Bisc 160 Exam 3 Review

All of the following statements are correct regarding the Calvin cycle except:

• The energy source utilized is the ATP and NADPH obtained through the light reactions.

• These reactions begin soon after sundown and end before sunrise.

• The 5-carbon sugar RuBP is constantly being regenerated.

• One of the end products is glyceraldehyde 3-phosphate.

• Rubisco attaches carbon dioxide to ribulose bisphosphate.

Tags

NGSS.HS-LS2-5

Carbon fixation takes place in

• the thylakoid lumen.

• the cytoplasm surrounding the chloroplast.

• chlorophyll molecules.

• the outer membrane of the chloroplast.

• the stroma of the chloroplast.

Tags

NGSS.HS-LS2-5

The light-independent reactions ______ while the light reactions ______.

• make O2; split water

• split H2O; make ATP

• fix CO2; make NADPH

• fix CO2; use ATP

• make ATP; split water

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which of the following is a true statement?

• Only noncyclic electron transport produces NADPH

• Only noncyclic electron transport produces ATP.

• Only noncyclic electron transport produces a proton gradient.

• Only noncyclic electron transport produces uses photosystems.

• Only noncyclic uses the electron transport chain.

What happens when chlorophyll absorbs photons?

• the photons break covalent bonds.

• the photons break hydrogen bonds.

• the photons excite protons.

• the photons excite electrons.

• the photons remove electrons from atoms.

Tags

NGSS.HS-LS1-5

What is the primary function of the light reactions of photosynthesis?

• to produce energy-rich glucose from carbon dioxide and water

• to produce ATP and NADPH

• to convert light energy to the chemical energy of G3P

• to produce NADPH used in cellular respiration

• to use ATP to make glucose

Tags

NGSS.HS-LS1-5

In anaphase of mitosis, you would observe that

• kinetochores form

• chromosomes line up on a central plate/line

• daughter chromosomes are present

• the cell membrane divides

• chromosomes condense

Tags

NGSS.HS-LS1-4

Which phase of the cell cycle is incorrectly matched with what occurs in that phase?

• G1; ATP is produced

• S; sister chromatids are produced

• G2; spindle microtubules synthesized

• Mitosis; nucleus divides

• Cytokinesis; formation of separate nuclei

Tags

NGSS.HS-LS1-4

At what point in the cell cycle has DNA not already been replicated?

• G1

• S phase

• Interphase

• G2

• Prophase

Which of the following molecules is responsible for fixing nucleotide mismatches (e.g. mutations) in the double stranded DNA?

• DNA polymerase

• Primase

• RNA polymerase

• Helicase

• Mutase