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Most end-products of complex chemical digestion are described as _________________
small, soluable organic molecules
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In the oxidation of glucose to water and carbon dioxide, enzymes are needed to catalyze the _____________
release of energy by hydrogen removal.
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In animals, which occurs during the synthesis of larger, more complex organic molecules from smaller organic molecules?
Water is released
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In the process of photosynthesis, chloromyl serves as _______________
an energy converter
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Sodium ions are pumped from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of _________________.
Active transport
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What is it called when a cell surrounds small protists and takes them into the cell.
Ingestion
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In humans, what is the ratio of the number of gametes produced from one male primary sex cell to the number of gametes provided from one female primary sex cell?
4:1
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Our throat divides into two separate tubes: the windpipe and the gullet. What prevents food from entering the windpipe?
The epiglotis
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What happens when food reaches the stomach?
Juices mix with the food and stomach muscles squeeze it.
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How does digested food reach the bloodstream?
It is absorbed into the blood through blood vessles.
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What are the waste products of respiration?
Water and carbon dioxide
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The windpipe is protected at the front by ___________
Cartilage
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Air sacs in the lungs are correctly termed _________
Aiveoli
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When inhaling, the chest cavity and the lungs _________
Enlarge
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The stimulus to take a breath is _____________
too much carbon dioxide in the blood.
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Our breathing is controlled by the part of the brain called the ________________
Medula Oblongata
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What part of the blood carries minerals, vitamins, sugar, and other foods to the body's cells?
Plasma
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What happens to blood when it is pumped into the thin-walled blood vessels of the lungs?
Carbon dioxide is replaced with oxygen
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Which statement describes protiens, fats, starches and DNA?
They are complex molecules made of smaller molicules.
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DNA controls cellular activity by directing the synthesis of
Protiens
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What could be used to describe 4 building blocks added together to form 4 blocks connected?
Amino acid molecules to part of a protien.
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What do amino acids make in synthesis?
Enzymes
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