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Study Guide Answers

1.     A plant is a [unicellular/multicellular] organism.
     multicellular
2.     The waxy, waterproof coating of a plant is its ___________________________.
     cuticle
3.     The cell walls of plants are made of ______________________________, which provides _________________________ and _______________________________.
     cellulose/ shape/ support
4.     On Earth, plant life probably began where?
     in the planet's ancient oceans
5.     Because land plants did not live in watery environments, what did they develop in order to survive?
     roots to extract moisture from soil
6.     What does a plant make during the process of photosynthesis?
     It makes food for itself.
7.     What are "chloroplasts"?
     Chloroplasts are small green bodies in plant cells that contain chlorophyll, a green pigment that absorbs light energy from the sun.
8.     What does a plant's vascular tissue do?
     Vascular tissue transports nutrients.
9.     What are the two main types of vascular tissue in plants?
     xylem/ phloem
10.     What kind of vascular tissue carries carbohydrates?
     phloem
11.     What kind of vascular tissue carries water and ions?
     xylem
12.     What is it that allows land plants to grow tall?
     the vascular system that allows for the transport of nutrients
13.     What innovation is unique to vascular plants?
     the development of seeds
14.     Of what does a seed consist?
     an embryo and some stored food
15.     The life cycle of most plants alternates between _________________ stages. What are they?
     two/ the sporophyte generation/ the gametophyte generation
16.     The alternation of generations allows a plant to do what?
     reproduce and multiply
17.     What generation is dominant in most plants?
     the sporophyte generation
18.     Spores develop into the __________________________________ generation.
     gametophyte
19.     What plants resemble mosses, and grow close to the ground?
     lycophytes (club mosses)
20.     ______________________________ are called "horsetails."
     Sphenophytes
21.     ________________________________ are ferns.
     Pterophytes
22.     The leaves of ferns are __________________________, divided into leaflets called "_________________________________."
     fronds/ pinnae
23.     What vascular plants were the first to evolve leaves with branching veins?
     ferns
24.     Pine trees and fir trees are _______________________________.
     gymnosperms
25.     Cycads bear seeds in _________________________.
     cones
26.     What tree is sacred in parts of Asia?
     Ginkgo biloba
27.     Where are most gnetophytes found?
     in deserts or on mountains
28.     Plants with needle-like or scale-like leaves are ____________________________.
     coniferophytes
29.     Most ____________________________ are evergreens.
     conifers
30.     Trees that lose their leaves are _______________________________.
     deciduous
31.     Trees with no leaves cannot _________________________________ to get energy.
     photosynthesize
32.     Any tree that is not a conifer is a(n) _________________________________________.
     angiosperm
33.     Any flower-producing plant is a(n) ___________________________________.
     angiosperm
34.     A pollen-producing anther is part of the flower's ______________________________.
     stamen
35.     The female flower's reproductive organ is its ______________________________.
     ovary
36.     Pollen travels through the pollen tube to the ________________________.
     ovary
37.     When you eat a fruit, you're eating a flower's fertilized and ripened __________________________.
     ovary
38.     Plants take in carbon dioxide and release _______________________________.
     oxygen
39.     In an ecosystem, what is the foundation of the food chain?
     plants
40.     Carnivores eat _________________________, while herbivores eat ________________________.
     meat/ plants
© Educational Video Network, Inc. 2005 - www.evndirect.com
Your leading source for curriculum-based educational videos and DVDs.