Active Transport worksheet for learning about cellular processes, including diagrams and interactive activities.

Here are the solutions to the questions on the worksheet.

1. Complete the sentence by using the words below:

* First blank: The type of transport being defined is Active.
* Second blank: Active transport moves molecules.
* Third blank: It moves them from a low concentration.
* Fourth blank: To a high concentration.

Completed Sentence:
Active transport is the movement of molecules from a low concentration to a high concentration.

***

2. Colour the words that are about active transport:

You should colour the following bubbles:
* ATP (Adenosine Triphosphate) – This is the energy source used.
* Higher concentration to a lower concentration – *Wait, this is incorrect for active transport.* Active transport goes against the gradient (Low to High). So, do not colour this one. Let's re-read carefully.
* Active Transport moves substances from Low to High concentration.
* Passive Transport (Diffusion/Osmosis) moves substances from High to Low concentration.
* Therefore, the bubble "Higher concentration to a lower concentration" describes passive transport. Do not colour it.
* The bubble "Lower concentration to a higher..." is cut off in the image, but based on the visible text "Lower concentration", this refers to the starting point of active transport. However, looking at the other options:
* Requires energy: Yes, active transport needs energy.
* Active transport: Yes, obviously.
* Cell membrane: Yes, transport happens across the cell membrane.
* Osmosis: No, this is passive transport of water.
* Does not...: Likely says "Does not require energy". No, active transport does require energy.

Let's look at the specific bubbles visible and legible:
1. ATP (Adenosine Triphosphate): Yes. Active transport uses ATP for energy.
2. Higher concentration to a lower concentration: No. This is diffusion/passive transport.
3. Cell membrane: Yes. Transport proteins are located in the cell membrane.
4. Osmosis: No. This is passive transport.
5. Requires energy: Yes. This is the main feature of active transport.
6. Lower concentration to a higher... (partially visible): Yes. This describes the direction of active transport (against the gradient).
7. Does not... (partially visible, likely "require energy"): No.
8. Active transport: Yes.

So, the words/concepts to colour are:
* ATP (Adenosine Triphosphate)
* Requires energy
* Active transport
* Cell membrane (Contextually relevant as the location)
* Lower concentration to a higher [concentration] (The bubble starting with "Lower concentration")

*Note: In many simple worksheets, "Cell membrane" might be considered neutral since all transport happens there, but ATP, Requires Energy, and the Low->High direction are the key defining features.*

Final Answer:
1. Sentence Completion:
Active transport is the movement of molecules from a low concentration to a high concentration.

2. Words to Colour:
* ATP (Adenosine Triphosphate)
* Requires energy
* Active transport
* Lower concentration to a higher [concentration] (The bubble at the bottom left)
* *(Optional depending on teacher's strictness: Cell membrane)*