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22 Cards in this Set
- Front
- Back
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Flowering plants are divided into two groups according to whether their seeds have ____ or _____ _______.
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one or two cotyledons
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A flowering plant with one cotyledon is called a _____.
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monocot
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A flowering plant with two cotyledons is called a ____.
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dicot
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Dicots generally have ____ leaves with ______ veins.
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broad leaves
branching veins |
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Almost ______ of all the species of flowering plants are dicots.
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3/4
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Monocots generally have _____,____ leaves with _____ veins.
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long, slender leaves
parallel veins |
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Characteristics of the dicot:
1 2 |
1. flower petals in groups of 4 or 5
2.large taproot with secondary rootlets |
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A ____ generally grows from a bulb.
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lily
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A______ is a structure made of layers of thick fleshy leaves surrounding a very short stem.
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bulb
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Bulbs acts as _____ for food and produce a new plant in the next growing season.
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storehouse
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The amaryllis plant grows from 1______ 2_____ or 3____.
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1.corms - thick underground stems
2.rhizomes - stems underground 3. bulbs |
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________ are horizontal stems lying along just under the ground.
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rhizomes
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Characteristics of grasses:
1. __% of the weight is in the root. 2. grass plants have a _____, a creeping stem that grows above the ground. |
1. 90% of the weight is in the root, and
2. grass plant have a stolon |
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The stem of a grass plant is called a ______.
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culm
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The joint on the grass stem is called the ____.
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node
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Each grass leaf is made up of a ____ and a _____.
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sheath and blade
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Grasses have _____ blades and _____.
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narrow blades
spikelets |
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Flower cluster on a grass grow in ____, ____ or __ ___.
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spikes
racemes compound racemes |
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____ could be considered the most important plants on earth.
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grasses
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Why are grasses important to mankind and animals?
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Grasses provide a lot of the food for humans and animals.
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The seed of the grass is called a _____.
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grain
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Important grains are:
1______2______3_____ and 4____. |
1.wheat
2.oats 3.rice 4.corn |
