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Chapter 4 Cards
Mr. R's Chapter 4 Cards
23
Biology
Not Applicable
10/02/2005

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Term
All organisms get energy by breaking dwon the ____ _____ in food and making ____ and other molecules.
Definition
chemical compounds
ATP
Term
The molecule, called adenosine triphosphate or ____ is the chief energy-storing molecule used by organisms.
Definition
ATP
Term
Organisms that cna make food from carbon dioxide and an energy source such as sunlight are called ______.
Definition
autotrophs
Term
Organisms that cannot make their own food are called _______.
Definition
heterotrophs
Term
List three types of heterotrophs.
Definition
A. animals
B. fungi
C. unicellular organisms
Term
List three types of autotrophs.
Definition
A. Plants
B. Algae
C. Some bacteria
Term
What food is mainly made by autotrophs?
Definition
Carbohydrates
Term
The process by which autotrophs convert sujnlight to a usable form of energy is ________.
Definition
Photosynthesis
Term
A _____ is a molecule that absorbs certain wavelengths of light and reflects others.
Definition
pigment
Term
The most common and important of these photosynthetic pigments is called _____. _____ absorbs violet, blue, and red light.
Definition
Chlorophyll
Term
A ____ is an organelle that perfoms photosynthesis.
Definition
Chloroplast
Term
The process of constructing carbohydrates from carbon dioxide- the second stage of photosynthesis occurs in the _____ ______.
Definition
Calvin cycle
Term
What is a thylakoid?
Definition
A thylakoid contains ligt collecting photosystems with chlorophyll.
Term
Thylakoids occur in stacks called _____.
Definition
Grana
Term
The process by which glucose molecules are broken down to release engergy is _____ ______.
Definition
Cellular respiration.
Term
______ is the process by which glucose is converted to pyruvate and energy is released.
Definition
Glycolysis
Term
The ____ _____ is a set of reactions that breaks down acetyl-CoA to form CO2, ATP, NADH and FADH2.
Definition
Krebs cycle
Term
_____ ______ is the process by which energy is transferred from HADH and FADH2 to ATP.
Definition
Electron transport
Term
_______ is the extraction of energy from pyruvate in the absence of oxygen.
Definition
Fermentation
Term
A _____ is the amount of heat energy needed to raise the temperature of 1 gram of water1 degree Celsius
Definition
calorie
Term
Name the two types of fermentation.
Definition
A. Alchoholic fermentation
B. Lactic Acid Fermentation
Term
What is a food chain?
Definition
The Pathway for the transfer of energy within an ecosystem; each organism provides food for the next higher organism.
Term
Energy from _____ passes through a series of living organisms.
Definition
sunlight
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