input: OPTIONS:
- proteins
- atoms
- carbohydrates
- mitochondria Now, answer this question: Answer the following question given this paragraph: In stage two, the pyruvate molecules are transported into the mitochondria. The mitochondria are the organelles known as the energy "powerhouses" of the cells ( Figure below ). In the mitochondria, the pyruvate, which have been converted into a 2-carbon molecule, enter the Krebs cycle. Notice that mitochondria have an inner membrane with many folds, called cristae . These cristae greatly increase the membrane surface area where many of the cellular respiration reactions take place. Q: What organelles are known as the energy "powerhouses" of the cells? A:
A:
output: mitochondria

Answer the following question given this paragraph: Molecules within a liquid are pulled equally in all directions by intermolecular forces. However, molecules at the surface are pulled downwards and sideways by other liquid molecules, but not upwards away from the surface. The overall effect is that the surface molecules are pulled into the liquid, creating a surface that is tightened like a film. This phenomenon is referred to as surface tension . Liquids that have strong intermolecular forces, like the hydrogen bonding in water, exhibit the greatest surface tension. Table below shows surface tension values for various common liquids. Q: Surface tension is a property of matter that is in what state? A:

OPTIONS:
- mixture
- water
- Base
- liquid

Answer: liquid

Problem: OPTIONS:
- birth
- mutation
- walking
- puberty
Q: Answer the following question given this paragraph: Q: Both androgen secretion and spermatogenesis occur continuously starting with what? A:
Answer: puberty

Problem:OPTIONS:
- magnetic compounds
- ionic compounds
- functional compounds
- molecular compounds

Answer the following question given this paragraph: Molecular compounds are inorganic compounds that take the form of discrete molecules . Examples include such familiar substance as water (H 2 O) and carbon dioxide (CO 2 ). These compounds are very different from ionic compounds like sodium chloride (NaCl). Ionic compounds are formed when metal atoms lose one or more of their electrons to nonmetal atoms. The resulting cations and anions are electrostatically attracted to each other. Q: What are inorganic compounds that take the form of discrete molecules called? A:
****
A: molecular compounds

Answer the following question given this paragraph: Q: Arteries, veins, and capillaries are the three main types of what? A:
OPTIONS:
- blood shapes
- cell structures
- blood pathways
- blood vessels
blood vessels

Answer the following question given this paragraph: To understand the differences between nuclear fission and fusion. Nuclear reactions, like chemical reactions, are accompanied by changes in energy. The energy changes in nuclear reactions, however, are enormous compared with those of even the most energetic chemical reactions. In fact, the energy changes in a typical nuclear reaction are so large that they result in a measurable change of mass. In this section, we describe the relationship between mass and energy in nuclear reactions and show how the seemingly small changes in mass that accompany nuclear reactions result in the release of enormous amounts of energy. Q: The energy changes in what reactions are enormous compared with those of even the most energetic chemical reactions, and they result in a measurable change of mass? A:
OPTIONS:
- molecular reaction
- metabolic reaction
- methane combustion
- nuclear reactions

Answer:
nuclear reactions