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31 Cards in this Set
- Front
- Back
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Plants are our main source of oxygen due to the process of photosynthesis. True or False?
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False!
the majority of oxygen comes from phytoplankton that live in the oceans, lakes, and streams of the planet. |
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What are the characteristics of perennial plants?
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If a plant has woody parts, such as trunks and/or woody stems, it typically grows year after year, thereby being a perennial plant.
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How do you know if a plant is an annual?
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Plants that do not have woody parts, typically live for only one year.
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A few types of herbaceous plants are biennial. What does this mean?
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These plants live for two years. Typically, they store food during the first season of growth and then reproduce in the second season.
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WHY are peas, corn, and tomatoes fruits instead of vegetables???
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If a food item is a reproductive plant organ, it is a fruit. If it is a vegetative organ, it is a vegetable. We know they are reproductive organs because they encase seeds!!!
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What are the four basic kinds of tissues?
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meristematic tissue,
ground tissue, dermal tissue, and vascular tissue. |
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As a plant grows, it produces new cells via mitosis. Where does this take place?
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in the meristematic tissues. The new cells produced can mature into any kind of cell that the plant needs.
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Ground tissue is the most common tissue in a plant. True or false?
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True. Some of them provide storage for starches and oils that the plant needs. Others are involved in metabolism.
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Dermal tissue is generally made out of ___________
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a single layer of cells.
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What is dermal tissue responsible for?
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It protects the plant by providing a shield between the environment and the plant's internal tissues.The dermal tissue in the roots of a plant is also responsible for absorbing water and minerals that the plant needs.
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True or false? Vascular tissue is found in all plants.
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False. However it IS found in most plants! In those plants, it is used to carry water and dissolved material throughout the plant.
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Which cells die after maturation?
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Xylem cells
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A gardener plants a group of flowers that grow beautifully over the course of a year. In order to have the same flowers each year, however, he must replant. Are these most likely woody plants or herbaceous plants?
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herbaceous (annuals) plants,
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A carrot is the root of a carrot plant. What kind of organ is it?
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It is a vegetative organ.
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A section of plant no longer has any mitosis going on. What kind of tissue should be absent in that section?
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Meristematic tissue will not be present. .
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What are the four major parts of a leaf?
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blade,
apex, petiole, stipules |
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What are the two basic kinds of leaves?
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simple leaves
and compound leaves |
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What is the most important job that the leaf performs?
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photosynthesis, so that the plant can obtain the food it needs
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What are the three main types of leaf mosaics?
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alternate,
opposite, whorled |
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Which leaf mosaic is the most common?
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alternate
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Which leaf mosaic is frequently found in the tropics?
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whorled
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What are three characteristics that botanists can use to classify the plant from which a leaf comes?
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shape,
margin, and venation |
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The venation of a leaf can tell us something about the taxonomy of the plant from which it came. True or False?
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True!
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Since monocots have parallel venation and dicots have netted venation, the kind of venation you see on a leaf can tell you what?
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the kind of seed the plant produces
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If the epidermis of a leaf does not secrete a cuticle, it often grows what?
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Hairs. These hairs give the leaf a velvety appearance.
(think: African Violet) |
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What is the purpose of hairs on a plant's leaves?
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defense mechanism.
(think: stinging nettles!) |
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Why do the guard cells close the stoma in the presence of low light?
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When light levels are low, however, the leaf cannot afford to have the stomata open, because water evaporates from the leaf through the stomata. (transpiration)
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The parenchyma tissue is composed of two layers. What are they?
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palisade mesophyll and the spongy mesophyll
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What is the function of vascular tissue? |
it is used to carry water and dissolved material
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Which cells continue to live after they mature.
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Phloem cells
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What are annual plants called? |
herbaceous |
