Photosynthesis and cellular respiration

 

Which group of evergreen gymnosperms has needle-like leaves?

• Ginkgoes

• Gnetophytes

• Conifers

• Angiosperms

Pines, cedars and redwoods belong to the largest and most diverse group of gymnosperms known as —

• conifers

• cycads

• gnetophytes

• deciduous

In the photosynthesis equation, 6CO2 + 6H20 -> C6H12O6 + 6O2, what are the reactants?

• Glucose and Carbon Dioxide

• Water and Glucose

• Carbon Dioxide and Water

• Oxygen and Glucose

In nature, energy can be transferred, but not created or destroyed. Explain what the energy source is for photosynthesis, and explain what that energy is eventually transferred into.

• During photosynthesis, light energy from the sun is being converted into chemical energy, in the form of stored molecules such as glucose. This occurs through a series of reactions inside the plant cell.

• Photosynthesis initiates with the absorption of heat energy from the sun, which is converted into chemical energy, producing molecules like glucose. This process takes place in the mitochondria of plant cells

• Photosynthesis relies on electrical energy from the sun, utilized to synthesize complex sugars such as glucose. This energy transformation occurs in the stroma of plant chloroplasts.

During the chemical process of photosynthesis, what is the role of pigments such as chlorophyll?

• Add a phosphate to a molecule of ADP to form a molecule of ATP

• Accept hydrogen ions and shuttle them to the dark cycle of photosynthesis

• Capture photons and send high energy electrons to the electron transport chain

• Use the sun's energy to break down glucose molecules into pyruvate molecules

Plants cannot grow in the dark zone of a cave ecosystem; however, plants that wash into the cave ecosystem are of vital importance. Why are the plants that wash into the cave important to this ecosystem?

• Plants help the chemical decomposition of rocks within the cave ecosystem.

• Plants capture light energy from the Sun that can be transferred to organisms in the cave ecosystem.

• Plants aid in the geothermal energy transferred in the cave ecosystem.

• Plants capture chemical energy from the Sun that can be transferred to organisms in the cave ecosystem.

Which statement describes how the process of photosynthesis converts the inputs to the outputs?

• Photosynthesis combines the molecules in water, carbon dioxide, and light to create an unlimited supply of energy.

• Photosynthesis transforms light energy into stored chemical energy by breaking chemical bonds in carbon dioxide and water and forming new bonds in sugar and oxygen.

• Photosynthesis transforms sugar and oxygen into carbon dioxide, water, and light by making and breaking chemical bonds.

• Photosynthesis dissolves all the inputs and creates the outputs of sugar and oxygen from molecules stored in the soil.

Photosynthesis and cellular respiration are often described as existing in a cycle. Which statement best describes why this is true?

• Plants perform only photosynthesis and animals perform cellular respiration.

• Each reaction results in chemical products that are needed as reactants for the other reaction.

• Plants perform only cellular respiration and animal perform photosynthesis.

• Heterotrophs can perform photosynthesis and cellular respiration, where autotrophs can only perform photosynthesis.

6CO2 + 6H2O → C6H12O6 + 6O2

The equation for photosynthesis is shown. What is produced in this reaction?

• Water

• Sugar

• Carbon dioxide

• Oxygen

Look at the reaction.

6CO2 + 6H2O → C6H12O6 + 6O2

What are the raw materials in the photosynthesis reaction?

• C6H12O6 and 6O2

• 6O2 and 6H2O

• 6CO2 and 6H2O

• 6O2 and O6