science test
Terms
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- What influences the rate of plant growth in different types of plants?
- The environment and DNA, depending on the plant.
- Which part of the leaf protects the plant from the outside?
- epidermis.
- How would a leaf best be classified?
- An organ.
- Explain why plants have more sugar in them during daytime than at nighttime.
- The sun is out in the daytime, so the plant can do photosynthesis.
- Xylem
- Tissue which carries water and minerals from the roots through the stems and leaves
- Pollen
- A grainy, often yellow powder.
- When two plants produce an offspring by pollination, which of the following describes the most likely appearence of the offspring plant?
- It will have characteristics from each of the parent plant.
- Most water enters a plant through which structures?
- The root hairs.
- which type of plant has the least amount of xylem? (tulip, shrub, palm tree, or pine tree.)
- it is a tulip.
- Spore
- A single plant cell that can develop into a new plant.
- which type of seed has two areas of stored food and produces a plant with branched out veins on the leaf?
- Dicot
- Photosynthesis
- The process that plants do to make sugar and oxygen
- How are spores different from seeds?
- Spores are not made from fertilization.
- Identify 2 types of asexual reproduction in plants. Explain how each method works.
- Raspberries can produce a new generation using their stems. Potatoes use their roots. Geraniums can be grown from any piece of a parent plant.
- leaves have many tiny openings on the bottom. What is the pupose of these?
- They allow air to pass in and out of the plant.
- Where is pollen made in a flower?
- In the stamen.
- Which of the following is true of asexual reproduction?
- The offspring has the same gene as the parent.
- Phloem
- Tissue which carries sugar away from the leaves
- Growth Hormone
- A kind of chemical that affects the plants growth
- Embryo
- The plant in its earliest stage of development, it is contained within the seed.
- Tropism
- Are ways that plants change their direction of growth in response to the environment.
- Show the chemical formula for photosynthesis.
- co2+water+sunlight=o2, and sugar
- Which of the following functions do xylem tissues perform?
- Xylem tissue carries a water mixture and minerals from roots to the rest of the plant.
- Pollination
- Involves the stamen and the pistol of the same plant or of two plants