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mighty microbes
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50
Biology
Undergraduate 1
02/19/2013

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Term
Energy
Definition

is the capacity to do work.  

Cellular work includes processes such as 

building complex molecules and moving 

substances in and out of the cell.

Term
chemical energy
Definition

potential 

energy stored in the bonds of biological 

molecules.  Breaking these bonds releases 

that stored energy, making it available to 

power cell functions. (in food)

Term
Algae
Definition
very efficient energy converters – the oil they produce is rich in chemical energy.  All they need to make this oil is sunlight, carbon dioxide, water, nitrogen, and phosphorus.
Term

conservation of 

energy

Definition

Energy cannot be created or destroyed.  When energy is 

transferred from food or fuel to the organisms or products that use it, that energy changes form.

Term
potential energy
Definition

(stored energy) in the chemical bonds that hold the 

molecules of that bar together. (cereal bar)

Term
kinetic energy
Definition
(the energy of motion or movement) of muscle contraction and heat
Term
heat
Definition
the kinetic energy generated by random movement of molecules or atoms
Term
sun
Definition
the ultimate source of energy
Term
Autotrophs
Definition
are organisms such as plants, algae, and certain bacteria that capture the energy of sunlight by photosynthesis.
Term
Heterotrophs
Definition
are organisms that obtain energy by eating other organisms.
Term
Photosynthesis
Definition
is the process by which plants and other autotrophs use the energy of sunlight to make energy-rich molecules using carbon dioxide and water
Term

The process of photosynthesis can be 

summarized in the following equation:  

Definition
Sunlight + Water + Carbon dioxide ---> Oxygen + Glucose
Term
chloroplasts
Definition
organelles present in leaves and algae
Term
Photosynthesis has two parts??
Definition
“photo” part and a “synthesis” part.
Term

 “photo”

part

(photosynthesis)

Definition
light energy is captured in chemical form
Term

“synthesis”

part

(photosynthesis)

Definition

chemical energy is used to generate glucose molecules 

using the carbon atoms of carbon dioxide.

Term
Light energy
Definition

 is the energy of the electromagnetic spectrum of 

radiation.

Term
photons
Definition
packets of light energy.  Photons of different wavelengths contain different amounts of energy
Term
carbon fixation
Definition
Photosynthesis captures carbon dioxide gas from the air and incorporates those carbon atoms into sugar
Term
Chlorophyll
Definition
is the pigment present in the green parts of plants that absorbs photons of light energy during the light reactions of photosynthesis.
Term
adenosine triphosphate (ATP)
Definition
used in the “synthesis” part of photosynthesis to make sugar.
Term
Obesity leads to.....?
Definition

 

  increased rates of heart disease,diabetes,and other related illnesses.

Term
what helps to determine whether a person falls within a healthy weight range?
Definition
Gender,body type,and frame size
Term
Body Mass Index (BMI)
Definition
estimates body fat based on height and weight
Term
BMI between 25-29.9
Definition
over weight
Term
BMI of 30 and above
Definition
obese
Term
metabolic syndrome
Definition
the frequent association of obesity, type 2 diabetes, high blood pressure, cardiovascular disease, non alcoholic fatty liver disease and cancer
Term
calorie
Definition
is the amount of energy required to raise the temperature of 1 gram of water by 1degree celsius
Term
glycogen
Definition
is a complex animal carbohydrate, made up of linked chains of glucose molecules.(short term energy storage)(extra energy stored in muscle and liver cells)
Term
triglycerides
Definition
are a type of lipid found in fat cells that are used for long-term energy storage.
Term
aerobic respiration
Definition
is the series of reactions that occurs in the presence of oxygen and converts energy stored in food into ATP
Term
The aerobic respiration of glucose can be summarized by this equation:
Definition
Glucose + Oxygen -----> Carbon dioxide +Water +Energy (+heat)
Term
Glycolysis
Definition
takes place in the cytsplasm and is the first step of aerobic respiration. (Breaks down sugar into smaller units)
Term
Citric acid cycle (2nd step of aerobic respiration)
Definition
a series of reactions that helps extract energy from food. This process releases carbon dioxide.
Term
Electron transport
Definition
produces the bulk of ATP during aerobic respiration
Term
fermentation
Definition
occurs in the cytoplasm and converts the products of glycolysis into lactic acid or alcohol.
Term
trans fat
Definition
is a type of vegetable fat that has been hydrogenated to make it solid at room temperature (processed foods)
Term
saturated fat
Definition
animal fat
Term
unsaturated fats
Definition
comes from plants and liquid at room temperature (healthier)
Term
DNA (deoxyribonucleic acid)
Definition
a hereditary molecule that is passed from parents to offspring found in the nucleus of eukaryotic cells
Term
chromosome
Definition
  • consists of a single DNA molecule wrapped around proteins
  • 23rd chromosome pair determines a persons sex
Term
nucleotides
Definition
consists of a sugar , a phosphate, and a base
Term
PCR
Definition
is a labortory technique used to replicate a specific DNA segment
Term
Genome
Definition
one complete set of genetic instructions encoded in the DNA of an organism
Term
genetic fingerprint
Definition
variation in noncoding sequences provided
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