cells and biochemistry

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• Mathematics
• Further Education (Key Stage 5)

cells and biochemistry

Cell structure: organelles like the nucleus, mitochondria, ribosomes, and cell membrane

1. Differences between cell types: prokaryotic vs eukaryotic cells, plant vs animal cells

2. Cell membrane & transport: diffusion, osmosis, active transport

3. Cell division: mitosis (growth/repair) and meiosis (gamete formation)

4. Cell communication: how cells send and receive signals

5. Microscopy: how scientists observe cellst

cell biology

please note.

1. Biological molecules (macromolecules):

   • Proteins (enzymes, structure)

   • Carbohydrates (energy)

   • Lipids (fats, membranes)

   • Nucleic acids (DNA & RNA)

2. Enzymes: how they speed up chemical reactions

3. Metabolism:

   • Cellular respiration (how cells make ATP/energy)

   • Photosynthesis (in plants)

4. Chemical bonds & reactions: covalent, ionic, hydrogen bonds

5. pH and buffers: how cells maintain stable conditions

6. Energy in biology: ATP and how energy is stored and transferred

biochemistry

what did we learn from this video?

Do enzymes speed up chemical reactions in cells?

Category 1

Category 2

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Cell Biology – focuses on the structure and function of cells

Biochemistry – focuses on the chemical processes and molecules inside cells

we are going to have a mini quiz.To answer those questions, you only need a few key ideas. Once you know these, you can figure out every answer:

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🧠 1. What each category means

• Cell Biology → study of cell structure and how cells work

• Biochemistry → study of chemicals and reactions inside living things

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🔬 2. What counts as “structure” (Cell Biology)

You should recognise things like:

• Organelles (nucleus, mitochondria, membrane)

• Cell processes (diffusion, osmosis, cell division)

👉 If it’s about parts of the cell or what the cell does physically, it’s Cell Biology

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⚗️ 3. What counts as “chemistry” (Biochemistry)

You should recognise:

• Molecules (proteins, lipids, DNA)

• Enzymes

• Chemical reactions and energy processes

• Cellular respiration and Photosynthesis

👉 If it’s about molecules or reactions, it’s Biochemistry

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⚖️ 4. The key decision question

For each quiz question, ask yourself:

“Is this about the cell’s structure/function, or about chemicals and reactions?”

• Structure/function → Cell Biology

• Chemicals/reactions → Biochemistry

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That’s really all you need—just those distinctions.
If you want, I can give you a few practice questions where you try deciding yourself.

part one. PLEASE NOTE!!!

part 2 . PLEASE NOTE!!!

To answer those questions, you only need a few key ideas. Once you know these, you can figure out every answer:

---

🧠 1. What each category means

• Cell Biology → study of cell structure and how cells work

• Biochemistry → study of chemicals and reactions inside living things

---

🔬 2. What counts as “structure” (Cell Biology)

You should recognise things like:

• Organelles (nucleus, mitochondria, membrane)

• Cell processes (diffusion, osmosis, cell division)

👉 If it’s about parts of the cell or what the cell does physically, it’s Cell Biology

---

⚗️ 3. What counts as “chemistry” (Biochemistry)

You should recognise:

• Molecules (proteins, lipids, DNA)

• Enzymes

• Chemical reactions and energy processes

• Cellular respiration and Photosynthesis

👉 If it’s about molecules or reactions, it’s Biochemistry

---

⚖️ 4. The key decision question

For each quiz question, ask yourself:

“Is this about the cell’s structure/function, or about chemicals and reactions?”

• Structure/function → Cell Biology

• Chemicals/reactions → Biochemistry

---

That’s really all you need—just those distinctions.

MINIATURE QUIZ!

1. Which category studies the structure and function of cells?
a) Biochemistry
b) Cell Biology

2. Which category focuses on chemical reactions inside living organisms?
a) Cell Biology
b) Biochemistry

3. Studying organelles like the nucleus and mitochondria belongs to:
a) Cell Biology
b) Biochemistry

4. Learning about enzymes and how they work belongs to:
a) Cell Biology
b) Biochemistry

5. Which category would include topics like diffusion and osmosis?
a) Cell Biology
b) Biochemistry

ANSWERS:

1. b) Cell Biology

2. b) Biochemistry

3. a) Cell Biology

4. b) Biochemistry

5. a) Cell Biology

BYE ! SEE YOU NEXT TIME, MY LOVELY STUDENTS.