<div data-offset-key="fkkab-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">13 Excretion in Humans</div>

<div data-offset-key="82o1l-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">Excretion in Humans</div>

<div data-offset-key="8t5db-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">1. State that carbon dioxide is excreted through the lungs.</div>

<div data-offset-key="2mc9a-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">2. State that the kidneys excrete urea and excess water and ions.</div>

<div data-offset-key="3q5ql-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">3. Identify in diagrams and images the kidneys, ureters, bladder, and urethra.</div>

<div data-offset-key="135fi-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">4. Identify in diagrams and images the structure of the kidney, limited to the cortex and medulla.</div>

<div data-offset-key="e2b2h-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">5. Outline the structure and function of a nephron and its associated blood vessels, limited to:</div>

<div data-offset-key="4e3ab-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">▪ The role of the glomerulus in the filtration from the blood of water, glucose, urea, and ions.</div>

<div data-offset-key="7vnfd-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">▪ The role of the nephron in the reabsorption of all of the glucose, some of the ions, and most of the water back into the blood.</div>

<div data-offset-key="br5ap-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">▪ The formation of urine containing urea, excess water, and excess ions (details of these processes are not required).</div>

<div data-offset-key="3fsol-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">6. Describe the role of the liver in the assimilation of amino acids by converting them to proteins.</div>

<div data-offset-key="2f0rv-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">7. State that urea is formed in the liver from excess amino acids.</div>

<div data-offset-key="ec1mr-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">8. Describe deamination as the removal of the nitrogen-containing part of amino acids to form urea.</div>

<div data-offset-key="2ajq3-0-0" class="public-DraftStyleDefault-block public-DraftStyleDefault-ltr">9. Explain the importance of excretion, limited to the toxicity of urea.</div>