Bio q2 quiz 1 11/9/18

This investigation was performed again with identical conditions except with a hydrogen peroxide solution at ph8. Predict the number of mL of gas that was collected in one minute

10

Mad cow disease is a fatal disease that destroys brain tissue m. Researchers have found that a prion protein which is an abnormally constructed molecule, is responsible. Which statement best describes the characteristics a protein must have to function correctly?

A protein is a long chain of amino acids folded into a specific shape

Many hormones are proteins used in cellular communication. Each hormone carries a specific message to specific target cells. State why each of these hormones is able to deliver a different message.

Each has its own shape that reacts with a certain receptor

Identify the end products of protein digestion that made up the contents of test tube B after the 2 hours

Ending of the digestion system process

Organisms contain compounds such as proteins starches and fat. The chemical bonds in these proteins can be a source of

Energy

During cellular respiration, what is the direct source of the energy used in the cells of consumers in the ecosystem represented below?

Enzymes

Bases on the investigations, the student should conclude that enzymes

Function best within a specific range of conditions

If a starch digesting enzyme were added to a sports gel that lists starch as an ingredient, which substance would increase in concentration?

Glucose

The energy in a starch molecule is stored

In the bonds between atoms

The building blocks for a starch molecule are

Molecular bases

Which statement best describes some protein molecules in a cell?

Proteins are long, folded chains that can form various cell parts

Organic compounds are used as building blocks for

Proteins, starches and fats

Explain the importance of temperature in the functioning of enzymes

Temperature effects protein shape and thus effects function

Process x is most likely caused by

The synthesis of a protein with different simple sugars

Which statement is most likely correct regarding soil bacteria that inhabit the polar regions of the earth?

They are part of the abiotic resources of that ecosystem

In living cells, chemical processes, such as synthesis, all require the action of

biological catalysts

The shape of a protein molecule directly determines its

functions inside and outside of cells

An energy rich organic compound needed by organisms is

glucose

Proteins, starch, and DNA are similar in that they are all

organic compounds

The amino acids bond together to form which type of complex molecule?

protein

Which group consists entirely of organic molecules?

protein, starch, fat

A catalyst increases the rate of a chemical reaction by

providing an alternate reaction pathway

Even though human proteins are synthesized from only 20 different amino acids, there are thousands of different proteins found in human cells. This great variety of proteins is possible because the

sequence and number of amino acids can be different in each protein

A fully functioning enzyme molecule is arranged in a complex three dimensional shape. This shape determines the

specific type of molecule it interacts with during a reaction