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80 Cards in this Set

  • Front
  • Back

What is free energy?

The ability for a system to do work

In a spontaneous change does the energy decrease or increase?

Decrease

Exothermic reaction ______ free energy and is ______

Releases, spontaneous

Endothermic reaction ______ free energy and is _______

Absorbs, nonspontaneous

Oxidation

Substance loses an electron

Reduction

Substance gains an electron

In respiration O2 is _____

Reduced to H2O

In respiration glucose is _____

Oxidized to CO2

Glycolysis

Breaks down glucose into 2 molecules of pyruvate

Citric acid cycle

Completes break down of glucose

Oxidative phosphorylation

ATP synthesis

Two phases of glycolysis

Energy investment phase


Energy pay off phase

Glycolysis occurs in the _____

cytoplasm

Citric Acid Cycle produces ____, ____, and _____

ATP, NADH, and FADH2

Respiration sequence

Glucose ---> NADH ---> Electron transport chain ---> proton motive force ---> ATP

In photosynthesis _____ is reduced and _____ is oxidized

CO2, H2O

Light reactions happen in the _____

Thylakoids

Calvin Benson Cycle happens in the _____

Stoma

Four parts of the light reactions

1) Splits H2O


2) Releases O2


3) Reduces NADP+ to NADPH


4) Produces ATP, ADP

Calvin Benson cycle takes in _____ and releases _____

CO2, and glucose

Chloroplasts reflect what color light?

Green

_____ absorbs the light in the chloroplasts

Granum

3 stages of the Calvin Benson cycle

1)Carbon fixation


2)Reduction


3)Regeneration of CO2 acceptor

What do C3 plants do?

Initiate fixation of CO2

What do C4 plants do?

Use compartmentalization to "pump" CO2

Crassulacean Acid metabolism, causes plants to...

Open stomata at night, and close stomata during the day

What is a cuticle?

Waxy layer to protect the plant, helps to keep water in and keep harmful substances out.

Byrophytes are...

Non-vascular plants

Three types of byrophytes are...

1)Liverworts


2)Hornworts


3)Mosses

Two types of vascular plants are...

1) Seedless


2) Seed

Mosses live in what kind of enviroment?

Wet, rainy

Which is the larger generation?


Gameophytes or Sporophytes?

Sporophytes

The xylem does what?

Moves water and minerals though the plant.

The phloem does what?

Moves sugars, amino acids and other organic products though the plant.

What are two things roots do for plants?

Anchor the plants and absorb water and nutrients

Leaves do what for a plant?

Increase the surface area to absorb more light energy.

Microphylls are...

Leaves with one single vein

Megaphylls are...

Leaves with a large branchlike vascular system

Sporophylls are...

Leaves with sporangia on them

Homosporous production produces....

A single bisexual spore that produces eggs and sperm

Heterosporous production produces...

Megaspores to produce eggs and microspores to produce sperm

A seed consists of...

An embryo surrounded by nutrients covered in a protective coat

Megaspores give rise to...

female gameophytes

Microspores give rise to...

male gameophytes

The ovule consists of...

Megasporangia, megaspore and protective integuments on the sporophyll

Microspores develop into what?

Pollen grains

Do the sperm in gymnosperms and angiosperms have flagella?

No.

3 advantages of seeds?

1) Remains dormant until conditions are right


2) Dispersed in a variety of ways - wind, water, animals


3) Stored food supply

4 phyla of gymnosperms

1) Cycadophyta


2) Gingkophyta


3) Gnetophyta


4) Coniferophyta

Which phyla is the largest of the gymnosperms?

Coniferophyta

What are chytrids?

Fungi that live in water, with flagellated spores.

What are zygomycetes?

Bread and fruit molds

What are pilobolus?

zygomycetes that point their sporangia toward the light.

What are Glomeromycetes

arbuscular mycorrhizae

What are mycorrhizae?

"fungus roots"

Where do ectomycorrhizae fungi grow?

around the roots of plants

Where do endomycorrhizae fungi grow?

Inside the roots, penetrating the cell wall of other plants

What are ascomycetes?

Live in water, produce saclike asci containing ascocarps, "sac fungi"

What are basidiomycetes?

mushrooms, puffballs and shelf fungi, decomposers of wood

What do mycorrhizae do for other plants?

Increase plant productivity

What does fungi do for animals?

Helps break down plant material

Three anions in soil

1) Nitrate


2)Phosphate


3)Sulfate

Three Cations in soil

1)Magnesium


2)Calcium


3)Potassium

Anions leach out of soil into ground water


True or false?

True

3 things in fertilizers?

1)Nitrogen


2)Phosphorus


3)Potassium

A deficiency of a mobile nutrient does what?

Affects older organs rather than young ones

A deficiency of a less mobile nutrient does what?

Affects younger organs than old ones

Define Transcription regulation

transcription factors control transcription of genes

Define post-translational modification

activation of existing proteins in signal response

Hormones cause what?

Tropisms

The auxin hormone does what?

Cell elongation

Cytokinins do what?

stimulate cell division and differentiation

Gibberellins do what?

Stem elongation, fruit growth and germination

Brassinosteriods do what?

induce cell elongation and division in plants

Abscisic acid does what? (ABA)

Seed dormancy and drought tolerance

Plants produce _______ in response to stress

Ethylene gas

Plants also produce ethylene gas when?

Fruit ripening

Blue light photoreceptors control what three things

1)hypocotyl elongation


2)stomatal opening


3)phototropism

Red light photoreceptors control what

Seed germination, Shade avoidance, time of day/seasons

Thigmotropism is

growth in response to touch, vines growing up a stick