Biology jeapordy part 2
A single carbon atom can from a maximum of how many single covalent bonds?
4
Elements are pure substances made up of only one kind of
Atom
A __ increases the rate of reaction by lowering the activation energy
Catalyst
List 5 characteristics associated with all living things
Cells •Homeostasis •Growth and development •Energy •Reproduce •Respond to environment •Evidence of adaptation
Water, Ammonia, and glucose are examples of ___
Compounds
Which limiting factor is density dependent
Drought
Which is the negatively charged particle located outside the nucleus of an atom?
Electron
What is activation energy?
Heat added to initiate a reaction
Capillary action is the result of adhesion. Which aspect of water is responsible for this?
Hydrogen bonds that join molecules of water to other substances
A charged atom that has lost or gained electrons is called?
ION
How does an enzyme influence a biological reaction?
It decreases the activation energy necessary to initiate the chemical change
A __ would be the most appropriate SI unit to use when recording the amount of water people consume after exercising.
Meter
Which particle in the nucleus of an atom has a neautral charge?
Neutron
Which element is found in proteins but not carbohydrates or lipids?
Nitrogen
One isotope of carbon differs from another in which way?
Number of neutrons
A hydrogen bond can form between a hydrogen atom of one molecule and which atom of another molecule?
Oxygen
When paper burns in a fire, what is one reactant?
Oxygen
C6H12O6+6CO2 - 6CO2+ 6H2O •WHICH ONE IS THE PRODUCT & REACTANT
Product on right, reactant on left
In analyzing the age structure of a polationm, you discover that an extraordinarily high percentage of the population is younger than the age reproductive maturity. What type of growth will the population probably experience in the future?
Rapid growth
A student set up 4 test tubes containing starch solution in which to perform starch digestion. Supplies included amylase (enzyme that digest starch) and an incubator. In which tube listed would starch digestion proceed most quickly? •TT 1: No amylase, room temperature 25C •TT2: no amylase, body temperature 37C •TT3 Amylase present, room temperature 25C •TT4: Amylase present, body temperature 37C
TT4: Amylase present, body temperature 37C
What phrase carrying capacity refers to ___
The number of organisms a habitat can support
Mice are an example of an r- strategist reproduction pattern because___
They produce many offspring
Which property of water is responsible for capillary action in the stem of a plant?
Water is adhesive to hydrophilic substances
A hydrogen bond can form between water molecules because of which water property?
Water is polar
A single covalent bond forms when two atoms do what?
When they share two electrons
