Exam 3

Which plants produce seeds?

Angiosperms + gymnosperms

What does the apical meristem do?

conducts water from roots to shoots

What does the collenchyma do? Gives flexible strength (eg celery strings)

What does the parenchyma do? Most of the plant is made of this

What does the lateral meristem do? Found in regions of increase in diameter/girth of plant

In what life cycle does the sporophyte generation produces spores?

life cycle of a fern

In addition to seeds, which of the following characteristics is unique to seed-producing plants?

pollen

If you go outside and see that the street is covered in a yellow ‘dust’, what is that most likely

It is pine pollen and is so abundant because the pines are wind-pollinated

What are the closest relatives of pine and spruce trees?

gnetophytes, cycads, and gingkos

What structure in an angiosperm is triploid?

Endosperm

What is a characteristic of all angiosperms

Double internal fertilization

What is a similarity between fungi and arthropods

Both groups use chitin for support

What are the filamentous mats formed by fungi called

Hyphae

What is the concern for farmers who use fungicide for pathogenic fungi growing on their plants

it might kill the mycorrhizae

What structure carries out sexual reproduction in ascomycetes?

Ascocarps

What group would a gamete of a fungal species that has flagella be in

Chytrids

What trait do all fungi have

heterotrophy

What phylum are most of the fungi we eat in

Basidiomycota

What characteristic is common to all animals

Multicellular

What do organisms with deuterosome development have in common

The blastopore formed during gastrulation becomes the anus

What do tentacles of sea anemones have

Cndiocytes

Which characteristic do both cnidarians and flatworms have

Dorsoventrally flattened bodies

Are platyhelminthes diploblastic or triploblastic?

Diploblastic

Are cnidaria diploblastic or triploblastic?

Diploblastic

Are mollusca diploblastic or triploblastic?

Triploblastic

Are echinodermata diploblastic or triploblastic?

Triploblastic

Are Arthropoda diploblastic or triploblastic?

Triploblastic

What phylum has the most successful species on earth

Chordata

What are protostomes

The blastopore becomes the mouth

Diploblasts make all the germ layers except what?

Mesoderm

What are porifera

Tissues are loosely organized and has choanocytes

What are mollusca

Triploblastic eucoelomates; may or may not have a shell/radula

What are Platyhelminthes

acoelomate worms with an incomplete gut

What are echinodermata

deuterostomes with pentaradial symmetry as adults

What are nematoda

pseudocoelomate (=blastocoelomate) worms with a complete gut

What does the petal do

attract pollinators with color/scent

What does the stamen do

Production of pollen

What does the style do

pollen tube forms here/sperm travel down to ovary

What does the sepal do

protects flowerbud and does photosynthesis

What does the stigma do

sticky part of pistil/pollen lands there

What is the heterokaryotic stage of fungus life cycles

cytoplasm is fused but the 2 nuclei (from each parent) are unfused

What is karyogamy

the process by which 2 nuclei fuse in fungi