Podcast
Questions and Answers
In the human body, which vessel carries deoxygenated blood from the body to the heart?
In the human body, which vessel carries deoxygenated blood from the body to the heart?
- Vena Cava (correct)
- Aorta
- Pulmonary Vein
- Pulmonary Artery
What is the primary function of carbohydrates in the body?
What is the primary function of carbohydrates in the body?
- Storing genetic information
- Forming waterproof membranes
- Speeding up chemical reactions
- Providing a primary source of energy (correct)
Which of the following sequences accurately describes the flow of blood after it leaves the lungs?
Which of the following sequences accurately describes the flow of blood after it leaves the lungs?
- Pulmonary artery → Left atrium → Right ventricle → Body
- Pulmonary artery → Right atrium → Left ventricle → Body
- Pulmonary vein → Right atrium → Left ventricle → Body
- Pulmonary vein → Left atrium → Left ventricle → Body (correct)
If a sample results in a milky white color after an ethanol test, which macromolecule is likely present?
If a sample results in a milky white color after an ethanol test, which macromolecule is likely present?
What role do lipids play in the body beyond energy storage?
What role do lipids play in the body beyond energy storage?
Which chamber of the heart initially receives deoxygenated blood from the vena cava?
Which chamber of the heart initially receives deoxygenated blood from the vena cava?
Which macromolecule acts as enzymes to speed up chemical reactions?
Which macromolecule acts as enzymes to speed up chemical reactions?
If a test for simple sugars using Benedict's solution yields a green result, what does this indicate about the sample?
If a test for simple sugars using Benedict's solution yields a green result, what does this indicate about the sample?
What is the role of nucleic acids in cells?
What is the role of nucleic acids in cells?
Which structures within the lungs are the primary sites of gas exchange?
Which structures within the lungs are the primary sites of gas exchange?
Flashcards
Cellular Respiration Formula
Cellular Respiration Formula
Glucose plus oxygen yields carbon dioxide plus water.
Flow of Blood
Flow of Blood
From lungs -> pulmonary vein -> left side of heart -> body -> vena cava -> heart.
Heart Chambers
Heart Chambers
Left/right atria (top chambers) and left/right ventricles (bottom chambers).
Aorta
Aorta
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Pulmonary Veins/Arteries
Pulmonary Veins/Arteries
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Vena Cava
Vena Cava
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Iodine Test
Iodine Test
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Biuret Test
Biuret Test
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Ethanol Test
Ethanol Test
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Benedict's Test
Benedict's Test
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Study Notes
- Carbohydrate plus oxygen forms carbon dioxide plus water
- Glucose plus oxygen forms carbon dioxide plus water
Flow of Blood
- Blood goes from the lungs to the pulmonary vein, then to the left side of the heart
- The left side of the heart pumps blood around the body
- Blood vessels split into smaller vessels, delivering oxygen and nutrients to organs
- Blood depleted of oxygen goes to the vena cava, then mixes in the heart
Major Heart Veins/Chambers
- The heart has four chambers: left/right atrium (top) and left/right ventricle (bottom)
- The right atrium receives deoxygenated blood
- The right ventricle receives oxygen from the right atrium
- The left atrium receives oxygenated blood
- The left ventricle receives oxygenated rich blood from the left atrium, and then pumps it to the entire body
- Aorta sends blood to the body
- Pulmonary veins/arteries: veins send blood to the lungs, arteries send blood back to the heart
- Vena Cava takes blood from the whole body to the heart
Test Solutions
- Iodine tests for starch and turns blue/black if positive
- Burriet tests for protein and turns pink/purple if positive
- Ethanol tests for lipids and turns milky white if positive
- Benedict solution tests for simple sugars/carbs and turns green if positive
- Emsulfication breaks down fats
- Lipids are dairy products, vegetable oil, & steroids
- Starches are bread, potatoes, rice and pasta
- Protein is eggs, dairy products, nuts and tofu
- Simple Sugars are fruits, starchy veggies
Lungs
- The lungs take in air, which goes into the bronchi and bronchioles
- The bronchioles split into small tubes that reach the aveoli, where gas exchange occurs
Macromolecules and Cellular Respiration
- Types of Macromolecules:
- Protein: Eggs, chicken, peas
- Carbohydrates: Starchy food, pasta, rice
- Nucleic Acids: Seafood, Meat, mushrooms
- Lipids: oils and solids, nuts, olives and fats
- Macromolecules are essential for life processes
- Proteins: Act as enzymes, provide structural support, and transmit information
- Carbohydrates: Primary energy source and provide structural support in plant cell walls
- Lipids: Store energy, provide insulation, and form waterproof membranes
- Nucleic Acids: Store genetic information and direct protein synthesis
- Macromolecules are vital for maintaining life by providing structure, energy, helping chemical reactions, and storing genetic information
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