Fill in the blank: Excretion is the removal of _________ of ________ from the human body.

• needed products , digestion

• waste products , metabolism

• waste products, photosynthesis

The kidneys remove the waste product Urine. Select 3 of the following substances that make up urine.

• Urea

• Water

• Salt

• lipids

• carbon dioxide

Sweat is excreted from what organ?

• Liver

• Lungs

• Skin

• Kidneys

The breakdown of excess protein in the liver to urea is know as what process?

• Respiration

• Deamination

• Protein Synthesis

• Ureanation

The lungs excrete which two waste products of respiration? Pick two.

• Water Vapour

• Oxygen

• Carbon Dioxide

• Uric Acid

The kidneys are supplied with blood from the renal artery. Is this blood filtered or unfiltered? Oxygenated or deoxygenated?

• Filtered and oxygenated

• Filtered and deoxygenated

• unfiltered and oxygenated

• unfiltered and deoxygenated

What is labelled A in the diagram?

• Adrenal gland

• Kidney

• Urethra

• Renal Artery

What is labelled B in the diagram?

• Ureter

• Kidney

• Urethra

• Renal Artery

What is the function of B?

• Carries urine from the bladder to the kidney

• carries urine out of the body

• carries urine from the kidney to the bladder

• carries filtered blood from the kidney back to the heart.

What is labelled C in the diagram?

• Ureter

• Bladder

• Urethra

• Renal Artery