Endocrine System and Metabolism Quiz

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Questions and Answers

What hormone plays a crucial role in regulating bleeding after childbirth?

  • Estrogen
  • Follicle-stimulating hormone (FSH)
  • Oxytocin (correct)
  • Progesterone

Which gland is directly controlled by the hypothalamus to regulate hormone release?

  • Thyroid gland
  • Adrenal glands
  • Pituitary gland (correct)
  • Pancreas

Which of the following is NOT a function of oxytocin?

  • Regulates blood sugar levels (correct)
  • Contributes to feelings of bonding and social attachment
  • Stimulates uterine contractions during labor
  • Promotes milk ejection during breastfeeding

What is the primary function of the pituitary gland in the endocrine system?

<p>Producing and releasing hormones that regulate other glands (A)</p> Signup and view all the answers

The hypothalamus's control over hormone release from the pituitary gland is an example of what type of feedback loop?

<p>Negative feedback loop (B)</p> Signup and view all the answers

Which of the following is NOT a function of the kidneys in metabolism?

<p>Synthesizing glucose from amino acids (A)</p> Signup and view all the answers

The kidneys are essential for maintaining the body's internal balance. What term describes this balance?

<p>Homeostasis (A)</p> Signup and view all the answers

What is the primary function of the process called catabolism?

<p>Breaking down complex molecules into simpler ones (B)</p> Signup and view all the answers

Which of the following is an example of a metabolic process that occurs in the kidneys?

<p>Filtration of waste products from the blood (D)</p> Signup and view all the answers

What percentage of energy released during catabolism is not captured by ATP?

<p>60% (B)</p> Signup and view all the answers

Which of the following statements accurately describes cellular respiration?

<p>It is a process that releases energy stored in the bonds of complex molecules. (A), It is a process that breaks down glucose to produce energy in the form of ATP. (B)</p> Signup and view all the answers

Which of the following is NOT a product of cellular respiration?

<p>Sunlight (C)</p> Signup and view all the answers

Which of the following is a key difference between aerobic and anaerobic respiration?

<p>Aerobic respiration requires oxygen, while anaerobic respiration does not. (D)</p> Signup and view all the answers

What is the role of insulin in regulating blood glucose levels?

<p>Insulin promotes the uptake of glucose by cells, lowering blood glucose levels. (C)</p> Signup and view all the answers

Which of the following is a characteristic of diabetes?

<p>The body does not produce or properly utilize insulin, leading to high blood glucose levels. (D)</p> Signup and view all the answers

What is the lymphatic system's primary role in the body?

<p>Maintenance of fluid balance and immune defense (C)</p> Signup and view all the answers

Which of the following is NOT a function of the lymphatic system?

<p>Production of red blood cells (D)</p> Signup and view all the answers

How do white blood cells contribute to the immune response?

<p>All of the above (D)</p> Signup and view all the answers

Which type of white blood cells are responsible for producing antibodies?

<p>Lymphocytes (D)</p> Signup and view all the answers

Why is the lymphatic system considered part of the immune system?

<p>All of the above (D)</p> Signup and view all the answers

What is the name of the disorder caused by a deficiency of Calcitriol in children?

<p>Rickets (A)</p> Signup and view all the answers

Which of the following is a characteristic of Menopause?

<p>Decreased bone density (D)</p> Signup and view all the answers

What is the primary function of Calcitriol in the body?

<p>Facilitating calcium absorption in the intestines (B)</p> Signup and view all the answers

Which of the following is NOT considered a side effect of a decrease in female sex hormones?

<p>Increased energy levels (A)</p> Signup and view all the answers

In which scenario would you expect to see a deficiency of Calcitriol?

<p>Limited exposure to sunlight (D)</p> Signup and view all the answers

What type of cells are present in lymph?

<p>White blood cells (B)</p> Signup and view all the answers

Which of the following best describes the primary function of the lymphatic system?

<p>Maintaining fluid balance and fighting infections (A)</p> Signup and view all the answers

How does the spleen contribute to fighting infections?

<p>All of the above (D)</p> Signup and view all the answers

What is the relationship between lymph and the lymphatic system?

<p>Lymph is a fluid that travels through lymphatic vessels, which are part of the lymphatic system. (B)</p> Signup and view all the answers

How is the spleen involved in the lymphatic system's role in fighting infections?

<p>It filters blood and removes harmful pathogens, which can cause infections. (C)</p> Signup and view all the answers

Flashcards

Oxytocin

A hormone that helps control bleeding after childbirth.

Hypothalamus

A brain region that sends signals to the pituitary gland for hormone control.

Pituitary gland

A gland that releases hormones directed by the hypothalamus.

Hormone release

The process of hormones being secreted into the bloodstream.

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Endocrine system

The system responsible for hormone production and regulation in the body.

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Rickets

A disorder caused by a deficiency of Calcitriol in children, leading to weakened bones.

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Calcitriol deficiency

Lack of the active form of vitamin D, which is essential for bone health.

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Menopause

An age-related phase characterized by the cessation of menstruation and decreased female sex hormones.

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Female sex hormones

Hormones such as estrogen and progesterone that regulate female reproductive functions.

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Aging and hormone change

The natural process where hormone levels decrease, affecting various body functions.

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Kidneys' Role in Metabolism

The kidneys regulate fluid, pH, and electrolytes in the body.

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Energy Capture in Catabolism

40% of energy released during catabolism is captured by ATP.

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Fluid Regulation

Kidneys help maintain proper fluid balance in the body.

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pH Regulation

Kidneys contribute to maintaining the body's pH levels.

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Electrolyte Control

Kidneys regulate key electrolytes essential for cell function.

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Cellular Respiration

The process by which cells convert glucose and oxygen into ATP, releasing carbon dioxide and water.

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ATP

Adenosine triphosphate, the main energy currency of cells, produced during cellular respiration.

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True or False: Cellular respiration provides most of the ATP

True; cellular respiration is the primary means of ATP production in cells.

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Diabetes

A metabolic disease characterized by the body's inability to produce or utilize insulin effectively, leading to high blood glucose levels.

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Insulin

A hormone produced by the pancreas that regulates blood sugar levels by facilitating glucose uptake into cells.

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Lymph

A fluid containing white blood cells that circulates through lymphatic vessels.

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Function of Spleen

Filters blood and helps fight infections in the lymphatic system.

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Lymphatic Vessels

Vessels that transport lymph throughout the body.

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White Blood Cells

Cells in lymph that help the body fight infections.

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Role of Lymphatic System

Helps in immune response and fluid balance in the body.

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Lymphatic system function

The primary role is to transport lymph and support immune function.

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Immune response cells

Cells primarily involved in fighting infections are white blood cells.

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Types of white blood cells

Includes lymphocytes, neutrophils, and monocytes in immune defense.

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Lymphocytes

A type of white blood cell key in adaptive immunity.

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Neutrophils

The most abundant type of white blood cell, respond quickly to infection.

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Study Notes

SQUAD 1

  • Loop of Henle: Composed of thin descending limb and thick ascending limb.
  • Liver Location: Right upper quadrant.
  • Kidney to Bladder Connection: Ureter.
  • Urethral Sphincter: A voluntary muscle (True).
  • Digestive Hormones: The digestive tract signals for hormones related to hunger ("Hungry") and fullness ("Full") (True).
  • Pituitary Hormones: The pituitary gland secretes 9 hormones.

SQUAD 2

  • Hormone Classification: Three types: amino acid derivatives, peptide hormones, and lipid derivatives.
  • Postpartum Hormone: Oxytocin helps control bleeding after childbirth.
  • Hypothalamus Function: Sends signals to control hormone release in the endocrine system.
  • Type 1 Diabetes: Characterized by insulin resistance in the pancreas.
  • Heart Hormone: The heart releases a secondary hormone.

METABOLISM AND ENERGETICS

  • Metabolism Definition: The process of energy transformation in the body.
  • Metabolism Goal: To balance energy production and usage.
  • Anabolism Function: Creates new molecules for growth and repair.
  • Catabolism Molecules: Breaks down fats, carbohydrates, and proteins.
  • Liver Function: Detoxifies harmful substances (True).
  • Kidney Function in Metabolism: Regulates fluid, pH, and electrolytes.
  • ATP Capture: 40% of energy released during catabolism is captured by ATP.

CELLULAR RESPIRATION AND DIABETES

  • ATP Source: Cellular respiration provides most of the ATP in cells (True).
  • Metabolic Disease: Diabetes is a metabolic disease where the body does not produce or use insulin properly.
  • Mitochondrial Disease: Involves the inability of mitochondria to generate energy.

SQUAD 4

  • Mitosis Phases: PMAT (Prophase, Metaphase, Anaphase, Telophase) are the four phases of cell duplication.
  • Atom Components: Proton, neutron, and electron.
  • Muscle Tissue Types: Skeletal, cardiac, and smooth.
  • Stable Molecules: Covalent bonds form when molecules share electrons.
  • Molecule Definition: One or more bonded elements form a molecule.
  • Lymphatic System: A fluid (lymph) containing white blood cells that circulates through lymphatic vessels.
  • Spleen Role: Filters blood and fights infections.
  • Lymphatic System Function: Maintains fluid balance and protects against infection.
  • Immune Response Cells: White blood cells are primarily involved.
  • Lymph Nodes Role: Filter lymph and trap pathogens.
  • T-Cell Function: Attack infected cells.
  • Tonsils Function: Trap and remove pathogens entering the throat.
  • Lymphatic Vessels Function: Collect and transport lymph.
  • Lymphedema: Swelling due to lymph accumulation.
  • Thymus Role: Maturation of T cells.

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