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a&P final exam study questions

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a&P final exam study questions
1.
A. Homeostasis is defined as a condition of equilibrium in the body internal environment. For example the internal organs, behaviors, body temperatures. In homeostasis it can be considered as dynamic as it is always changing. The liver, kidneys, autonomic nervous system and endocrine system, and hypothalamus help maintain homeostasis. For example, my brother has imbalance homeostasis due to having seizures. Because his brain is not functioning correctly, his homeostasis is not balance.
B. Medial means closer to the midline of the body. For example, my heart is medial to my lungs. Lateral means it is outside or away from the center of the body. For example, my pinky toe is lateral to my big toe. Supine means lying face up or above. Prone means face down which is the opposite of supine. Proximal is next to or nearest the point of attachment. Distal is away from the point of attachment. For example my elbow is distal to my shoulder but proximal to my wrist.

2.
A. The four types of organics are lipids, proteins, nucleic acids, and carbohydrates. This is because lipids help the body function by storing energy and nutrients, structural components of the cell membrane. Proteins help structure and function throughout the body, and the nucleic acids is the gene that carries genetic information and forms structure within the cells.
B. Dehydration synthesis and Hydrolysis are the opposite of each other. Dehydration synthesis produces water and hydrolysis requires water which means it is the breakdown of a molecule to split the reactant into two or more products.

3.
A. The difference between facilitated diffusion and active transport is facilitated diffusion goes from a high concentration to a low concentration and it does not require ATP. Active transport goes from a low concentration to a high concentration and requires ATP. In active transport the molecules are carried against the force of diffusion however in facilitated diffusion that energy is not

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