BSC 114 Lecture Notes - Lecture 8: Organic Compound, Inner Membrane, Oxidizing Agent

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plumtermite154

30 Sep 2016

School

University of Alabama

Department

Biological Sciences

Course

BSC 114

Professor

Daryl W.Lam

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Document Summary

Energy flows into an ecosystem as sunlight and leaves as heat. Photosynthesis generates oxygen and organic molecules (sugars), which are used in cellular respiration. Cells use chemical energy stored in organic molecules to regenerate atp, which powers most cellular work. Cellular respiration- a set of metabolic reactions and processes that take place in the cells of an organism to convert chemical energy from nutrients into atp o. The net reactions involved in respiration are catabolic reactions (release energy) that involve the oxidation (loss of electrons) of one molecule and the reduction (gain of electrons) of another. The breakdown of organic molecules by catabolic reactions is exergonic. Aerobic respiration- consumes organic molecules (glucose) and oxygen to produce atp. Fermentation- produces atp through partial degradation of sugars that occurs without using oxygen: anaerobic. Technically, the term cellular respiration includes both aerobic and anaerobic respiration even though it is often used synonymously with aerobic respiration.

Related Questions

While Jill and Andre were studying for their Biology exam, Andre said, âAnimals perform cellular respiration and plants perform photosynthesis.â What about Andreâs statement should Jill have told him was incomplete?

Animals also perform photosynthesis.

Plants do not perform photosynthesis.

Animals do not perform cellular respiration.

Plants also perform cellular respiration.

There is nothing incomplete about Andreâs statement.

Question 3

Select one answer.

10 points

Select the incorrect statement regarding respiration and fermentation from the list below.

Respiration produces much more ATP than fermentation

Respiration produces acidic products, fermentation does not.

Both respiration and fermentation use organic molecules.

Respiration uses oxygen, fermentation does not.

Question 4

Select one answer.

10 points

Energy is harvested from which reaction to produce ATP?

Carbon dioxide and water â sugar and oxygen.

Sugar and oxygen â carbon dioxide and water.

Question 5

Select one answer.

10 points

What is the source of energy for photosynthesis?

Light

CO2

Water

Sugar

Question 6

Select one answer.

10 points

One way to explain how cellular respiration and photosynthesis relate to each other is to say that:

Plant cells use the oxygen produced by respiration for photosynthesis.

The oxygen produced by photosynthesis, once released to the environment, is the oxygen able to be used as the electron acceptors for cellular respiration.

Cellular respiration is a series of reduction reactions while photosynthesis is a series of oxidation reactions.

The two processes are not related.

The use of oxygen by plants contributes to the greenhouse effect.

Question 7

Select one answer.

10 points

The calculated net amount of ATP produced from one glucose molecule during aerobic respiration in eukaryotes is

100

Question 8

Select one answer.

10 points

All of the following statements is true of photosynthesis, EXCEPT:

Releases CO2

Releases oxygen

Glucose is produced.

Water is required

Question 9

Select one answer.

10 points

Which of the following is an anabolic pathway?

photosynthesis

cellular respiration

fermentation

all of these processes

Question 10

Select one answer.

10 points

Plant leaves contain many different pigments. What is the purpose of having multiple pigments?

Capture light for photosynthesis at different wavelengths.

To absorb light that may harm the photosynthetic machinery.

To give leaves different colors in the fall.

orchidpig270

The complete set of reactions carried out by an organism is called:

a. anabolism

b. catabolism

c. metabolism

Value: 2

The breakdown of starch is broken down to glucose is an example of:

a. anabolism

b. catabolism

c. metabolism

Value: 3

For the following statement, determine which description best describes the process: DNA is synthesized from free nucleotides.

a. anabolism

b. catabolism

c. metabolism

Value: 4

Fill in the blank: Catabolic reactions result in the synthesis of molecules of .............via cellular respiration. This is then used to power anabolic reactions.

Value: 5

The energy in organic molecules is released in a series of steps because:

a. it is not possible to release it in a single step.

b. more total energy is released in multiple steps than would be released in a single step

c. less total energy is released in multiple steps than would be released in a single step.

d. more energy can be harvested for cellular use in multiple steps than from a single step.

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photosynthesis

1-The light reaction of photosynthesis does not include

a. chemiosmosis

b. oxygen liberation

c. glucose synthesis

d. electron transport

Value: 2

Photosynthesis takes place in the membranes of small sacs called

a. thylakoids

b. photosystems

c. stroma

d. photons

Value: 3

During what stage of photosynthesis is O2 produced?

a. the light-dependent reactions involving photosystems I and II

b. carbon fixation

c. the Krebs cycle

d. O2 is not produced during photosynthesis

Value: 4

The pigment molecules responsible for photosynthesis are located in the

a. mitochondria

b. cytoplasm of the cell

c. stroma of the chloroplast

d. thylakoid membrane of the chloroplast

Value: 5

During what stage of photosynthesis are ATP and NADPH converted to ADP + Pi and NADP+?

a. the light-dependent reactions

b. the light-independent reactions

c. both of the above

d. none of the above

Value: 6

What energy-rich organic compound is produced as a result of the Calvin cycle?

a. ATP

b. NADPH

c. glucose

d. H2O

Value: 7

During photosynthesis, photons raise electrons to higher energy levels. These excited electrons belong to what compound?

a. water

b. ATP

c. chlorophyll

d. electron transport chain

Value: 8

Which of the following statements accurately describes the relationship between photosynthesis and cellular respiration?

a. photosynthesis occurs only in autotrophs; cellular respiration occurs only in heterotrophs

b. photosynthesis uses solar energy to convert inorganics to energy-rich organics; respiration breaks down energy-rich organics to synthesize ATP

c. photosynthesis involves the oxidation of glucose; respiration involves the reduction of CO2

d. the primary function of photosynthesis is to use solar energy to synthesize ATP; the primary function of cellular respiration is to break down ATP and release energy

True or False: Oxygen and glucose are produced by photosynthesisand consumed in cellular respiration.

True

False

Question 2

Select one answer.

10 points

A photosythetic plant has red leaves. Which colors of light willbe most effective at generating oxygen?

red and blue light

red and green light

green and blue light

Question 3

Select one answer.

10 points

Select the incorrect statement regarding respiration andfermentation from the list below.

Both respiration and fermentation use organic molecules.

Respiration produces much more ATP than fermentation

Respiration uses oxygen, fermentation does not.

Respiration produces acidic products, fermentation does not.

Question 4

Select all that apply.

10 points

What are the outputs of photosynthesis? Select all thatapply.

light

CO2

water

sugar

Question 5

Select one answer.

10 points

Respiration is ...

anabolic because it breaks down sugar.

anabolic because it builds CO2.

catabolic because it breaks down sugar.

catabolic because it builds CO2.

Question 6

Select one answer.

10 points

Which of the following is an anabolic pathway?

all of these processes

fermentation

photosynthesis

cellular respiration

Question 7

Select one answer.

10 points

The calculated net amount of ATP produced from one glucosemolecule during aerobic respiration in eukaryotes is

100

Question 8

Select one answer.

10 points

Plant leaves contain many different pigments. What is thepurpose of having multiple pigments?

To absorb light that may harm the photosynthetic machinery.

Capture light for photosynthesis at different wavelengths.

To give leaves different colors in the fall.

Question 9

Select all that apply.

10 points

What is required for photosynthesis? (Select all thatapply.)

Oxygen

Carbon dioxide

Carbon monoxide

Water

Glucose

Light

Heat

Question 10

Select one answer.

10 points

All of the following statements is true of photosynthesis,EXCEPT:

Water is required

Releases CO2

Glucose is produced.

Releases oxygen

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BSC 114 Lecture Notes - Lecture 8: Organic Compound, Inner Membrane, Oxidizing Agent

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