounds are composed of just two elements: a metal (which forms the cations) and a nonmetal (which forms the anions). For example, NaCl is a binary ionic compound. We can think about the formation of such compounds in terms of the periodic properties of the elements. Many metallic elements have relatively low ionization potentials and lose electrons easily. These elements lie to the left in a period or near the bottom of a group on the periodic table. Nonmetal atoms have relatively high electron affinities and thus readily gain electrons lost by metal atoms, thereby filling their valence shells. Nonmetallic elements are found in the upper-right corner of the periodic table. Q: Compounds with metals and nonmetals sharing electrons are known as what kinds of compounds? A:
OPTIONS:
- acids
- atoms
- eons
- ions
ions

Answer the following question given this paragraph: Q: What part of a plant, which is attached to its stem nodes, is the "main organ" of photosynthesis? A:
OPTIONS:
- flowers
- roots
- spores
- leaves

Answer:
leaves