Mini Bell Ringer

​Mini Bell Ringer

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✅ What Students Already Have to Succeed

Based on your sequence (Cell Transport → Pacific NW Energy Flow → Cell Respiration Activity → PhET → Exit Ticket), students already understand:

✔️ Producers vs. consumers and where glucose comes from

They know kelp makes glucose and animals eat it.

✔️ Diffusion (including O₂ diffusion)

The PhET simulation directly rehearses this.

✔️ ATP comes from glucose

This appeared in their “metabolize glucose” setting in the simulation, even if it was abstract.

✔️ Body system connections

Your activity includes respiratory → circulatory → cellular respiration.

These pieces are enough to complete the Cell Respiration & Homeostasis exit ticket.

Reorder

Reorder the following: How O₂ “gets from lungs to cells”

• Diffusion into lungs

• Diffusion into bloodstream

• Delivery by circulatory system

• Diffusion into cells

1

2

3

4

• 1
• 2
• 3
• 4

“Glucose does NOT become ATP inside the membrane — it is broken down inside the mitochondria during cellular respiration.”

Fix:

✔ glucose entering the mitochondria

✔ glucose breaking apart

✔ energy captured in ATP

Students know ATP exists but might not know how glucose → ATP happens.

The PhET simulation never visually shows:

Glucose → ATP connection

“All living things do cellular respiration. Only producers do photosynthesis.”

Fix:

“Plants do photosynthesis”

“Animals do respiration”

They forget plants ALSO do cellular respiration.

Many students think:

Producers AND consumers both use cellular respiration

“Does oxygen need ATP to enter cells? Why or why not?”

Fix:

Especially if they saw Na⁺/K⁺ pumps in the sim right before learning about O₂ movement.

Students may confuse diffusion with active transport

Multiple Choice

“Does oxygen need ATP to enter cells? Why or why not?”

• Yes — oxygen always uses active transport

• No — O₂ enters by simple diffusion

• Yes — only when ATP levels are low

• No — oxygen enters by facilitated diffusion

Hotspot

Where is glucose broken down to make ATP during cellular respiration?

Multiple Choice

Which organisms perform cellular respiration?

• All living organisms (plants AND animals)

• Only plants

• Only animals

• Only producers

Transition

You have completed the Mini Bell Ringer. Now go pick up a green sheet from the basket. Use the following slides to fill out the necessary information about "How producers get glucose to cells".

​Nothing to write here. Just READ.