Science - Chapter #2
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- A kind of tissue called ______ makes up tubes that carry food through a plant?
- phloem
- What food substance do plants make by the process of photsynthesis?
- sugar
- A kind of tissue called ______ makes up tubes that carry water and minerals through a plant?
- xylem
- What part of a seed develops into a young plant?
- embryo
- A green structure found in many plant cells and in which food is made is a ______.
- chloroplast
- Name the male reproductive part of a flower?
- stamen
- Through what threadlike structures do materials enter the roots of a plant?
- root hair
- Small openings usually found on the bottom surfaces of leaves are__________?
- stomates
- Name one condition necessary for seed germination?
- temperature
- A branch is grafted onto a tree. What tissues of the branch and the tree must grow together for the branch to get water & food?
- phloem & xylem
- What is the respiration formula?
- food+oxygen+energy+carbon dioxide+water
- What is the Photsynthesis formula?
- water+carbon dioxide+energy+sugar+oxygen
- Green pigment that absorbs energy from sunlight?
- Chlorophyll
- Part of a seed that develops into a young plant?
- germination
- Male reproductive cell?
- sperm
- Process in which plants make food?
- photosynthesis
- Tough covering that protects a seed?
- seed coat
- Process in which oxygen combines with food, releasing energy?
- respiration
- Female reporductive part that contains the ovary?
- pistil
- Joining of a sperm and an egg cell?
- fertiliztion
- Process by which pollen grains move from a stamen to a pistil?
- pollination
- part of the pistil that contains ovules?
- ovary
- What are two ways a flowering plant can reproduce without seeds?
- grafting & cuttings
- What are the four steps of germination?
-
1.water enters the seed-causing it to swell-and seed splits opens
2.Root continues to grow & a stem pushes up through soil. The seed coat falls off
3.Young leaves grow & open.the leaves begin to make food
4.Roots & leaves continue to develop as the stored food is used. Seed has become a seedling. - Name 2 things a seedling need for growth?
- light & water
- What are two ways in which flowers are pollinated?
- wind & insects
- What part of a flower becomes a seed?
- ovale
- What part of a flower becomes a fruit?
- ovary gets bigger & develops into a fruit seed
- What must happen to the guard cells of a stoma before the stoma opens?
- it has to swell with the water