BIOL BSU 192 Exam 2

What is a difference between algae and land plants?

algae zygotes are released in water, land plant zygotes develop into an embryo.

you place moss spores on wet soil. Which event must take place before you can see little green mosses?

The spores must germinate, and the gametophyte must start growing.

Do Biocrusts provide benefits to the environment?

Yes

In ferns, which stage in dominant?

Sporophyte

What is the difference between a spore and a seed?

A seed has an embryo.

What are the characteristics of seed plants?

They do not need water for fertilization, the seed replaces the spore as a means of dispersion, and the megagametophyte is retained, and depends on the sporophyte.

What mechanism do plants use to compete for light?

Secondary growth

Cornifers have secondary growth, why is this an advantage?

It allows the plant to grow taller because of the greater support in the stem.

Is the sporophyte or the gametophyte considered diploid?

Sporophyte

What is the derived characteristic for angiosperms?

Flowers

What type of plant has leaves with parallel veins?

Monocot

What type of plant has randomly spaced vascular tissue?

Monocot

Microsporangia are ___, while Megasporangia are ___.

Male, female.

Are anthers the male or female part of a plant?

Male

True or False: Self fertilization produces offspring genetically identical to the parent

False

What does the protoderm turn into?

Epidermis

What primary meristem grows into the vascular tissue of the plant?

Procambium

Does growth occur from the middle of the plant?

No

The length of a plant shoot increases as a result of cell division in the ______

Apical Meristem

What gives roots better water and sugar absorption?

Better surface area

What vascular tissue carries water?

Xylem

Which vascular tissue is Bi-Directional?

Phloem

When is the stomata open?

Day

If you water a plant with saltwater, which way will water move?

Out of the roots, into the soil.

Water moves in the xylem due to the _____

Transpiration Pull

Water moves from ____ to _____ solute concentrations.

Lower, Higher

What are some examples of sinks in plants?

roots, young leaves and fruits, any part that is growing.

What is the main carbohydrate that plants use?

Sucrose

A plant shoot curving upward is an example of?

negative gravitropism, or positive phototropism.

T or F: the same virus that affects a tree will likely infect a deer.

False

What key nutrient do carnivorous plants gain from eating other organisms?

Nitrogen

The extra layer of sporophyte tissue that hardens into the seed coat is called….

Integument

On pines, the smaller cones are ____, and are found on the _____ half of the tree.

Male, Lower

What part of the flower receives pollen?

Stigma

Leaves with netted veins are what type of plant?

Eudicot

What part of the plant is responsible for the movement of the plant and where it bends?

Auxin

Do cytokinins induce leaf and flower aging?

No

Are viruses made up of a sugar capsule and a nucleic acid genome?

No

Do viruses exhibit tropism, where they only affect certain cells within a host?

Yes

T or F: COVID-19 contains RNA genetic material.

True