Question

definition (in your own words) illustration that represents the word examples positive feedback loop non - examples (or the opposite of...) more on other side →

Explanation:

To complete the graphic organizer for "Positive Feedback Loop", we can fill in each section as follows:

Definition (in your own words)

A positive feedback loop is a process where a change in a system leads to further changes that amplify or increase the initial change, rather than reversing it. It often results in a self - reinforcing cycle that can drive a system away from its original state.

Illustration that represents the word

We can draw a simple diagram:

• Start with a box labeled "Initial Change (e.g., increase in a variable)".
• Draw an arrow from this box to another box labeled "Amplifying Factor (e.g., a process that makes the change bigger)".
• Then draw an arrow from the "Amplifying Factor" box back to the "Initial Change" box with a plus sign (+) near the arrow to indicate that the factor amplifies the initial change. For example, if we are talking about the positive feedback loop in childbirth (oxytocin release leads to more contractions, which leads to more oxytocin release), we can draw a circle with "Oxytocin Release" at the center, an arrow going out to "Uterine Contractions" and then an arrow coming back from "Uterine Contractions" to "Oxytocin Release" with a + sign.

Examples

1. Childbirth: During labor, the release of oxytocin causes the uterus to contract. These contractions, in turn, stimulate the release of more oxytocin, which leads to stronger and more frequent contractions. This cycle continues until the baby is born.
2. Ripening of Fruits: When a fruit ripens, it releases ethylene gas. This ethylene gas then causes nearby fruits to ripen as well, and the newly ripened fruits also release ethylene, accelerating the ripening process of the entire batch of fruits.
3. Blood Clotting: When a blood vessel is damaged, platelets start to aggregate at the site of injury. The aggregation of platelets releases chemicals that attract more platelets to the site, leading to the formation of a larger blood clot.

Non - examples (or the opposite of...)

1. Body Temperature Regulation: When the body temperature rises, the body initiates responses like sweating and vasodilation (widening of blood vessels near the skin) to cool down the body and bring the temperature back to the normal range. This is a negative feedback loop as it counteracts the initial change (increase in temperature) rather than amplifying it.
2. Blood Glucose Regulation: After a meal, blood glucose levels rise. The pancreas then releases insulin, which causes cells to take up glucose from the blood, reducing blood glucose levels back to normal. This is a negative feedback mechanism.
3. Regulation of Blood Pressure: If blood pressure increases, the body activates mechanisms such as vasodilation (of blood vessels) and reduced heart rate to bring the blood pressure back to the normal level. This is a negative feedback loop.

Answer:

To complete the graphic organizer for "Positive Feedback Loop", we can fill in each section as follows:

Definition (in your own words)

A positive feedback loop is a process where a change in a system leads to further changes that amplify or increase the initial change, rather than reversing it. It often results in a self - reinforcing cycle that can drive a system away from its original state.

Illustration that represents the word

We can draw a simple diagram:

• Start with a box labeled "Initial Change (e.g., increase in a variable)".
• Draw an arrow from this box to another box labeled "Amplifying Factor (e.g., a process that makes the change bigger)".
• Then draw an arrow from the "Amplifying Factor" box back to the "Initial Change" box with a plus sign (+) near the arrow to indicate that the factor amplifies the initial change. For example, if we are talking about the positive feedback loop in childbirth (oxytocin release leads to more contractions, which leads to more oxytocin release), we can draw a circle with "Oxytocin Release" at the center, an arrow going out to "Uterine Contractions" and then an arrow coming back from "Uterine Contractions" to "Oxytocin Release" with a + sign.

Examples

1. Childbirth: During labor, the release of oxytocin causes the uterus to contract. These contractions, in turn, stimulate the release of more oxytocin, which leads to stronger and more frequent contractions. This cycle continues until the baby is born.
2. Ripening of Fruits: When a fruit ripens, it releases ethylene gas. This ethylene gas then causes nearby fruits to ripen as well, and the newly ripened fruits also release ethylene, accelerating the ripening process of the entire batch of fruits.
3. Blood Clotting: When a blood vessel is damaged, platelets start to aggregate at the site of injury. The aggregation of platelets releases chemicals that attract more platelets to the site, leading to the formation of a larger blood clot.

Non - examples (or the opposite of...)

1. Body Temperature Regulation: When the body temperature rises, the body initiates responses like sweating and vasodilation (widening of blood vessels near the skin) to cool down the body and bring the temperature back to the normal range. This is a negative feedback loop as it counteracts the initial change (increase in temperature) rather than amplifying it.
2. Blood Glucose Regulation: After a meal, blood glucose levels rise. The pancreas then releases insulin, which causes cells to take up glucose from the blood, reducing blood glucose levels back to normal. This is a negative feedback mechanism.
3. Regulation of Blood Pressure: If blood pressure increases, the body activates mechanisms such as vasodilation (of blood vessels) and reduced heart rate to bring the blood pressure back to the normal level. This is a negative feedback loop.