Btec Applied Science Unit One Biology Exam 2025 With Correct Answers.

Btec Applied Science Unit One Biology
Exam 2025 With Correct Answers




What is the function of the mitochondria? - correct answer cellular respiration
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What is the function of the ribosomes? - correct answer protein synthesis
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What is the function of the smooth endoplasmic reticulum? - correct answer Synthesis and transport of lipids
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and carbohydrates
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What is the function of the Golgi apparatus? - correct answer Modified and packaged proteins into vesicles for
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transport



What is the function of the lysosomes? - correct answer Digests old cell material and waste
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What is the function of the centrioles? - correct answer Form into spindle fibres for cell division
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What is the function of the chloroplasts? - correct answer photosynthesis
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, What is the function of the tonoplasts? - correct answer The membrane around the vacuole to keep it together
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What is the function of the vacuole? - correct answer Maintain turgid pressure in the plant cell
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What is the function of the plasmodestmata? - correct answer To allow materials to pass through the cell wall
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What is the function of the amyloplasts? - correct answer Starch synthesis and storage
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Name three organelles which are only in plant cells - correct answer Vacuole, chloroplasts, cell wall
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Define eukaryotic cells - correct answer Are part of a multicellular organisms
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Define prokaryotic cells - correct answer Are unicellular organisms
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Name two differences between eukaryotic and prokaryotic cells? - correct answer Eukaryotic has a nucleus but
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prokaryotic doesn't my eukaryotic has a membrane bound organelles while prokaryotic doesn't
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What two dyes are used to show gram positive and gram negative bacteria? - correct answer Crystal violet and
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safranin



Describe the difference between gram positive and gram negative? - correct answer Gram negative has thin cell
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walls so the ethanol washes out the crystal violet, so they appear safranin pink. Gram positive appears purple
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Describe the key features of a sperm cell? - correct answer Across one to penetrate the egg, tail for swimming,
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lots of mitochondria for energy
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Describe the features of egg cells? - correct answer Hormones to attract the speed, zona pellucuda to protect
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the egg, corona radiate to supply protein to developing foetus
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What is TEM? - correct answer Transmission electron microscope
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