Test 4
Yeasts reproduce asexually by:
Budding
The cell walls of fungi are composed of:
Cellulose
Which is characteristic shared between green algae and plants
Chlorophylls a and b in plastids
The outermost cell layer of herbaceous stem is the:
Epidermis (like humans)
In a fungus,a complex multicellular reproductive structure is called a
Fruiting body
What is a fungal chemical that shows promise as an anticancer agent because of its ability to inhibit the formation of new blood vessels ?
Fumigallin
What is the structure labeled as 1 in thr accompanying figure ?
Gamete
Which tissue system of the plant body is largely responsible for photosynthesis
Ground tissue system
Which is a basic difference between gymnosperms and flowering plants
Gymnosperms produce seeds that are enclosed within a fruit,while flowering plants produce seeds borne naked
What is the purpose of the waxy cuticle plants?
It prevents desiccation
What is the most ancient group of plants alive today ?
Liverworts
Which statement about food chains is FALSE
Mice consumption of grasses is harmful to the grassea
Most conifers have separate male and female reproductive parts on the same tree.This condition is referred to as:
Monoecious
A community consists of ____ species in a given area
One two three four ALL
Which pair best represnts photosynthesis organisms?
Primary producer and autotroph
What is the third trophic level of food chain?
Secondary consumers
Why are seeds reproductively superior to spores?
Seeds contain a young plant and also are protected by a seed coat
___ join roots to leave and may be above or underground
Stems
Conidia are asexual spores
TRUE
In algae,gametangia are generally unicellular
TRUE
What type of root system is prevalent of eudicots
Taproot
Which statement reflects a key concept about ecosystem
There is one-way flow of energy through the food webs of ecosystems
Which statement about decomposers is FALSE?
They include bacteria but not fungi
What do the xylem and phloem make up of in a plant
Vascular tissue
What is an example of a plant disease caused by a basiodiomycete
Wheat rust
What is the male sexual structure that produces sperm in plants
Antheridium
The sac fungi are characterized by sexual reproductive structures called
Asci
Organisms that manufacturers their own food are known as
Autotrophs
Which statement about gymnosperms and angiosperms is FALSE
Both groups have free-living gametophytes
Fungi that lack speta are called
Coenocytic
The difference between taproot and fibrous root systems is that a taproot system:
Consist of one main root with lateral roots while a fibrous root system has many roots of the same size
Which of the following is a vascular plant
Fern
Lichens are most typically formed by the symbiotic association of an alga or cyanobacteria and a
Glomeromycete
A ___ is a filament that makes up the vegetative body of most fungi
Hypha
Which is a differentiating characteristic of land plants from green algae?
Land plants have a waxy cuticle
How do mycorrhizae benefit plants
Mycorrhizae increase a plant's absorptive surface area of roots
Which process is not involved in the hydrologic cycle?
Nitrification
Most fungal spores are ___ reproductive cells that are produced ___
Nonmotile;sexually or asexually
Which genus is used to produce beer and wine ?
Saccharomyces
As a seed develops from an ovule,the ovule wall enlarges and develop into a
Seed coat
One function of roots is:
The storage of food reserves
What is the function of the phloem in plants
To transport dissolved sugars
How is the pollen of pine trees primarily disseminated
Wind
What do the large female cones of a pine tree contain ?
Megasporangia
Roots,stem, leaves,flower parts,and fruits are referred to as:
Organs
Which of the following is a function of stems
Produce new tissues
Which are the three main roles played by organism in community life
Producer,consumer, decomposer
When bread gets moldy with visible black or blue spots,you are looking at masses of the colored
Spores
A growth ring is composed of xylem
TRUE
Modern botanists think that all plant evolved from common ancestor that was an ancient green algae.what is the best explanation for this hypothesis?
They share many biochemical and metabolic traits