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PLTW Biomedical Science Midterm Exam Question and Answers (Latest Update 2024)

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PLTW Biomedical Science Midterm Exam
Question and Answers (Latest Update
2024)
Glucagon - Correct Answer ✅ raises blood sugar levels;
antagonistic to insulin

Glucose Tolerance Test - Correct Answer ✅ tests the body's
ability to metabolize glucose when a dose of glucose is taken
into the stomach. Then the glucose level is determined and
detects diabetes.

Homeostasis - Correct Answer ✅ maintenance of stable
internal physiological conditions

Hormone - Correct Answer ✅ a product of living cells that
circulates in blood and produces a stimulating effect on cells

Insulin - Correct Answer ✅ protein hormone secreted by
pancreas that is essential for the breakdown of glucose in the
blood

Negative Feedback - Correct Answer ✅ homeostasis; a
variable that fluctuates the initial (balance)

,PLTW Biomedical Science Midterm Exam
Question and Answers (Latest Update
2024)

Positive Feedback - Correct Answer ✅ feedback that
increases its output

Type 1 Diabetes - Correct Answer ✅ diabetes that develops
during childhood and doesn't have enough insulin

Type 2 Diabetes - Correct Answer ✅ diabetes that develops
in adults and often in obese individuals; the body is unable to
cooperate with the insulin on the glucose

ATP - Correct Answer ✅ supplies energy for cellular
processes

Dehydration synthesis - Correct Answer ✅ water is used to
break apart 2 molecules

Ionic Bond - Correct Answer ✅ bond where there is an
attraction between opposite charged atoms

,PLTW Biomedical Science Midterm Exam
Question and Answers (Latest Update
2024)
A young patient has an increased thirst and is very fatigued
(no energy). The doctors tell the patient that their pancreas is
not functioning properly. This patient most likely has
______________. - Correct Answer ✅ Type 1 Diabetes

What is negative feedback? - Correct Answer ✅ A response
to a change in the body that counteracts or opposes the
initial change.

What is positive feedback? - Correct Answer ✅ Feedback
that increases the output of a process.

What is an example of positive feedback? - Correct Answer
✅ Blood clotting. The initial clotting triggers the formation of
more clots.

What is an example of negative feedback? - Correct Answer
✅ Insulin response to high blood sugar. If blood sugar rises,
insulin is released to lower blood sugar.

, PLTW Biomedical Science Midterm Exam
Question and Answers (Latest Update
2024)
An out of shape, overweight adult is told that they have
developed diabetes. The patient most likely has
______________. - Correct Answer ✅ Type 2 diabetes.

In Type 1 diabetes, the pancreas does not produce
______________. - Correct Answer ✅ Insulin

What explains the high blood sugar that results from Type 2
diabetes? - Correct Answer ✅ The pancreas makes insulin,
but it is not used effectively by the cell.

A protein hormone released by the pancreas used to control
blood glucose levels. - Correct Answer ✅ Insulin.

What is homeostasis? - Correct Answer ✅ The
maintenance of stable physiological conditions (such as body
temperature) under changing environmental conditions.

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