5D: The excretory system

Question 1

What is a nephron

Answer 1

Is the functional unit of the kidney that filters blood

Question 1

Structure of the nephron

Answer 1

Nephron diamgram.docx

Question 2

Glomerulus

Answer 2

Network of capillaries that is encapsulated by the Bowman’s Capsule. –> collects filtered blood

Question 3

Bowman’s Capsule

Answer 3

First section of the nephron which collects filtered blood from capillaries of the glomerulus.

Question 4

Loop of Henle

Answer 4

U-shaped section of the nephron that descends into the medulla and regulates salt + water balance.

Question 5

Collecting duct

Answer 5

Final section of the nephron. Fine-tunes filtrate composition. Delivers urine to the bladder.

Question 6

What is the function of the Kidney

Answer 6

To filter blood

Question 7

Kidneys do what and produce what

Answer 7

Kidneys regulates water levels (including salts, glucose, ETC), produce urine and filtering blood

Question 8

How do kidneys regulate water levels

Answer 8

via active and passive transport

Question 9

TRUE OR FALSE: Approximately one million nephrons in each kidney

Answer 9

TRUE

Question 10

What is the Cortex

Answer 10

Is the outer/covering layer of the kidney

Question 11

What is the Medulla

Answer 11

Is the inner part/layer of the kidney (helps regulate the concentration of urine by filtering out water, salts and acid)

Question 12

TRUE OR FALSE: Carbs and Fats are harder to breakdown than proteins

Answer 12

FALSE

Question 13

The Urethra is

Answer 13

the tube that urine comes out of