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Biology End of Term Assessment: Cell Structure, Specialised Cells, Diffusion, Osmosis, DNA

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Biology End of Term Assessment: Cell Structure, Specialised Cells, Diffusion, Osmosis, DNA

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Questions and Answers

______ structure and function are studied in Biology.

Cell

______ Cells are cells with specific functions.

Specialised

______ is the movement of molecules from high concentration to low concentration.

Diffusion

A process like ______ helps maintain water balance in cells.

Osmosis Signup and view all the answers

The ______ carries genetic information in cells.

DNA Signup and view all the answers

Explain the similarities and differences between animal and plant cells in terms of structure and function.

Similarities: both have cell membrane, cytoplasm, and nucleus. Differences: plant cells have cell wall, chloroplasts, and large central vacuole. Signup and view all the answers

Describe the structure and function of a neuron, highlighting its specialized features.

Neurons have dendrites, cell body, and axon. They transmit electrical impulses in one direction. Signup and view all the answers

Explain how diffusion plays a role in gas exchange in the alveoli of the lungs.

Oxygen diffuses from the alveoli into the blood, while carbon dioxide diffuses from the blood into the alveoli. Signup and view all the answers

Discuss the significance of osmosis in maintaining turgidity in plant cells.

Osmosis helps plant cells maintain their shape and rigidity by regulating water uptake and pressure. Signup and view all the answers

Explain the structure of DNA and how it carries genetic information in cells.

DNA is a double helix made of nucleotides. It carries genetic information through sequences of nucleotide bases. Signup and view all the answers