Electron microscopy, and the size and scale of cells: including standard form
Quiz by Oak National Academy: GCSE Biology Edexcel Higher
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6 questions
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- Q1Which type of microscope uses electrons to view specimens in 3D?scanning electron microscopetransmission electron microscopelight microscopecompound microscope30s
- Q2In microscopy, what does the term 'resolution' refer to?the distance at which two distinct points of a specimen can still be seenmaking small objects appear larger in order to see more detailthe size of the microscope stagethe brightness of the light source30s
- Q3Which microscope would be most suitable for observing detailed structures within a cell, such as chloroplasts?scanning electron microscopelight microscopecompound microscopetransmission electron microscope30s
- Q4A typical human hair has a diameter of approximately 60 micrometres (µm). What is its diameter in nanometres?6000 nm60 000nm600 nm60 nm30s
- Q5A mitochondrion has a length of 2 micrometres (µm). In a microscopic image, the mitochondrion is represented as 0.5 centimetres. What is the magnification of the mitochondrion in the image?25x2500x25 000x250x30s
- Q6Given an image size of a red blood cell measuring 2 × 10⁻² mm and a magnification factor of 1000x, determine the real size of the red blood cell. Give your answer in metres (m) using standard form.2 × 10⁵ m2 × 10⁻⁸ m2 × 10⁻⁵ m2 × 10⁸ m30s