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Tenth Grade (Grade 10) Botany Questions

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Grade 10 Botany
The male reproductive structures of seed plants are
  1. ovules.
  2. sperm.
  3. sporophytes.
  4. pollen grains.
Grade 10 Botany
During what process do plants convert carbon dioxide and water into organic sugars?
  1. oxidation
  2. photosynthesis
  3. metabolism
  4. combustion
Grade 10 Botany
What two structures form the vascular bundle in a plant?
  1. xylem and stomata
  2. xylem and phloem
  3. phloem and stomata
  4. stomata and vacuole
Grade 10 Botany
In the nitrogen cycle, what do bacteria that live on the roots of plants do?
  1. change nitrogen gas into plant proteins
  2. break down nitrogen compounds into nitrogen gas
  3. change nitrogen gas into ammonia
  4. do not affect the pathways of nitrogen
Grade 10 Botany
Seed-bearing plants are divided into the two groups of
  1. vascular and nonvascular.
  2. mosses and flowers.
  3. angiosperms and gymnosperms.
  4. conifers and gymnosperms.
Grade 10 Botany
Plants that have their entire life cycle of growth and reproduction in the same year are
  1. annuals.
  2. biennials.
  3. perennials.
  4. quadrennials.
Grade 10 Botany
What mechanism does the plant root use to bring water into the plant?
  1. osmosis
  2. active transport
  3. binary fission
  4. accumulation
Grade 10 Botany
Which plant has a taproot system?
  1. carrot
  2. grass
  3. peas
  4. lettuce
Grade 10 Botany
Plants that produce seeds formed by cones or conelike structures are classified as
  1. gymnosperms.
  2. angiosperms.
  3. bryophytes.
  4. nonvascular.
Grade 10 Botany
Which statement describes the relationship between plant hormones and phototropism?
  1. Gibberellins cause the leaves to curl up in the presence of light.
  2. Auxins cause the stems to bend towards the light source.
  3. Cytokinins cause light to be absorbed at a faster rate for photosynthesis.
  4. Ethylenes cause the plants to bend away from the light source.
Grade 10 Botany
Trees that lose their leaves in the winter are described as
  1. deciduous.
  2. tropical.
  3. coniferous.
  4. evergreen.
Grade 10 Botany
The shoot system of a plant includes the
  1. leaves.
  2. stems.
  3. flowers.
  4. all of the above
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