Cellular Respiration Process
1.Explain the process of Cellular Respiration in order. Where does each step occur in a cell, which steps require oxygen, and how many ATP are produced in each step?
Cellular respiration is the breakdown of glucose in the presence of oxygen to yield ATP. Glycolysis is the first stage in the breakdown of glucose and It occurs in the cell’s cytoplasm. It does not require oxygen (anaerobic). This step also occurs in two steps, the energy investment step, and the energy yielding step. This process yields four molecules of ATP but only two are used to begin the process. This first step can also create lactic acid in a process known as fermentation. The second step is the preparatory step. The two pyruvate molecules enter the mitochondria after glycolysis. …show more content…
There are four components in the negative feedback system. Controlled variable is a physical or chemical property that may vary and must be controlled to maintain homeostasis. An example of a controlled variable is body temperature. A sensor also known as the receptor monitors the value of the controlled value and sends the information to the control center. The control center then receives the information from the sensor and compares it to the correct set value. It then signals the effector if necessary. The effector then takes necessary action to correct the imbalance based on the information the control center sends it. An example of negative feedback would be body temperature. The controlled variable is your core temperature, which is the temperature in the center of your body. The temperature sensors in your skin and internal organs monitor your core temperature. Your control center is the hypothalamus in your brain where the sensors transmit signals to via nerves. If your core temperature rises above its set point the hypothalamus then sends fewer nerve impulses to blood vessels in the skin causing blood vessels to dilate. When it does this, it increases blood flow to the skin and promotes heat loss. It activates sweat glands. When you sweat, perspiration evaporates from your skin which helps you cool
Cellular respiration is the breakdown of glucose in the presence of oxygen to yield ATP. Glycolysis is the first stage in the breakdown of glucose and It occurs in the cell’s cytoplasm. It does not require oxygen (anaerobic). This step also occurs in two steps, the energy investment step, and the energy yielding step. This process yields four molecules of ATP but only two are used to begin the process. This first step can also create lactic acid in a process known as fermentation. The second step is the preparatory step. The two pyruvate molecules enter the mitochondria after glycolysis. …show more content…
There are four components in the negative feedback system. Controlled variable is a physical or chemical property that may vary and must be controlled to maintain homeostasis. An example of a controlled variable is body temperature. A sensor also known as the receptor monitors the value of the controlled value and sends the information to the control center. The control center then receives the information from the sensor and compares it to the correct set value. It then signals the effector if necessary. The effector then takes necessary action to correct the imbalance based on the information the control center sends it. An example of negative feedback would be body temperature. The controlled variable is your core temperature, which is the temperature in the center of your body. The temperature sensors in your skin and internal organs monitor your core temperature. Your control center is the hypothalamus in your brain where the sensors transmit signals to via nerves. If your core temperature rises above its set point the hypothalamus then sends fewer nerve impulses to blood vessels in the skin causing blood vessels to dilate. When it does this, it increases blood flow to the skin and promotes heat loss. It activates sweat glands. When you sweat, perspiration evaporates from your skin which helps you cool