1. The Importance of Excreting Waste

2. The Importance of Excreting Waste
As heterotrophs, our cells are able to breakdown complex compounds (food) into simpler compounds. The result of metabolic processes is the production of waste products. Some examples of waste products in our body are CO2, urea, ammonia, uric acid, lactic acid, bile pigment and solid waste. The kidneys, lungs, liver and large intestines have a specific function and help to eliminate waste products.
As heterotrophs, our cells are able to breakdown complex compounds (food) into simpler compounds. The result of metabolic processes is the production of waste products. Some examples of waste products in our body are CO2, urea, ammonia, uric acid, lactic acid, bile pigment and solid waste. The kidneys, lungs, liver and large intestines have a specific function and help to eliminate waste products.
As heterotrophs, our cells are able to breakdown complex compounds (food) into simpler compounds. The result of metabolic processes is the production of waste products. Some examples of waste products in our body are CO2, urea, ammonia, uric acid, lactic acid, bile pigment and solid waste. The kidneys, lungs, liver and large intestines have a specific function and help to eliminate waste products.
As heterotrophs, our cells are able to breakdown complex compounds (food) into simpler compounds. The result of metabolic processes is the production of waste products. Some examples of waste products in our body are CO2, urea, ammonia, uric acid, lactic acid, bile pigment and solid waste. The kidneys, lungs, liver and large intestines have a specific function and help to eliminate waste products.
Some of the more toxic waste products are those produced by the breakdown of protein. This process is called deamination, and occurs in the liver. The kidney removes the waste from the body.
Some of the more toxic waste products are those produced by the breakdown of protein. This process is called deamination, and occurs in the liver. The kidney removes the waste from the body.
Some of the more toxic waste products are those produced by the breakdown of protein. This process is called deamination, and occurs in the liver. The kidney removes the waste from the body.

3. The Urinary System
The primary function of the urinary system is to filter nitrogenous wastes (ammonia, urea and uric acid) out of the blood and eliminate the resulting urine from the body. A large blood vessel, the renal artery, carries blood into the kidneys.
The primary function of the urinary system is to filter nitrogenous wastes (ammonia, urea and uric acid) out of the blood and eliminate the resulting urine from the body. A large blood vessel, the renal artery, carries blood into the kidneys.
renal artery
cortex
kidney
medulla
renal pelvis
Figure 5/6 pg. 448

4. The Urinary System
At any point in time, the kidneys contain about 25% of your blood. The blood is “filtered” in the kidney and leaves through the renal vein. The functional unit of the kidney is called the nephron. Your kidneys contain about a million nephrons, which send urine to the renal pelvis, then through the ureter to the bladder. Urine leaves the body through the urethra.
At any point in time, the kidneys contain about 25% of your blood. The blood is “filtered” in the kidney and leaves through the renal vein. The functional unit of the kidney is called the nephron. Your kidneys contain about a million nephrons which send urine to the renal pelvis, then through the ureter to the bladder.
At any point in time, the kidneys contain about 25% of your blood. The blood is “filtered” in the kidney and leaves through the renal vein. The functional unit of the kidney is called the nephron. Your kidneys contain about a million nephrons which send urine to the renal pelvis, then through the ureter to the bladder.
At any point in time, the kidneys contain about 25% of your blood. The blood is “filtered” in the kidney and leaves through the renal vein. The functional unit of the kidney is called the nephron. Your kidneys contain about a million nephrons, which send urine to the renal pelvis, then through the ureter to the bladder. Urine leaves the body through the urethra.
At any point in time, the kidneys contain about 25% of your blood. The blood is “filtered” in the kidney and leaves through the renal vein. The functional unit of the kidney is called the nephron. Your kidneys contain about a million nephrons which send urine to the renal pelvis, then through the ureter to the bladder.
renal artery
cortex
renal vein
kidney
medulla
ureter
bladder
ureter
renal pelvis
renal pelvis
urethra
Figure 5/6 pg. 448

5. Read pgs Do #1-4 pg 454