Year 9 AQA Biology: Vocabulary Quick Memorisation Guide | AQA 九年级生物词汇速记指南

📚 Year 9 AQA Biology: Vocabulary Quick Memorisation Guide | AQA 九年级生物词汇速记指南

Mastering the key terms in Year 9 AQA Biology can transform your understanding and boost your exam confidence. This guide provides memorable explanations, comparisons, and memory tricks for the most important vocabulary, pairing each English definition with a clear Chinese equivalent so that you can learn actively and retain the concepts for the long term.

掌握九年级 AQA 生物学中的关键术语，能彻底改变你对学科的理解并增强考试信心。这份指南针对最重要的词汇，提供好记的解释、对比和记忆窍门，并为每一条英文定义配上清晰的中文对应说法，让你能主动学习并长期记住这些概念。

1. Cells and Organelles | 细胞与细胞器

Nucleus: The control centre of the cell that stores genetic material (DNA). Think “nucleus = the nucleus of an atom – central and essential”.

细胞核：细胞的控制中心，储存遗传物质（DNA）。联想“核”字——事物的核心，必不可少。
Cytoplasm: The jelly-like liquid where most chemical reactions take place. Imagine it as the cell’s “workshop floor”.

细胞质：胶状液体，大多数化学反应在此发生。可以把它想象成细胞里的“工作车间”。
Cell membrane: A selectively permeable barrier that controls what enters and leaves the cell. Remember “membrane = border control”.

细胞膜：具有选择透过性的屏障，控制物质进出细胞。记忆方法：“膜”像边境检查站。
Mitochondria: The organelles that release energy through respiration. Use the rhyme “Mighty mitochondria make energy”.

线粒体：通过呼吸作用释放能量的细胞器。口诀：“Mighty mitochondria（强大的线粒体）制造能量”。
Ribosomes: Tiny structures that synthesise proteins. Think of them as “protein factories”.

核糖体：合成蛋白质的微小结构。视为“蛋白质工厂”。
Cell wall (plant cells): A rigid outer layer made of cellulose that provides support. Remember “wall = strength and shape”.

细胞壁（植物细胞）：由纤维素构成的坚硬外层，起支持作用。联想：“壁”提供强度和形状。
Chloroplasts (plant cells): Sites of photosynthesis, containing green chlorophyll. Link “chloroplast” with “chlorophyll = green solar panel”.

叶绿体（植物细胞）：光合作用的场所，含有绿色的叶绿素。将“叶绿体”和“叶绿素”联想成“绿色太阳能板”。
Permanent vacuole (plant cells): A large sap-filled sac that maintains cell turgor. Picture it as a “water balloon” that keeps the cell firm.

永久液泡（植物细胞）：充满细胞液的大囊泡，维持细胞膨压。想象成一个让细胞挺立的“水气球”。

Animal vs Plant cell – key differences can be summarised as:

动物细胞与植物细胞的关键区别可总结为：

Feature 特征	Animal cell 动物细胞	Plant cell 植物细胞
Cell wall	Absent	Present (cellulose)
Chloroplasts	Absent	Present
Vacuole	Small, temporary	Large, permanent

2. Specialised Cells | 特化细胞

Sperm cell: Streamlined with a tail (flagellum) for swimming and many mitochondria for energy. Mnemonic: “Sperm swim speedily”.

精细胞：流线型，有尾部（鞭毛）便于游动，且含大量线粒体提供能量。口诀：“精子游得快”。
Egg cell (ovum): Large, contains nutrient-rich cytoplasm to support development. Think “egg = packed lunch for embryo”.

卵细胞：体积大，含有营养丰富的细胞质以支持发育。想象“卵就是胚胎的便当盒”。
Ciliated epithelial cell: Has tiny hair-like cilia that sweep mucus and trapped particles. Remember “cilia = tiny brooms”.

纤毛上皮细胞：表面有纤毛，可清扫黏液和捕获的颗粒。联想“纤毛是小扫帚”。
Root hair cell: Long, thin extension to absorb water and minerals from soil. “Root hair = plant’s drinking straw”.

根毛细胞：具有长而薄的突起，从土壤中吸收水分和矿物质。“根毛是植物的吸管”。
Red blood cell: Biconcave shape with no nucleus, packed with haemoglobin to carry oxygen. Picture “flexible oxygen taxis”.

红细胞：双凹圆盘状，无细胞核，充满血红蛋白以运输氧气。想象成“灵活的氧气出租车”。
Nerve cell (neurone): Long axon and branched dendrites to transmit electrical impulses. Think “neurone = electrical wire”.

神经细胞（神经元）：长轴突和分支树突，传递电冲动。视作“生物电线”。

3. Levels of Organisation | 组织层次

Biological organisation progresses from simple to complex. Use the hierarchy: cells → tissues → organs → organ systems → organism.

生物的组织层次由简单到复杂递进。使用层级记忆：细胞 → 组织 → 器官 → 器官系统 → 生物体。

Tissue: A group of similar cells working together. For example, muscle tissue contracts. “Tissue = team of cells”.

组织：一群相似细胞协同工作。例如肌肉组织收缩。“组织即细胞团队”。
Organ: A structure made of different tissues performing a specific function. Stomach – muscle, glandular and epithelial tissues. “Organ = multi-tool”.

器官：由不同组织构成、执行特定功能的结构。如胃含有肌肉、腺体和上皮组织。“器官像多功能工具”。
Organ system: A group of organs working together. The digestive system includes stomach, intestines, etc. “System = assembly line”.

器官系统：一组协同工作的器官。消化系统包括胃、肠等。“系统如同流水线”。

4. Enzymes and Digestion | 酶与消化

Enzyme: A biological catalyst that speeds up reactions without being used up. Remember “enzyme = reaction booster”.

酶：能加速反应而自身不被消耗的生物催化剂。记忆：“酶是反应助推器”。
Active site: The region on an enzyme where the substrate binds. “Lock and key” model – active site is the lock.

活性位点：酶上底物结合的部位。“锁钥模型”——活性位点即锁孔。
Denatured: When high temperature or extreme pH alters the active site shape permanently. Think “denatured = damaged key”.

变性：高温或极端的pH使活性位点形状永久改变。想象“变性就像钥匙弯了”。
Amylase: Enzyme that breaks starch into sugars. Produced in salivary glands and pancreas. “Amylase attacks starch”.

淀粉酶：将淀粉分解为糖的酶，由唾液腺和胰腺分泌。口诀：“淀粉酶分解淀粉”。
Protease: Enzyme that digests proteins into amino acids. Found in stomach and pancreas. “Protease chops protein”.

蛋白酶：将蛋白质分解为氨基酸的酶，存在于胃和胰腺。“蛋白酶切割蛋白质”。
Lipase: Enzyme that breaks fats into fatty acids and glycerol. “Lipase liquefies lipids”.

脂肪酶：将脂肪分解为脂肪酸和甘油的酶。“脂肪酶分解脂肪”。

5. Respiration and Energy | 呼吸与能量

Aerobic respiration: The release of energy from glucose using oxygen. Word equation and symbol equation are essential.

有氧呼吸：利用氧气从葡萄糖中释放能量的过程。文字方程式和符号方程式必须掌握。

Glucose + Oxygen → Carbon dioxide + Water (+ Energy)

葡萄糖 + 氧气 → 二氧化碳 + 水（+ 能量）

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

Anaerobic respiration: Release of energy without oxygen, producing lactic acid in animals or ethanol and CO₂ in yeast. “No oxygen, less energy, but fast!”

无氧呼吸：在缺氧时释放能量，动物体内产生乳酸，酵母产生乙醇和CO₂。“无氧，产能少但速度快！”
Mitochondria: The site of aerobic respiration. Remind yourself “Mighty mitochondria” again.

线粒体：有氧呼吸的场所。再次强化“强大的线粒体”。

6. Photosynthesis and Plants | 光合作用与植物

Photosynthesis: The process where plants use light to convert CO₂ and H₂O into glucose and oxygen. The balanced symbol equation must be memorised.

光合作用：植物利用光能将CO₂和水转化为葡萄糖和氧气的过程。必须记住平衡的符号方程式。

Carbon dioxide + Water → Glucose + Oxygen

二氧化碳 + 水 → 葡萄糖 + 氧气

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Chlorophyll: The green pigment in chloroplasts that captures light energy. “Chlorophyll captures sunlight like a solar panel”.

叶绿素：叶绿体中的绿色色素，捕获光能。“叶绿素像太阳能板一样捕捉阳光”。
Limiting factors: Light intensity, CO₂ concentration and temperature affect the rate. “Three LCT – Light, CO₂, Temperature”.

限制因素：光照强度、CO₂浓度和温度影响光合速率。“三要素LCT：光、CO₂、温度”。

7. Pathogens and Immune System | 病原体与免疫系统

Pathogen: A microorganism that causes disease. Types: bacteria, viruses, fungi, protists. “Pathogen = disease-maker”.

病原体：引起疾病的微生物。类型包括细菌、病毒、真菌、原生生物。“病原体就是致病者”。
White blood cell (phagocyte): Engulfs and digests pathogens. “Phagocyte = cell eater”.

白细胞（吞噬细胞）：吞噬并消化病原体。“吞噬细胞即细胞清道夫”。
Lymphocyte: Produces antibodies specific to an antigen. “Lymphocyte = antibody factory”.

淋巴细胞：产生针对特定抗原的抗体。“淋巴细胞即抗体工厂”。
Antibody: Protein that attaches to antigens on pathogens and marks them for destruction. “Antibody = lock-on missile”.

抗体：与病原体上的抗原结合并标记其摧毁的蛋白质。“抗体像锁定目标的导弹”。
Vaccination: Introducing a harmless form of a pathogen to stimulate antibody production and memory cells. “Vaccination = training the immune army”.

疫苗接种：引入无害形式的病原体以刺激抗体产生和记忆细胞。“接种就是训练免疫军队”。

8. Genetics and Inheritance | 遗传与继承

DNA: The molecule that carries genetic instructions. Full name deoxyribonucleic acid. “DNA = instruction manual”.

DNA：携带遗传指令的分子。全称脱氧核糖核酸。“DNA就是生命的说明书”。
Gene: A segment of DNA that codes for a protein. “Gene = recipe for a trait”.

基因：编码蛋白质的DNA片段。“基因好比性状的配方”。
Chromosome: A tightly coiled structure of DNA found in the nucleus. Humans have 23 pairs. “Chromosome = DNA suitcase”.

染色体：细胞核内紧密缠绕的DNA结构，人类有23对。“染色体像装满DNA的行李箱”。
Allele: Different versions of the same gene. Example: allele for blue eyes vs brown eyes. “Allele = variation of a gene”.

等位基因：同一基因的不同形式，如蓝眼等位基因与棕眼等位基因。“等位基因即基因的变体”。
Dominant / Recessive: A dominant allele is always expressed if present; recessive only shows when two copies are present. “Dominant = boss”.

显性/隐性：只要存在显性等位基因就能表达；隐性需纯合时才表现。“显性就是‘老大’”。
Genotype / Phenotype: Genotype is the allele combination (e.g. Bb); phenotype is the physical appearance (e.g. brown eyes). “Genotype = genetic code, phenotype = what you see”.

基因型/表现型：基因型是等位基因组合（如Bb）；表现型是可观察的性状（如棕色眼睛）。“基因型是基因密码，表现型是外表”。

9. Ecology and Adaptations | 生态与适应

Habitat: The place where an organism lives. “Habitat = home address”.

栖息地：生物居住的地方。“栖息地就是生物的‘住址’”。
Population: All organisms of the same species living in the same area. “Population = neighbourhood of one species”.

种群：生活在同一区域内的同种生物全部个体。“种群是同一个物种的‘社区’”。
Community: All the populations of different species living together. “Community = whole apartment block”.

群落：不同物种的所有种群共同生活在一起。“群落就像整栋公寓楼”。
Ecosystem: A community and its non-living environment (abiotic factors). “Ecosystem = community + weather + soil”.

生态系统：群落及其非生物环境（非生物因素）。“生态系统 = 群落 + 环境”。
Producer: Organism that makes its own food through photosynthesis. “Producer = plant chef”.

生产者：通过光合作用制造自身食物的生物。“生产者即‘植物大厨’”。
Consumer: Obtains energy by eating other organisms. Primary, secondary, tertiary. “Consumer = eater”.

消费者：通过摄食其他生物获取能量，分初级、次级、三级消费者。“消费者即进食者”。
Decomposer: Breaks down dead matter, returning nutrients to the soil. “Decomposer = nature’s recycler”.

分解者：分解死物质，将养分归还土壤。“分解者是大自然的回收站”。
Adaptation: A feature that helps an organism survive. Camouflage, thick fur, large ears. “Adaptation = survival gear”.

适应：帮助生物生存的特征，如伪装、厚毛皮、大耳朵。“适应就是生存装备”。

Published by TutorHao | Biology Revision Series | aleveler.com

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Year 9 AQA Biology: Vocabulary Quick Memorisation Guide | AQA 九年级生物词汇速记指南