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Keycap Digit One

Theme D - Continuity & Change

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Direct Hit

Theme A - Unity & diversity

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Page Facing Up

Theme B - Form & Function

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Pill

Theme C - Interaction &  Interdependence

🌏 Real-world Connection: Imagine you&#39;re building a beaded necklace. Each bead represents an amino acid, and the string represents the polypeptide chain. The beads come with a specific set of instructions on how they should be arranged &ndash; that&#39;s the mRNA! And the machine putting them together bead-by-bead? That&#39;s the ribosome! Let&#39;s dive deep.

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🎉 Fun Fact: Ribosomes are the factories of our cells. They&rsquo;re so crucial that if they went on strike, our cells would be in a pickle! 🥒

<ul>
	<li>🎶 Ribosome Rumble: Translation of mRNA is like a dance, with each step adding a new amino acid to our growing polypeptide chain (the necklace!).</li>
	<li>🦀 Three-Step Shuffle: Each dance move of our ribosome covers three bases on the mRNA, also known as ONE codon.</li>
</ul>

🖼️ Picture this: A dance cycle illustrated in &quot;Figure 13&quot; (Don&#39;t forget to take a

To truly appreciate this intricate dance, let&#39;s follow the journey of a single tRNA molecule through the steps

<ul>
	<li>
	tRNA Matchmaker

	<ul>
		<li>An activating enzyme, like a matchmaker, ensures the right tRNA finds its partner amino acid. This duo is based on the tRNA&#39;s anticodon.</li>
		<li>🍕 Real-world example: It&#39;s like matching the right sauce with your pizza crust. Each sauce (amino acid) has its unique crust (tRNA)!</li>
	</ul>
	</li>
	<li>
	First Date

	<ul>
		<li>The tRNA, proudly carrying its amino acid, enters the ribosome&#39;s A site.</li>
		<li>It pairs up its anticodon with the mRNA&#39;s codon, like two puzzle pieces fitting perfectly.</li>
	</ul>
	</li>
	<li>
	The Big Bond

	<ul>
		<li>The amino acid from the tRNA gets attached to the growing polypeptide chain through a peptide bond.</li>
		<li>The tRNA, like a proud parent, now holds the entire growing polypeptide.</li>
	</ul>
	</li>
	<li>
	Moving On Up

	<ul>
		<li>After bonding, the tRNA moves from the A site to the P site.</li>
		<li>Even though it&#39;s shifted, its anticodon remains paired with the mRNA&#39;s codon.</li>
	</ul>
	</li>
	<li>
	Passing the Baton

	<ul>
		<li>Think of a relay race! The polypeptide held by the first tRNA is passed on to a new tRNA that&rsquo;s now at the A site.</li>
	</ul>
	</li>
	<li>
	Exit Stage

	<ul>
		<li>After handing over the polypeptide, the tRNA moves from the P site to the E (exit) site.</li>
		<li>This movement breaks the bond between the tRNA&#39;s anticodon and the mRNA&#39;s codon, allowing the tRNA to leave the ribosome.</li>
	</ul>
	</li>
	<li>
	Rinse and Repeat

	<ul>
		<li>Another amino acid gets ready to dance the tRNA tango by binding to a new tRNA.</li>
		<li>🔄 And the cycle continues...</li>
	</ul>
	</li>
</ul>

<ul>
	<li>Ribosomes are like dance floors where the tRNA, mRNA, and amino acids groove together to create polypeptides.</li>
	<li>Each dance move is precise and has its rhythm to ensure the protein necklace (or polypeptide chain) is formed perfectly!</li>
</ul>

🎉 Fun homework idea: Try creating a dance mimicking the process of translation!

Unlocking mRNA Translation Step-By-Step Ribosome Journey

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Higher Level

Biology HL

Theme D - Continuity & Change

Unlocking mRNA Translation Step-by-Step Ribosome Journey

Table of content

Stepwise Samba with Ribosomes

Unlock the Full Content!

Theme D - Continuity & Change

Unlocking mRNA Translation Step-by-Step Ribosome Journey

Table of content

Stepwise Samba with Ribosomes

Unlock the Full Content!