AQA GCSE Biology B1 Exam Questions and Answers 100% Solved | Graded A+

AQA GCSE Biology B1 Exam Questions

and Answers 100% Solved | Graded A+


What are cells? - ✔✔The building blocks of organisms

Define eukaryotic cell - ✔✔Cells that have a true nucleus

Define prokaryotic cell - ✔✔Cells that do not have a true nucleus

What is in an animal cell? - ✔✔Nucleus, cytoplasm, cell membrane,

mitochondria, ribosomes

What is in a plant cell? - ✔✔Same as animal plus: vacuole, chloroplasts,

chlorophyll, cell wall

What is in a yeast cell? - ✔✔Same as animal plus: temporary vacuole, cell

wall

What is in a bacterial cell? - ✔✔Cytoplasm, cell membrane, cell wall,

ribosomes, chromosomes, plasmid, capsule, flagellum

Function of nucleus - ✔✔The control centre of the cell, contains DNA

Function of cytoplasm - ✔✔Where chemical reactions take place



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, Function of cell membrane - ✔✔Controls the flow of substances into and

out of the cell

Function of mitochondria - ✔✔Releases energy into the cell in respiration

Function of ribosomes - ✔✔Where protein synthesis takes place

Function of vacuole - ✔✔Keeps the cell turgid (filled with plant sap)

Function of chlorophyll - ✔✔Absorbed light energy in photosynthesis

Function of cell wall - ✔✔Provides structure for the cell, made of cellulose

Function of chromosomes - ✔✔Carries genetic information

Function of plasmid - ✔✔Carries genetic information

Function of capsule - ✔✔Protects against phagocytosis

Function of flagellum - ✔✔Helps the cell move

Adaptations of muscle cells - ✔✔Contain proteins that slide over each other

making fibres contract

Contain mitochondria to transfer energy

Store glycogen used in cellular respiration

Adaptations of nerve cells - ✔✔Lots of dendrites to make connections to

other nerve cells



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