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Plants 5th Grade Science
Chapter 4 Plants 5th Grade Science
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Plants Plants make their own _____. This process is called ___________ and takes place in their __________. Leaves are _______ made of _____ and _________. Layers of similar _______ make up the _______ in the leaf. Plant tissues are very similar to animal tissues. food photosynthesis leaves cells organs tissues cells tissues
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Photosynthesis _______________ is the process that plants use to make sugar for food. Photosynthesis happens in the ___________ which are located in plant cells. In photosynthesis ____________ and ________ are used to make _________ and ____________. ___________ supplies the energy needed for photosynthesis. Photosynthesis chloroplasts Carbon dioxide water sugar oxygen Sunlight
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Chemical Equation for Photosynthesis
Carbon dioxide + water → oxygen + sugar The plant gets water from the _______ and carbon dioxide through the ________ which are small pores on the underside of leaves. Once the plant makes the sugar it is transported to all of the ______ in the plants including the roots. soil stomata cells
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Sugar Plants use some of the sugar immediately as _______ to continue the process of ____________ during the day. Some sugar is _______ to use at night. Thousands of sugars combine in plant cells to form ________. ________ is a chemical that makes up the strong _______ of plants. energy photosynthesis stored cellulose Cellulose Cell walls
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Chlorophyll Inside of the chloroplasts are structures that look like plates called __________. Chlorophyll contains a ________ that gives the plant its color. The function of the chlorophyll is to absorb _________from the sun in the chloroplast. __________ gives the cell energy to make sugar from ___________ and ________. chlorophyll pigment energy Sunlight Carbon dioxide water
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Stems Stems provide ________ for the plant and hold the leaves and flowers. __________ plants have stems have a transport system just like the _____________ in the human body. The tissues in plant stems that transport materials are __________ and ________. support Vascular Circulatory system xylem phloem
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Xylem and Phloem ________ - are tissues that carry materials from the roots to the leaves. The _______ soak up the water from the soil. _______ - are tissues in the shape of tubes that carry sugar away from the leaves. -The sugar from plants is dissolved in _______. -In trees, phloem is made below the ____. Dead phloem makes the bark. Xylem roots Phloem water bark
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Roots ___________ - anchor the plant into the ground and hold it in place as it grows. Root systems: ___________ - a large root that grows straight down. Taproots may store _______ for the plant. Small roots may grow sideways out of the main taproot. ________________ - many roots grow out in all directions. Roots Taproot food Fibrous root systems
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Root Tip Roots grow longer because of special _________ near the root tip. At the __________, cells quickly divide and form new cells. The new ______ push the root further into the ground. Roots also _______ water for the plant. tissues Root Tip cells absorb
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Functions of Roots Roots _________ a plant and may _______ food.
Roots absorb ______ and ________ or ___________ from the soil. The materials that are taken in from the soil are used in the processes of ___________, ________, ____________, and ____________ anchor store water minerals nutrients photosynthesis growth maintenance reproduction
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Parts of a Plant
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Parts of a Flower _______ - male part of a flower
__________ - a grainy yellow powder is made in the stamen. A single flower may have many_________. ________ - female part of a flower. _______ often has a wide bottom an a narrow neck A single flower may have more than one ____. stamen pollen stamens pistil pistil pistil
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Flowers _______________ - do not have both a stamen and a pistil.
_______________ - flowers with both male and female parts. _______________ - one flower unit is made up of hundreds of tiny flowers ________ - the moving of pollen from the stamen to the pistil. ____________ - can involve the stamen and pistil of the same plant or two different plants Imperfect Flowers Perfect Flowers Composite Flowers Pollination Pollination
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Pollination Pollination takes place in different ways.
_______ or ______ can move pollen. ________, _____, or ________ moving from plant to plant can transport pollen. Some plant species are only pollinated in one way while others can be pollinated in different ways. wind water insects bats birds
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Pollination of a Pea Plant
1. Pollen sticks to the _________ at the end of the ________. 2. Pollen tubes grow down the _______ to the __________. 3. _________ from the pollen move down the tubes. 4. ___________ combines the DNA of both plants pollen pistil pistil Egg cell Sperm Fertilization
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Pollination / Parts of a flower
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Seeds A seed is made of three main parts: ____________
The __________ is a covering that protects the new plant and stores food. The __________ is the new plant contained in the seed coat. The __________ is a stash of food stored in the seed coat Seed coat embryo endosperm Seed coat embryo endosperm
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Parts of a seed
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Monocots / Dicots An _________ has structures called _________ or __________. ___________ - seeds that have one cotyledon – example: corn __________ - seeds that have more than one cotyledon – example: beans embryo Seed leaves cotyledons Monocots Dicots
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Compare and Contrast
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Spreading Seeds Some plants ______ their seeds on the ground and the seeds begin to grow. _________ are helpful in scattering seeds. The seeds of berries pass through the _______________ of animals and are eliminated as waste. Outside conditions such as _________ and __________ must be right before the plant can begin to grow. drop animals Digestive system temperature moisture
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Spores __________ and ________ are plants that do not produce flowers.
The life cycle of these plant have _______: ____________ ____________- fern and mosses use _______ to reproduce. A plant ________ is a single plant cell that can develop into a new plant. mosses ferns Two parts fertilization reproduction spores spore
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Differences between spores and seeds
Spores do not have a multicellular _________ Spores are not made by __________ Both spores and seeds have____________ Reproducing without sperm cells and egg cells: _________ reproduction – there is only one parent The offspring are identical to the parent ___________ and ____________ embryo fertilization Stored food Asexual Runners Budding
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Runners and Budding ________- growing new plants from stems or roots of the plant. Example: strawberries __________- buds form on the plant and drop off to grow as separate plants. Runners Budding
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Life Cycle of a Moss plant
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How Do Plants Grow? A plants growth depends on ______ and its ___________ conditions ____________ - when a seed sprouts _______ will grow out of a seed __________ ________ will grow out of a seed _________ _________ - genetic information that instructs the plant on how to grow and in what conditions DNA Environmental Germination roots downward stems upward DNA
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Tropisms ___________ - ways in which the plant changes direction to get what it needs Tropisms often occur when the ___________ conditions change. _____will grow faster on one side of the plant causing the plant to bend in a certain direction. _____________ - kind of chemical that affects plant growth. Tropisms environmental cells Growth hormone
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Growth Hormone in Plants
Growth hormones in plants cause more cells to grow in the plant. The hormone may make the plant grow larger Plants make their own growth hormone.
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