📚 Year 9 CCEA Biology: Vocabulary Terminology Quick Memorisation Guide | 九年级CCEA生物：词汇术语速记指南
Welcome to your essential quick memorisation guide for Year 9 CCEA Biology. Mastering key terminology is the foundation for exam success and deeper scientific understanding. This guide organises must-know terms into thematic sections, with clear definitions and powerful memory hooks in both English and Chinese. Let's accelerate your biology vocabulary learning.
欢迎使用九年级CCEA生物的必备词汇速记指南。掌握关键术语是考试成功和深入理解科学的基础。本指南将必知术语按主题分类，提供清晰的定义及中英双语高效记忆技巧。让我们一起加速你的生物词汇学习。
1. Cell Structures and Their Functions | 细胞结构及其功能
Nucleus: The control centre of the cell, containing genetic material (DNA) and directing all cellular activities. Memory trick: 'Nucleus' shares the same root as 'core' – think of a command centre.
细胞核：细胞的控制中心，含有遗传物质（DNA）并指导所有细胞活动。记忆技巧：“核”意味着核心，想象一个指挥中心。
Cytoplasm: A jelly-like substance filling the cell where chemical reactions occur. Cue: 'Cyto-' means cell, '-plasm' means formed material – the cell's factory floor.
细胞质：充满细胞的胶状物质，是化学反应发生的场所。提示：'Cyto-' 表示细胞，'-plasm' 表示形成物 —— 细胞的工厂车间。
Cell membrane: A selectively permeable barrier that controls what enters and leaves the cell. Think of it as a border checkpoint that only allows certain molecules through.
细胞膜：一层选择透过性屏障，控制物质进出细胞。把它想象成一个只允许特定分子通过的边防检查站。
Mitochondria: Organelles where aerobic respiration takes place, releasing energy. Labelled the 'powerhouse of the cell'. Word origin: 'mito-' (thread) + 'chondrion' (granule).
线粒体：进行有氧呼吸、释放能量的细胞器，被称为“细胞的能量工厂”。词源：'mito-'（线）+ 'chondrion'（颗粒）。
Chloroplast: : Found in plant cells; site of photosynthesis. Contains the green pigment chlorophyll that captures light energy. 'Chloro-' = green, '-plast' = organelle.
叶绿体：存在于植物细胞中，是光合作用的场所。含有捕获光能的绿色色素叶绿素。'Chloro-' = 绿，'-plast' = 质体。
Cell wall: A rigid outer layer made of cellulose in plants, algae and fungi. Provides structural support and protection. Unlike the membrane, it is fully permeable.
细胞壁：植物、藻类和真菌中由纤维素构成的坚硬外层，提供结构支撑和保护。与细胞膜不同，它是全透性的。
Vacuole: A large, permanent, fluid-filled sac in plant cells. Stores cell sap and helps maintain turgor pressure. Think 'vacuum' – a storage space.
液泡：植物细胞中一个大的、永久的充满液体的囊，储存细胞液并帮助维持膨压。联想“真空”——一个储存空间。
2. Levels of Organisation | 生命组织的层次
Cell: : The basic structural and functional unit of life. Examples: red blood cell, palisade cell. Remember: 'Cell' = smallest living unit.
细胞：生命的基本结构和功能单位。例如：红细胞、栅栏细胞。记住：细胞是最小的生命单位。
Tissue: A group of similar cells working together to perform a specific function, e.g. muscle tissue. Think of 'tissue' as a team of identical players.
组织：一组相似的细胞共同协作以执行特定功能，例如肌肉组织。把“组织”想象成一支由相同球员组成的团队。
Organ: A structure made of different tissues that work together, like the stomach or leaf. Tissues join forces to make an organ.
器官：由不同组织协同工作构成的结构，如胃或叶。多种组织联合形成器官。
Organ system: A group of organs that coordinate to carry out a major body function, e.g. the digestive system. 'System' signals cooperation.
器官系统：一组协调完成一项主要生命机能的器官，例如消化系统。“系统”意味着协同合作。
Organism: omplete living individual made of one or more organ systems. All systems together form you! Mnemonic: Cells → Tissues → Organs → Systems → Organism.
生物体：由一个或多个器官系统组成的完整生命个体。所有系统组合起来就构成了你！助记：细胞→组织→器官→系统→生物体。
3. Transport Processes in Cells | 细胞中的物质运输
Diffusion: The net movement of particles from a region of higher concentration to a region of lower concentration, down a concentration gradient. It is passive and requires no energy. Examples: oxygen entering blood, carbon dioxide leaving leaves.
扩散：粒子从高浓度区域向低浓度区域的净移动，顺浓度梯度进行。是被动过程，无需能量。示例：氧气进入血液，二氧化碳离开叶片。
Osmosis: A special case of diffusion; the movement of water molecules through a partially permeable membrane from a dilute solution to a more concentrated solution. Mnemonic: 'Osmosis' focuses on 'Os' for 'H₂O'.
渗透：扩散的一种特殊情况；水分子通过半渗透膜，从稀释溶液向较浓溶液移动。助记：'Osmosis' 中的 'Os' 对应水（H₂O）。
Active transport: y (ATP) and carrier proteins. For example, uptake of mineral ions by root hair cells. Key: 'Active' = uses energy.
主动运输：分子或离子逆浓度梯度移动，需要能量（ATP）和载体蛋白。例如根毛细胞吸收矿物质离子。关键：“主动”意味着消耗能量。
| Process | 过程 | Energy needed? | 需要能量？ | Movement | 移动方向 | Membrane | 膜 |
|---|---|---|---|
| Diffusion | No | High → Low conc. | Any permeable |
| Osmosis | No | Water moves to higher solute conc. | Partially permeable |
| Active transport | Yes (ATP) | Low → High conc. | Requires carrier proteins |
4. Biological Molecules and Enzymes | 生物分子与酶
Carbohydrates: Compounds made of carbon, hydrogen and oxygen. Primary energy source. Simple sugars like glucose are monomers; starch and cellulose are complex polymers. 'Carbo-' hints at carbon, 'hydrate' hints at water (hydrogen + oxygen).
碳水化合物：由碳、氢、氧组成的化合物，主要供能物质。葡萄糖等单糖是单体；淀粉和纤维素是复杂的聚合物。'Carbo-' 暗示碳，'hydrate' 暗示水（氢和氧）。
Proteins: de of : Large molecules made of amino acid chains. They build and repair tissues, and enzymes are proteins. Remember 'Protein = building blocks'.
蛋白质：由氨基酸链组成的大分子，用于构建和修复组织，酶也是蛋白质。记住“蛋白质 = 积木”。
Lipids (fats and oils): Water-insoluble molecules composed of fatty acids and glycerol. They provide long-term energy storage and insulation. 'Lipos' is Greek for fat.
脂质（脂肪和油）：由脂肪酸和甘油组成的不溶于水的分子，提供长期能量储存和保温作用。'Lipos' 在希腊语中意为脂肪。
Enzymes: Biological catalysts that speed up chemical reactions without being used up. They are specific to a substrate. Model: lock and key.
酶：生物催化剂，能加速化学反应而自身不被消耗，对底物具有专一性。模型：锁和钥匙。
Active site: The region on an enzyme where the substrate binds. Think of it as a specifically shaped socket. If the shape is altered by heat or pH, the enzyme denatures and the lock and key no longer fit.
活性位点：酶上底物结合的区域，可视为形状特异的插口。如果形状因温度或pH改变，酶会变性，锁和钥匙就不再匹配。
Denatured: Permanent loss of enzyme activity due to disruption of the active site's shape by extreme temperature or pH. Mnemonic: 'De-natured' = nature changed, function lost.
变性：因极端温度或pH破坏了活性位点形状而导致酶活性永久丧失。助记：'De-natured' = 性质改变，功能丧失。
5. Human Digestive System | 人体消化系统
Digestion: The breakdown of large, insoluble food molecules into small, soluble molecules that can be absorbed into the blood. Mechanical (chewing) and chemical (enzymes) digestion work together.
消化：将大的、不溶性食物分子分解为可溶并能被血液吸收的小分子的过程。物理消化（咀嚼）和化学消化（酶）协同作用。
Absorption: The movement of digested food molecules through the wall of the small intestine into the blood. Villi increase the surface area for efficient uptake.
吸收：消化后的食物分子穿过小肠壁进入血液。绒毛增大了吸收表面积。
Villi (singular: villus): Finger-like projections lining the small intestine. They provide a huge surface area and have a rich blood capillary network and a lacteal for lipid absorption. Think 'finger-like absorbers'.
绒毛：小肠内壁的手指状突起，提供巨大的表面积，并有丰富的毛细血管网和吸收脂质的乳糜管。想象“手指状吸收器”。
Enzymes in digestion: Amylase breaks down starch into maltose; protease breaks proteins into amino acids; lipase breaks lipids into fatty acids and glycerol. Rehearse: Amylase aids Starch, Protease processes Protein, Lipase liquefies Lipids.
消化酶：淀粉酶将淀粉分解为麦芽糖；蛋白酶将蛋白质分解为氨基酸；脂肪酶将脂质分解为脂肪酸和甘油。口诀：淀粉酶对淀粉，蛋白酶对蛋白，脂肪酶对脂肪。
Peristalsis: Waves of muscular contraction that push food along the oesophagus and intestines. Imagine squeezing toothpaste through a tube.
蠕动：推动食物沿着食道和肠道前进的肌肉收缩波。想象挤牙膏。
6. Circulatory and Respiratory Systems | 循环与呼吸系统
Heart chambers: The human heart has four chambers: right atrium, right ventricle, left atrium, left ventricle. Atria receive blood; ventricles pump blood out. Memory: 'A' for 'arrival' (atrium), 'V' for 'vacate' (ventricle).
心腔：人的心脏有四个腔室：右心房、右心室、左心房、左心室。心房接收血液，心室泵出血液。记忆：'A' 表示“到达”，'V' 表示“送出”。
Arteries: : Thick-walled, muscular blood vessels that carry blood away from the heart under high pressure. Usually carry oxygenated blood (except pulmonary artery). Think 'Arteries = Away'.
动脉：厚壁、肌肉发达的血管，将血液在高压下从心脏运出。通常输送含氧血（肺动脉除外）。联想“动脉 = Away，离开”。
Veins: Thinner-walled vessels that carry blood towards the heart. They contain valves to prevent backflow. 'Vein' rhymes with 'in' – blood flows in to the heart.
静脉：壁较薄的血管，将血液送回心脏。含有防止回流的瓣膜。'Vein' 与 'in' 押韵——血液流向心脏。
Capillaries: Microscopic blood vessels where gas and nutrient exchange occurs. Their walls are one cell thick for rapid diffusion. 'Capillary' sounds like 'capillary tube' – tiny.
毛细血管：进行气体和营养物质交换的微小血管，管壁仅一个细胞厚，便于快速扩散。'Capillary' 联想到细小管道。
Alveoli (singular: alveolus): ries. Site of gas exchange. Adapted by large surface area, thin walls, moist lining. Think 'alveoli' = 'air-veoli' clusters.
肺泡：肺部被毛细血管包围的微小气囊，气体交换的场所。适应性包括表面积大、壁薄、湿润内衬。想象成葡萄状的空气囊。
Breathing (ventilation): Inspiration (inhaling) – diaphragm contracts and flattens, intercostal muscles lift ribs; expiration (exhaling) – diaphragm relaxes. Mnemonic: 'Inhale – diaphragm down; Exhale – diaphragm up (relax)'.
呼吸（换气）：吸气——膈肌收缩变平，肋间肌提升肋骨；呼气——膈肌放松。助记：“吸气膈肌向下，呼气膈肌回升”。
7. Photosynthesis and Respiration | 光合作用与呼吸作用
Photosynthesis equation: de + water → glucose + oxygen, in the presence of light energy and chlorophyll. Word root: 'Photo-' = light, 'synthesis' = putting together. Plants make their own food using light.
光合作用方程：二氧化碳 + 水 → 葡萄糖 + 氧气，需要光能和叶绿素。词根：'Photo-' = 光，'synthesis' = 合成。植物利用光制造自己的食物。
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
Aerobic respiration: carbon dioxide + water + energy (ATP). The majority of respiration in animals is aerobic.
有氧呼吸：细胞利用氧气从葡萄糖中释放能量的过程。总方程式：葡萄糖 + 氧气 → 二氧化碳 + 水 + 能量（ATP）。动物体内大多数呼吸作用是有氧的。
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy
Anaerobic respiration in animals: y broken down into lactic acid, releasing less energy. It causes muscle fatigue. Remember: 'Anaerobic' = without oxygen.
动物无氧呼吸：当氧气不足时，葡萄糖被部分分解为乳酸，释放较少能量。会导致肌肉疲劳。记住：无氧 = 没有氧气。
Fermentation in yeast: bread-making and brewing. Equation: glucose → ethanol + carbon dioxide (+ little energy).
酵母菌发酵：一种无氧呼吸，葡萄糖转化为乙醇和二氧化碳。用于制作面包和酿造。方程式：葡萄糖 → 乙醇 + 二氧化碳（少量能量）。
8. Ecology and Ecosystems | 生态与生态系统
Habitat: he : The natural environment in which an organism lives. Example: a pond, a log, a leaf surface. 'Habitat' = where it 'habitates'.
栖息地：生物生存的自然环境。例如：池塘、枯木、叶面。'Habitat' 即居住地。
Population: l : All the organisms of the same species living in a particular habitat at the same time. Think 'population = same species group'.
种群：同一时间生活在特定栖息地的同一物种的所有个体。想象“一群人 = 同一物种的群体”。
Community: All the populations of different species living together in a habitat. Combine all populations to make a community.
群落：生活在同一栖息地中所有不同物种种群的集合。把所有种群合在一起就是群落。
Ecosystem: The interaction between a community of living organisms and their non-living (abiotic) environment. Includes temperature, light, soil, water.
生态系统：生物群落与其非生物（非生命）环境之间的相互作用。包括温度、光照、土壤、水。
Producer: : An organism that makes its own food via photosynthesis, e.g. plants, algae. It starts the food chain. 'Producer' = produces organic matter.
生产者：通过光合作用制造自身食物的生物，如植物、藻类，是食物链的起点。'Producer' 生产有机物。
Consumer: An organism that obtains energy by feeding on other organisms. Primary consumers eat producers; secondary consumers eat primary consumers. 'Consumer' consumes others.
消费者：通过取食其他生物获取能量的生物。初级消费者吃生产者；次级消费者吃初级消费者。'Consumer' 消费其他生物。
Decomposer: nisms such as bacteria and fungi that break down dead organic matter, recycling nutrients. 'Decomposer' = decomposing dead material.
分解者：如细菌和真菌等分解死去的有机物、循环养分的生物。'Decomposer' 分解死物。
Food chain and food web: A food chain shows a single linear path of energy flow; a food web is a network of interconnected food chains. 'Chain' is simpler, 'web' is complex.
食物链与食物网：食物链显示单一的能量流动路径；食物网是相互连接的食物链组成的网络。'Chain' 是链，'web' 是网。
Biodiversity: ifferent species living in an ecosystem. High biodiversity makes an ecosystem more stable. 'Bio-' = life, 'diversity' = variety.
生物多样性：生态系统中存在的不同物种的多样性。生物多样性高使生态系统更稳定。'Bio-' = 生命，'diversity' = 多样性。
9. Inheritance and Genetics Basics | 遗传学基础
DNA (deoxyribonucleic acid): The molecule that carries genetic information. Shaped like a double helix. Found in the nucleus on chromosomes.
DNA（脱氧核糖核酸）：携带遗传信息的分子，呈双螺旋结构，位于细胞核的染色体上。
Chromosome: ade of DNA and proteins, carrying many genes. Humans have 46 chromosomes (23 pairs). Think 'chromosome' = coloured body (they stain visibly).
染色体：由DNA和蛋白质组成的线状结构，携带许多基因。人类有46条染色体（23对）。'Chromosome' 意为染色后可见的着色体。
Gene: A section of DNA that codes for a specific protein, determining a characteristic. Consider it a 'recipe' on the DNA strand.
基因：DNA上编码特定蛋白质的一段序列，决定性状。将其看作DNA链上的“食谱”。
Allele: ions of the same gene. For example, the gene for eye colour has blue, brown, etc. alleles. 'Allele' = alternative form.
等位基因：同一基因的不同版本。例如，眼睛颜色基因有蓝色、棕色等等位基因。'Allele' = 备选形式。
Dominant allele: An allele that always expresses itself in the phenotype even if only one copy is present. Represented with a capital letter (B). 'Dominant' dominates over recessive.
显性等位基因：只要存在一个拷贝就总表现出其性状的等位基因，用大写字母表示（如B）。显性压制隐性。
Recessive allele: An allele that only expresses itself when two copies are present (no dominant allele). Shown with lowercase (b). 'Recessive' recedes.
隐性等位基因：只有在两个拷贝都存在（无显性等位基因）时才表达性状的等位基因，用小写字母表示（如b）。隐性退缩。
Homozygous: Having two identical alleles for a trait (BB or bb). 'Homo-' = same. Think 'homozygous = same alleles'.
纯合子：具有两个相同等位基因（BB或bb）。'Homo-' = 相同。纯合子 = 相同等位基因。
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