BIO 1023 FINAL BRCC STUDY QUESTIONS AND CORRECT ANSWERS
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Course
BIO 1023
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BIO 1023
Ammonia provides the form of _____ that plants can take up and use. The Haber-Bosch process is an industrial process used to produce _____ fertilizer. Which of these must be converted from an atmospheric gas into a form that plants can take up from soil? Guano was harvested in the mid-19th century ...
BIO 1023 FINAL BRCC STUDY QUESTIONS AND CORRECT ANS WERS Ammonia provides the form of _____ that plants can take up and use. The Haber -Bosch process is an industrial process used to produce _____ fertilizer. Which of these must be converted from an atmospheric gas into a form that plants can take up from soil? Guano was harvested in the mid -19th century as a way to provide _____ to crops. ✅nitrogen Which two nutrients most frequently limit plant growth? ✅nitrogen and phosphorus The bacterium Bacillus thuringiensis (Bt) protects crops from ___ ✅some insect larvae If an existing crop variety lacks a particular trait that is desirable, what is the most efficient way to introduce the desired trait? ✅genetic modification of the plant Why are scientists interested in introducing extra copies of nonphotochemical quenching (NPQ) genes into food crops? ✅to increase the efficiency of photosynthesis What method is considered the fastest and surest way to improve a crop? ✅crossing two varieties of the same plant Plants are eukaryotic cells containing organelles. Which organelle is only found in plant cells? ✅cell walls The xylem and phloem act much like the human circulatory system. Which statement regarding the xylem and phloem is FALSE? A.) The xylem and phloem work together to transport essential nutrients to plant cells. B.) The phloem's only function is to transport sugars from the roots to the leaves. C.)Water is moved up the xylem by transpiration. D.)The xylem transports water from the root system to the shoot system. E.) Xylem and phloem are present in both the root and shoot systems. ✅B is false In addition to water and sugar, plants require certain nutrients to grow. Certain bacteria present in fertile soil help plants obtain ___ ✅nitrogen When counting the rings of a tree, you are actually counting rings of ___ ✅xylem Woody plants such as giant redwoods contain greater amounts of substances that make them tougher and more rigid than other plants, and other woody plants, such as cellulose and __ ✅lignin The stomata open and close to allow which molecule(s) to evaporate during transpiration? ✅water Certain "carnivorous" plants obtain their nitrogen from __ ✅insects Each fall, most deciduous trees produce vibrant colored leaves. Which statement best explains why a leaf may turn yellow in the fall? ✅the green pigment in the leaves decreases in the fall Which statement best explains why leaves appear green in the spring and summer? ✅high levels of chlorophyll mask the other pigments produced by the leaves. Which strategy is used by plants in hot, dry climates to conserve water? ✅thick waxy coating on their leaves An oak tree that turns vibrant red in the fall is most likely a result of ____ ✅Increased sugar production trapped in the leaves and high anthocyanin levels Trees shed their leaves during the fall in order to __ ✅Conserve water during the dry winter months In flowering plants, the reproductive organs are housed in the flower. Which of these is NOT a reproductive organ of a flowering plant? ✅The Tap Root is not a reproductive organ of a flowering plant. Most plants are hermaphrodites, which means they __ ✅contain both male and female reproductive organs Which method was developed by plants to prevent self -pollination? ✅Male and female reproductive organs located at different heights Chemical barriers to fertilization of eggs In plants, fertilization takes place in the __ ✅ovule Angiosperms make up close to 90% of the plants in the world. Which statement regarding angiosperms is false? ✅A pine cone is an example of an angiosperm.
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