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Questions and Answers
What is the main function of glomerular filtration in the kidney?
What is the main function of glomerular filtration in the kidney?
- Transporting oxygen to the cells
- Producing urine
- Filtering out waste products from the blood (correct)
- Reabsorb nutrients into the blood
Why is the afferent arteriole wider than the efferent arteriole in the kidney?
Why is the afferent arteriole wider than the efferent arteriole in the kidney?
- To supply more blood to the renal vein
- To increase blood pressure in the glomerulus (correct)
- To prevent filtration in the glomerulus
- To decrease blood pressure in the glomerulus
What is retained in the blood after glomerular filtration?
What is retained in the blood after glomerular filtration?
- Water and small molecules
- Blood cells and platelets
- Toxins and waste products
- Large plasma proteins and fat molecules (correct)
What is the role of the basement membrane around the glomerular blood capillaries?
What is the role of the basement membrane around the glomerular blood capillaries?
Why is glomerular filtration often referred to as ultrafiltration?
Why is glomerular filtration often referred to as ultrafiltration?
How does glomerular filtration relate to excretion in organisms?
How does glomerular filtration relate to excretion in organisms?
Where does over 80% of the filtrate get reabsorbed into the blood?
Where does over 80% of the filtrate get reabsorbed into the blood?
Which structure reabsorbs 85% of mineral ions by active transport?
Which structure reabsorbs 85% of mineral ions by active transport?
In which segment of the nephron does 100% of glucose and amino acids get reabsorbed?
In which segment of the nephron does 100% of glucose and amino acids get reabsorbed?
Which segment of the nephron reabsorbs 80% of water back into the blood via osmosis?
Which segment of the nephron reabsorbs 80% of water back into the blood via osmosis?
Where do salts (Na+ ions) get reabsorbed by around 85% in the nephron?
Where do salts (Na+ ions) get reabsorbed by around 85% in the nephron?
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