Like all plants, angiosperms have an alternation of generations. What structure is a gametophyte in the angiosperm life cycle?

Answer: Pollen grain

Gravitism may involve what?

Answer: The shifting of starch-rich plastids

Two types of fruits of seed dispersal

Where does fertilization occur in angiosperms?

In what plant structures would you find gametes? Select all that apply.

What plant structures contain or surround plant embryos? Select all that apply.

Suppose it were possible for a plant to survive with an auxin deficiency. Such a plant would

Answer: Lean toward the light more slowly than a normal plant.

True or False? A plant on a windowsill is growing toward the light. If the owner turns the plant around (a 180-degree turn), auxins will migrate to the other side of the stem.

Answer: True

What is the relationship among births, deaths, and carrying capacity in equilibrium species?

If you added "predation" to the concept map, what connections could you make to it? (Select all that apply.)

In a certain forest community, fallen trees and dead animals take longer than normal to release their nutrients back into the ecosystem. This community probably has a low population of

Answer: Decomposers

How might you add "Keystone species" to the concept map?

Answer: Keystone species influence the diversity of communities.

True regarding the relationship between the abiotic environment and trophic levels.

Herbivory has the same effect on the two species involved as does

What process in the carbon cycle has increased carbon dioxide in the atmospheric reservoir and in the ocean, causing damage to ecosystems?

Answer: Burning fossil fuels

Select all the processes that either add or remove carbon dioxide from the atmosphere reservoir.

Answer:

5. Dissolution

6. Combustion

How do gases like CO2 contribute to Earth's warming temperatures?

The steps of photosynthesis in which light energy is converted into chemical energy

Group of pigments and proteins that uses light energy to energize electrons stripped from water

Group of pigments and proteins that uses light energy to energize electrons received from photosystem II

Series of membrane proteins that shuttle electrons

Answer: Electron transport chain

Enzyme that uses the potential energy in a proton gradient to produce ATP

Answer: ATP synthase

Where does the Calvin cycle occur

Other name for Calvin cycle

How many plant species are C3

What is the first stable compound in the pathway C3

What is the efficiency rate of C3

Answer: 0.1%-3%

How do plants waste so much solar energy?

Answer: Photorespiration

Series of reactions that begin when the rubisco enzyme adds O2 instead of CO2 to RuBP.

What happens if plants close their stomata?

What do C4 and CAM do

In C4 where do light reactions occur?

Surround the leaf veins

Answer: Bundle-sheath cells

In C4 what does the inner ring of bundle-sheath cells house

Answer: Calvin Cycle

In C3 where do the light reactions and the Calvin cycle take place?

What percentage of plants uses the C4

What type of plants use the C4

They open their stomata only at night, fix CO2, then fix it again in the Calvin cycle during the day. Unlike in C4 plants, both fixation reactions occur in the same cell.

What percentage of plants use CAM pathway?

Answer: 3-4% (pineapple, cacti)

Limitation of C3

Answer: Photorespiration

Limitation of C4

Limitation of Calvin Cycle

An enzyme involved in the first major step of carbon fixation, a process by which atmospheric carbon dioxide is converted by plants and other photosynthetic organisms to energy-rich molecules such as glucose.

Where does photosynthesis take place?

What 2 stages does photosynthesis occur in?

Answer:

1. Light

Nucleotide that stores potential energy in the covalent bonds between its phosphate groups

Molecule that carries pairs of energized electrons in photosynthesis

What type of process is photosynthesis

Group of proteins that shuttle electrons from carrier to carrier, releasing energy with each step

Answer: Electron transport chain