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Click. Biology

Click. Biology

Click. Biology

Click. Biology

Click. Biology

Click. Biology

Click. Biology

Click. Biology

Red blood cells transport oxygen cell surface membrane cytoplasm contains no nucleus allows more

Red blood cells transport oxygen cell surface membrane cytoplasm contains no nucleus allows more room for haemoglobin cytoplasm contains haemoglobin is a protein which carries the oxygen molecules bi-concave disc shape increases surface area over which absorption of oxygen can occur Click. Biology

Ciliated cells move bacteria and dust away from the lungs cilia Cilia are small

Ciliated cells move bacteria and dust away from the lungs cilia Cilia are small extensions of the cell. They beat rhythmically to sweep mucus, which has trapped bacteria and dust, away from the lungs nucleus magnification X 3000 Click. Biology

Xylem vessels transport water and minerals up the plant xylem vessels are continuous tubes

Xylem vessels transport water and minerals up the plant xylem vessels are continuous tubes xylem vessel no cytoplasm hollow: allows for continuous flow of water and dissolved mineral ions lignin water-proof and strong; helps support the plant cross-section longitudinal section Click. Biology

Root hair cells absorb minerals and water from the soil Cross-section of a root

Root hair cells absorb minerals and water from the soil Cross-section of a root hair cell cytoplasm contains no chloroplasts as no photosynthesis is needed cell membrane semi-permeable, so will allow water and mineral ions into the cell root hair increases surface area for absorption of water and mineral ions Click. Biology

Complete the following sentences to compare and contrast plant and animal cells: • Plant

Complete the following sentences to compare and contrast plant and animal cells: • Plant and animal cells are similar because they have… • However, they are different because … Click. Biology

 • Plant and animal cells are similar because they have A NUCLEUS, CELL

• Plant and animal cells are similar because they have A NUCLEUS, CELL MEMBRANE, CYTOPLASM AND MITOCHONDRIA • However, they are different because ONLY PLANTS HAVE A CELL WALL, CHLOROPLASTS AND A VACUOLE Click. Biology

Supporting a Plant Use the following sentence fragments to produce a short paragraph outlining

Supporting a Plant Use the following sentence fragments to produce a short paragraph outlining why plant cells are different to animals cells. Click. Biology

 • Plants have no skeleton for support. The rigid cell wall gives the

• Plants have no skeleton for support. The rigid cell wall gives the cell strength. The vacuole keeps the cell inflated. • Plants make their own food using photosynthesis. They have chloroplasts with chlorophyll in them to do this. Click. Biology

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