In I/GCSE Biology, it is important to remember the topic regarding mitosis and meiosis. Let's get started!!!! 😁

• Water and substances dissolved in the water are transported around plants in veins. Veins contains vessels called xylem and phloem.

Xylem:

• Carries water and dissolved mineral ions up to the leaves

Phloem:

• Sucrose is dissolved in water and carried up and down the plant

Transpiration ➡️ the evaporation of water from inside leaves out into the air.

• It causes water to move up the plant from the roots and causes more water to enter the roots by osmosis.

Climatic factors that impact transpiration:

• High temperature
• Light
• Wind
• Low humidity

In I/GCSE Biology, you should understand these basic concepts!!!!!

Diffusion:

• Move along concentration gradient
• No energy needed
• High to low

Active transport:

• Move against concentration gradient
• Energy needed

• Osmosis is the diffusion of molecules from a high to a low concentration across a partially permeable membrane.
• It is a special case of diffusion, the diffusion of water.

Partially permeable ➡️ only lets in certain substances (cell membrane)

How are root hair cells adapted to take up water by osmosis?

• Have long extensions that increase surface area
• Large surface area where osmosis can take place

And we're done with this topic! Well Done!

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Drafted by Alyssa (Biology)

References:

1. "Xylem and Phloem", https://www.sciencefacts.net/wp-content/uploads/2020/09/Xylem-and-Phloem.jpg
2. "Transpiration", https://image.shutterstock.com/image-vector/transpiration-vector-illustration-labeled-educational-260nw-1691929285.jpg
3. "What does transpiration rate depend", https://i.pinimg.com/originals/69/ee/48/69ee486d8945193459cd6e816ba78b56.jpg
4. "Diffusion". Photo from the internet.
5. "Active Transport", https://i.ytimg.com/vi/EmPfjfmw_O8/hqdefault.jpg
6. "Osmosis". Photo from the internet.
7. "Root hair cells", https://slideplayer.com/13773525/85/images/slide_1.jpg