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30 Cards in this Set
- Front
- Back
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What is copied during replication?
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DNA
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What does carbon dioxide enter plants through?
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stomata
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What causes a form of alcoholic fermentation?
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yeast
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Plants make their own food using energy that comes from this
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sun
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The energy from glucose is release during what process?
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respiration
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What are the products of photosynthesis?
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oxygen and glucose (sugar) |
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Which term refers to the production of energy by a cell without using oxygen?
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fermentation
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What happens during photosynthesis?
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cells use energy in sunlight to make food
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What product of photosynthesis do most living things need to survive?
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oxygen
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respiration and photosynthesis keep the levels of oxygen and carbon dioxide
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fairly constant
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How is photosynthesis helpful to heterotrophs?
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it creates food they can eat
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How are photosynthesis and respiration related?
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they have opposite equations
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What happens during respiration?
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glucose is broken down, releasing energy
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What two products combine to release energy during respiration?
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glucose and oxygen
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What causes lactic-acid fermentation?
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too little oxygen in muscle cells
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What is DNA shaped like?
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a spiral staircase
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What happens to cells when someone has cancer?
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grow and divide uncontrollably
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When do scientists think cancer begins?
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a mutation in DNA
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What is a cancer tumor?
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a mass of abnormal cells
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What is chemotherapy?
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the use of drugs to kill cancer cells
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What is the main cause of lung cancer?
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smoking
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What captures energy from sunlight during photosynthesis?
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chlorophyll and other pigments
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What is an organism that can make its own food?
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autotroph
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What are the three most common treatments for cancer?
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surgery, chemotherapy, and radiation
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Cancer can spread when cells break off a tumor and enter the ...
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bloodstream
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What is a change in the DNA in a chromosome called?
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mutation
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A cells' nucleus divides to form two identical nuclei during the process of...
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mitosis
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What are the three products of respiration?
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energy, carbon dioxide and water
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What is the process in which yeasts break down sugars and produce carbon dioxide and alcohol?
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alcoholic fermentation
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What are the stages of mitosis in order?
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interphase, prophase, metaphase, anaphase, telophase
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