Exam 2 chapters 4-5

the main purpose of the light reaction is to

• To create NADPH and ATP molecules for the calvin cycle.

• To produce the oxygen we breathe

• convert inorganic carbon to organic carbon

• to break down gluclose molecules into ATP energy.

you placed a red blood cell into a solution and they lyse or break open after 5 minutes this creates

• hypertonic

• hypotonic

• isotonic

• osmotic

which is correct for cellular respiration

• glycolysis -> pyruvate oxidiation -> citric acid ->oxidative phosphorlyation

• pruvate oxidation -> citric acid -> glycolysis -> oxidative phophosrylation

• glycolysis ->pryvuate oxidation -> ctric acid

• All of the above

Stoma leaves are regions in the leaf where

• Water enters the leaf

• Gas enters the leaf

• sunlight centers into the leaf.

• Cholorplasts are stored for photosynthesis

what is the main function of cellular respiration ?

• To supply the cell with carbohydrates

• To generate oxygen

• To produce adenosine triphosphate (ATP)

• To generate oxygen

Which of the following substrate will most easily diffuse through a cell's membrane from a transport protein?

• A small polar molecule (H2O)

• A small non polar molecules (O2)

• A charged ion (Na+)

• A monosaccharide (gluclose)

which of the follwoing shows isotopes

• 1

• 2

• 3

• they will remain equal on both sides

if a plant cell is put into a hypotonic environment , what will happens to it

• A water will enter the plant cell causing it to become turgrid.

• Water will leave the plant cell causing it to become plasmolyzed.

• water will leave the plant cell causing it to become tugrid

• water will enter the plant cell , causing it to become plasmoyd

The pyruvate oxidation step of cellular respiration produces

• ATP,NADH,and pyruvate

• ATP co2 and aceytl coA

• ATP,NADH and co2

• NADH2 , c02, and ceytl

which of the following colors of light is most reflected by the photopigment cholorphyll

• blue

• violet

• green

• red