English Vocabulary · Grade 10 Live Review Preview

10th Grade Vocabulary Words

Tenth-grade reading asks learners to move confidently among literary analysis, argument, source evaluation, laboratory science, mathematics, computing, history, economics, psychology, philosophy, and the arts. This level emphasizes precise academic language, disciplinary meanings, connotation, word relationships, and the ability to interpret unfamiliar vocabulary in demanding context.

This independently authored 800-word beta curriculum is arranged in twenty-three pages of up to thirty-five words. Pages containing words 1–500 include five cloze questions drawn only from that enhanced range; words 501–800 remain fully visible and editable as list pages while expanded practice is developed. Every row includes an editable subject-field label and a conservative word-study note about transparent affixes, compound structure, capitalization, or dictionary base forms. The cited sources calibrate range and difficulty only; all learner-facing definitions, examples, quizzes, and descriptions are original KSSR copy.

Please note: the vocabulary lists for grades 9~11 have been selected to ensure no overlap with the previous grade level. If the words are too specialized or difficult for you, please go back to grade levels 4~8 and review the words on those pages.

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Words 211–245 of 800
#	Word	Details	Meaning	Sample sentence
211	insulin	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Base-form focus: insulin is the dictionary headword; compare its inflected or derived forms in context.	a hormone that promotes glucose uptake and storage, lowering blood glucose	Insulin signals muscle cells to absorb glucose.
212	glucagon	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Base-form focus: glucagon is the dictionary headword; compare its inflected or derived forms in context.	a hormone that raises blood glucose by promoting the release of stored fuel	Glucagon stimulates the liver to release glucose between meals.
213	feedback inhibition	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: feedback + inhibition. Study the complete expression as one field-specific unit.	regulation in which the product of a pathway slows an earlier step	Feedback inhibition prevents a cell from making more amino acid than it needs.
214	circadian rhythm	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: circadian + rhythm. Study the complete expression as one field-specific unit.	an approximately twenty-four-hour biological cycle influenced by internal timing and environmental cues	Morning light helps reset a person's circadian rhythm.
215	thermoregulation	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	maintenance of body temperature within a functional range	A lizard uses behavioral thermoregulation by moving between sun and shade.
216	osmoregulation	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	control of water and dissolved-solute balance within an organism	Freshwater fish perform osmoregulation by removing excess water.
217	blood glucose regulation	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: blood + glucose + regulation. Study the complete expression as one field-specific unit.	the coordinated processes that keep glucose in the bloodstream within a usable range	Insulin and glucagon work together in blood glucose regulation.
218	homeostatic imbalance	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: homeostatic + imbalance. Study the complete expression as one field-specific unit.	a disruption of the body's normally regulated internal conditions	Severe dehydration creates a homeostatic imbalance in water and electrolyte levels.
219	organ system	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: organ + system. Study the complete expression as one field-specific unit.	a group of organs that cooperate to perform major body functions	The digestive organ system breaks food into absorbable nutrients.
220	epithelial tissue	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: epithelial + tissue. Study the complete expression as one field-specific unit.	closely packed tissue that covers surfaces, lines cavities, and forms many glands	Epithelial tissue protects the outer surface of the skin.
221	connective tissue	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: connective + tissue. Study the complete expression as one field-specific unit.	tissue that supports, binds, stores, or transports materials in the body	Blood is a connective tissue that transports gases and nutrients.
222	muscle tissue	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: muscle + tissue. Study the complete expression as one field-specific unit.	tissue specialized to contract and produce movement	Cardiac muscle tissue pumps blood through the heart.
223	nervous tissue	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: nervous + tissue. Study the complete expression as one field-specific unit.	tissue specialized to receive, process, and transmit electrical and chemical signals	Nervous tissue carries information from the eye to the brain.
224	extracellular matrix	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: extracellular + matrix. Study the complete expression as one field-specific unit.	material outside cells that provides structural and biochemical support to tissues	Collagen is a major component of the extracellular matrix in tendons.
225	stem-cell differentiation	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: stem + cell + differentiation. Study the complete expression as one field-specific unit.	the process by which an unspecialized stem cell develops a particular structure and function	Stem-cell differentiation can produce a mature blood cell.
226	apoptosis	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Base-form focus: apoptosis is the dictionary headword; compare its inflected or derived forms in context.	a controlled process of programmed cell death	Apoptosis removes damaged cells without releasing their contents into nearby tissue.
227	cell cycle checkpoint	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: cell + cycle + checkpoint. Study the complete expression as one field-specific unit.	a control point that determines whether a cell may continue toward division	A cell cycle checkpoint can halt division when DNA is damaged.
228	tumor suppressor gene	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: tumor + suppressor + gene. Study the complete expression as one field-specific unit.	a gene whose normal product restrains cell division or promotes repair and cell death	Loss of a tumor suppressor gene may allow abnormal cells to multiply.
229	oncogene	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Base-form focus: oncogene is the dictionary headword; compare its inflected or derived forms in context.	a gene that can drive excessive cell growth when activated or altered	A mutation converted the growth-regulating gene into an oncogene.
230	metastasis	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Base-form focus: metastasis is the dictionary headword; compare its inflected or derived forms in context.	the spread of cancer cells from an original tumor to another part of the body	Imaging showed metastasis from the lung to the bone.
231	angiogenesis	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Base-form focus: angiogenesis is the dictionary headword; compare its inflected or derived forms in context.	the formation of new blood vessels	The tumor promoted angiogenesis to obtain oxygen and nutrients.
232	carcinogen	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Base-form focus: carcinogen is the dictionary headword; compare its inflected or derived forms in context.	a substance or exposure capable of increasing cancer risk	Ultraviolet radiation is a carcinogen that can damage DNA in skin cells.
233	mutation rate	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: mutation + rate. Study the complete expression as one field-specific unit.	the frequency at which new genetic changes arise in a cell or population	Radiation exposure increased the mutation rate in the laboratory cells.
234	DNA repair	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: DNA + repair. Study the complete expression as one field-specific unit.	cellular processes that detect and correct damage in genetic material	DNA repair enzymes replaced the incorrectly paired base.
235	transcription factor	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: transcription + factor. Study the complete expression as one field-specific unit.	a protein that binds DNA and helps control whether a gene is transcribed	The transcription factor activates genes needed during heat stress.
236	gene silencing	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: gene + silencing. Study the complete expression as one field-specific unit.	the reduction or prevention of gene expression	A small RNA molecule caused gene silencing by blocking the message.
237	epigenetics	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Base-form focus: epigenetics is the dictionary headword; compare its inflected or derived forms in context.	the study of heritable or lasting changes in gene activity that do not alter the DNA sequence	Epigenetics examines how chemical tags influence gene expression.
238	DNA methylation	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: DNA + methylation. Study the complete expression as one field-specific unit.	addition of methyl groups to DNA, often affecting gene activity	Increased DNA methylation near the promoter reduced transcription.
239	histone modification	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: histone + modification. Study the complete expression as one field-specific unit.	a chemical change to DNA-packaging proteins that can alter access to genes	Histone modification opened the chromosome region for transcription.
240	recombinant DNA	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: recombinant + DNA. Study the complete expression as one field-specific unit.	DNA constructed by joining genetic material from different sources	The plasmid contained recombinant DNA with a human insulin gene.
241	plasmid	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Base-form focus: plasmid is the dictionary headword; compare its inflected or derived forms in context.	a small circular DNA molecule that replicates separately from a bacterial chromosome	Scientists inserted the gene into a plasmid.
242	restriction enzyme	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: restriction + enzyme. Study the complete expression as one field-specific unit.	a protein that cuts DNA at a particular sequence	The restriction enzyme opened the plasmid at one specific site.
243	DNA ligase	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: DNA + ligase. Study the complete expression as one field-specific unit.	an enzyme that joins breaks in the DNA backbone	DNA ligase sealed the inserted gene into the plasmid.
244	gel electrophoresis	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: gel + electrophoresis. Study the complete expression as one field-specific unit.	a technique that separates DNA, RNA, or proteins by movement through a gel under an electric field	Gel electrophoresis separated the DNA fragments by size.
245	polymerase chain reaction	noun Study Field: Grade 10 biology, biochemistry, and health-science term Word study: Term structure: polymerase + chain + reaction. Study the complete expression as one field-specific unit.	a laboratory method that rapidly makes many copies of a selected DNA region	Polymerase chain reaction amplified the trace DNA from the sample.

Vocabulary reading and practice

Engineering a Living System

Reading practice for pages 7–9. Five relevant words are highlighted.

English reading

In a controlled laboratory model, a plasmid carries recombinant DNA into bacteria. The lesson distinguishes this technique from functions within a complex organism. A tumor suppressor gene helps regulate cell division, thermoregulation maintains a stable temperature, and osmoregulation balances water and dissolved substances.

Reading comprehension

1. What carries recombinant DNA into bacteria?

A plasmid carries the recombinant DNA.

2. What does a tumor suppressor gene regulate?

It helps regulate cell division.

3. What balance does osmoregulation maintain?

It balances water and dissolved substances.

Vocabulary quiz

Complete 5 review questions for this page.

1. The plasmid contained ___ with a human insulin gene.

Answer: recombinant DNA

2. A lizard uses behavioral ___ by moving between sun and shade.

Answer: thermoregulation

3. Loss of a ___ may allow abnormal cells to multiply.

Answer: tumor suppressor gene

4. Scientists inserted the gene into a ___.

Answer: plasmid

5. Freshwater fish perform ___ by removing excess water.

Answer: osmoregulation

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Sources and curriculum references

These references guide selection and calibration. Definitions, sample sentences, readings, questions, and teaching notes are independently written and reviewed.

10th Grade Vocabulary Words

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