04.3 - Test (Curriculum)

Thylakoids contain clusters of chlorophyll and proteins known as________________________________. They absorb sunlight and generate high-energy ( electrons / protons / oxygen atoms / sodium ions ) that pass along the ( photosystem chain / oxygen receptor / electron transport chain / outer membrane ) .

• chloroplasts
• stroma
• photosynthesis
• photosystems

Tags

NGSS.HS-LS1-5

Thylakoids contain clusters of chlorophyll and proteins known as ( chloroplasts / stroma / photosynthesis / photosystems ). They absorb sunlight and generate high-energy ______________________________ that pass along the ( photosystem chain / oxygen receptor / electron transport chain / outer membrane ) .

• electrons
• protons
• oxygen atoms
• sodium ions

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Thylakoids contain clusters of chlorophyll and proteins known as ( chloroplasts / stroma / photosynthesis / photosystems ). They absorb sunlight and generate high-energy ( electrons / protons / oxygen atoms / sodium ions ) that pass along the _______________________ .

• photosystem chain
• oxygen receptor
• electron transport chain
• outer membrane

Tags

NGSS.HS-LS1-5

The light-independent reactions of photosynthesis are also known as ______________________. During this process, energy from ATP and ( carbon dioxide / NADPH / sugar / water / ) is used to assemble high-energy ( electron carriers / proteins / oxygen molecules / sugars ) .

• ATP synthase
• the Calvin cycle
• photosystem 1
• photosystem 2

The light-independent reactions of photosynthesis are also known as (ATP synthase / the Calvin cycle / photosystem 1 / photosystem 2). During this process, energy from ATP and ________________________________ is used to assemble high-energy ( electron carriers / proteins / oxygen molecules / sugars ) .

• carbon dioxide
• NADPH
• sugar
• water

Tags

NGSS.HS-LS2-5

The light-independent reactions of photosynthesis are also known as (ATP synthase / the Calvin cycle / photosystem 1 / photosystem 2). During this process, energy from ATP and (carbon dioxide / NADPH / sugar / water ) is used to assemble high-energy ______________________ .

• electron carriers
• proteins
• oxygen molecules
• sugars

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

The thylakoid membrane contains a protein called ATP synthase. As hydrogen ions pass through the protein, ADP and a phosphate group are combined to form ATP. What is the direct energy source, if any, for the movement of hydrogen ions and the formation of ATP?

• The energy source is the high-energy electrons that accompany the hydrogen ions.
• The energy source is the concentration difference of hydrogen ions across the membrane.
• The energy source is a set of ATP molecules that gather inside the thylakoid.
• There is no energy source; the process occurs without an energy input.

The graph shows how the rates of photosynthesis vary with light intensity for two groups of plants: plants that thrive in direct sunlight, and plants that thrive in the shade. The plants in both groups receive the same amount of water and are kept at the same temperature. For both groups of plants, what best describes the relationship between light intensity and rate of photosynthesis?

• The rate of photosynthesis increases with light intensity, and might be limited by other factors such as water and temperature.
• The rate of photosynthesis increases with light intensity, and it increases without limit.
• The rate of photosynthesis is independent of light intensity, but may be limited by other factors such as water and temperature.
• The rate of photosynthesis is at a maximum over a narrow range of light intensities.

Tags

NGSS.HS-LS1-5

Briana is studying a model of the light-dependent reactions of photosynthesis. The diagram shows a part of this model. Briana notices the electrons that the water molecules release. She asks, “Will the electrons build up in the chloroplast?” Which addition to the diagram would be most useful for answering Briana’s question?

• a wavy arrow that shows Photosystem 1
• an equation for the chemical reaction that forms water from hydrogen ions, electrons, and oxygen molecules
• an arrow that shows the electrons moving through electron carriers, and being received by NADP +
• an equation for the chemical reaction that forms hydrogen gas from hydrogen ions and electrons _______

Tags

NGSS.HS-LS1-5

6. During the light-independent reactions of photosynthesis, carbon dioxide is combined with hydrogen to form sugars. What is the energy source, if any, that allows this process to occur?

• The energy source is high-energy bonds in sugar molecules.
• The energy source is ATP from the light-dependent reactions.
• The energy source is ATP from processes that occur in other organelles of the cell.
• No energy source is used; the process occurs without an energy input.