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Questions from Science study guide

what is the importance of photosynthesis?

It provides food for plants and exchanges carbon-dioxide for oxygen

where does photosynthesis take place in a plant?


What is the equation for photosynthesis

CO2 + H2O ------->C6H12O6+O2
Carbon Dioxide + Water----------------->Sugar+ Oxygen
light energy

central vacuole

sac-like structure that stores water, waste and food

cell wall

strong layer around the cell membrane in plants, algae, and some bacteria


green jelly bean structures in which photosynthesis occurs


a green pigment found in chloroplasts which is located in the leaves of plants.


chemical instructions that direct the cells activities

cotyledon (seed)

stores, a seed leaf that stores food


An organism in the earliest stage of development from a zygote

seed coat

protective outer layer of seeds of flowering plants


the vascular tissue through which food moves in some plants


the vascular tissue through which water and nutrients move in some plants


tiny structures that contain the cells that will later become sperm cells


the plant structure that contains a young plant inside a protective covering


occurs when the embryo begins to grow again and pushes out of the seed

root cap

protects the root from injury from rocks as the root grows through the soil


vascular tissue that produces xylem and phloem cells as a plant grows


a structure that holds a plant up and supports its leaves


Small openings on a leaf through which oxygen and carbon dioxide can move.


the waxy, waterproof layer that covers the leaves and stems of most plants


group of similar cells that perform a particular function


plant that has tubes and transports material


containing no plant tissue through which water and food move


evaporation of water from a plant's leaves

seed dispersal

animals, water and wind


takes in air and light - makes food for plant


Absorbs water and minerals from the ground. Anchors plant in ground.

outer bark

old phloem that protects the tree

inner bark

active phloem that moves food around tree


(see number 18)


area in plants that surrounds heartwood and is active in fluid transport


Helps support the tree, older xylem near the center of a woody stem that no longer conducts water

annual rings

inner bands of light wood and outer rings of dark wood on a tree; tell the age of trees and how much water it has received

function of stomata

Exchange gases (absorb co2, release 02) and lose water through transpiration

characteristics of angiosperms

Produce flowers, and produce seeds that are enclosed by a fruit

examples of angiosperms

Oak, Maple, Grass, Daisey, Apple


the female ovule-bearing part of a flower composed of ovary and style and stigma


Leaflike parts that cover and protect the flower bud


brightly colored structure just inside the sepals; attracts insects and other pollinators to a flower


The pollen-producing male reproductive organ of a flower, consisting of an anther and filament.

life cycle of angiosperm

First, tree produces flowers; Second, cells in anther produce pollen grains and inside ovary an egg cell is produced in each ovule; Third, pollen grains are trapped on stigma; Fourth, pollen grain produces a pollen tube that grows into ovule and a sperm cell moved through pollen tube and fertilizes egg cell; Fifth, ovule develops into a seed and fertilized egg becomes the seed's embryo and other parts of ovule develop into seed coat and the seed's stored food; Sixth, ovary and other structures develop into a fruit that encloses the seeds and fruit helps in seed dispersal; Seventh, a seed grows into a new plant

benefits of mulch

(see page in binder)

annual plant

A flowering plant that has a life cycle lasting only a single year or growing season followed by death.


Flowering plant that lives for more than 2 years


pigment - gives plants a green color

red panda scientific name

Ailurus fulgens

Tennessee state tree scientific name

(Tulip Tree) Liriodendron tulipifera

what does Bernoulli's principal state

Bernoulli's Principle says that increased air velocity produces decreased pressure.

how does Bernoulli's principal relate to birds flight

the curve shape on the top of a wing makes for higher velocity which creates low pressure (see Bernoulli's Principal)

characteristics of teeth of mammals

incisors-cutting(vegetables), Canines-Stabbing(meats), Molars- Grinding (hard foods)

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