Answer the following question given this paragraph: Q: What is a molecule made up of two subunits? Choices: - chloride - enzyme - acid - dimer A:
dimer
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Answer the following question given this paragraph: Small molecules can pass through the plasma membrane through a process called diffusion. Diffusion is the movement of molecules from an area where there is a higher concentration (larger amount) of the substance to an area where there is a lower concentration (lower amount) of the substance ( Figure below ). The amount of a substance in relation to the total volume is the concentration . During diffusion, molecules are said to flow down their concentration gradient , flowing from an area of high concentration to an area of low concentration. Molecules flowing down a concentration gradient is a natural process and does not require energy. Q: What is the process of small molecules passing through the plasma membrane called? Choices: - permeation - absorption - convection - diffusion A:
diffusion
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Answer the following question given this paragraph: From gametogonium (plural, gametogonia ), male and female gametes develop differently - males by spermatogenesis and females by oogenesis. A gametogonium is a germ cell that divides into gametocytes during gametogenesis. Male gametogonia are called spermatogonia , and female gametogonia are called oogonia . However, the following pattern is common for both oogonia and soermatogonia (chromosome numbers depict human chromosomes):. Q: What is a germ cell that divides into gametocytes during gametogenesis? Choices: - cocklebur - gonads - pollenation - gametogonium A:
gametogonium
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Answer the following question given this paragraph: Matter is all the "stuff" that exists in the universe. Everything you can see and touch is made of matter, including you! The only things that aren't matter are forms of energy, such as light and sound. In science, matter is defined as anything that has mass and volume. Mass and volume measure different aspects of matter. Q: In science, anything that has mass and volume is considered what? Choices: - renewable - visible - an element - matter A:
matter
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