life science help?????????
Posted April 16, 2010 – 4:45 pm in: Green Cleaning Tips1: What part of a plant is NOT involved in food making?
Vascular tissues
Roots
Leaves
Node
2: How is a stem involved in food making?
A stem is not involved in food making
Food is stored in stems
Stems carry food to the leaves
Photosynthesis occurs in stems
3: How are roots involved in food making?
Roots are not involved in food making
The plant can use the roots as food in times of stress
The roots absorb water and minerals that let the plant grow
The roots hold the plant upright to be able to make food
4: What is the function of a root cap?
Water enters the root cap and moves into the plant
The root cap is loosely packed cells at the tip that are scraped off as the root grows down
The root cap seals off the root during the winter months
The root cap is the top of the root that transitions into the rest of the plant
5: What is the function of a root hair?
The root hair absorbs water and materials from the soil
The root hair grows deep into soil to anchor the plant
The root hair is loosely packed cell at the tip that are scraped off as the root grows down
The root hair seals off the root during the winter months
6: Which of the following is not a function of a stem?
Allowing materials to pass from roots to leaves and back
Storing and making food
Supporting the plant
Protecting the plant
7: Annual rings are formed in each growing season of a tree, as a new layer of woody tissue is formed under the bark. The cambium forms new tissue on the tree’s inside. Then, the cambium is pushed out, and the xylem and bark are also pushed outward. New xylem and bark cells are formed, and the tree trunk becomes thicker. True/False and why?
True
False, the new woody tissue is called xylem, not cambium
False, phloem and bark are pushed out, not xylem
False, the new layer is formed around the old layer, not underneath
8: All life is dependent upon green plants. True/False and why?
True, green plants are a part of the food chain as a food source for animals and people, and they supply oxygen and clean our air.
True, green plants help supply food and oxygen and they also decompose the majority of the earth’s waste
False, not all forms of life eat plants, and therefore they do not need them
False, plants are essential for human life, but most creatures could survive without them
9: Would you expect desert plants with leaves to have greater or fewer numbers of stomata than plants growing in moist regions? Why?
Fewer, because they do not get enough water to grow more
Fewer, because water is released through them and desert plants do not have much excess water
Greater, because stomata help a plant absorb water through guttation
Greater, because desert plants need to produce more food than other plants
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Not only is this in the wrong section, but Y!A is not here to do people’s homework for them.
How will you learn if you are just given the answers? You could have looked it up in a book or via Google and done it yourself by now.