03.19.24 Carrying Capacity and Photosynthesis

03.19.24 Carrying Capacity and Photosynthesis

Multiple Choice

What type of growth is demonstrated in the graph?

• Exponential

• Carrying capacity

• Linear

• Negative

Multiple Select

Exponential Growth occurs when-

• populations have plenty of food/space

• home to keystone species

• have few evasive species in a habitat

• have little to no competition or predators

Multiple Choice

What point on the graph represents the carrying capacity?

• A

• B

• C

• D

Multiple Choice

Logistic growth displays a ____-shaped curve which indicates a population size capped at carrying capacity.

• J

• S

• C

• V

Multiple Choice

If the carrying capacity of a predator decreases, what will happen to the carrying capacity of the prey?

• Will Increase

• Will Decrease

• Will stay the same

Multiple Choice

A scientist was studying a population of fish in a pond over a period of 10 years. He observed that

the population increased each year for 3 years, and then remained nearly constant for the rest of

the study. The best explanation for this observation is that the population had

• stopped reproducing

• reached carrying capacity

• mutated into a different species

• run out of food and all died

Multiple Choice

The graph to the right shows the interaction of the wolf and moose populations on Isle Pekie. If the moose population continues to increase, the wolves' food supply will increase. What will most likely happen to the wolf population as a result?

• It will decrease.

• It will increase.

• It will remain the same.

Photosynthesis

Open Ended

In your own words: what is photosynthesis?

Multiple Choice

Which of the following are products of photosynthesis?

• glucose and oxygen

• glucose and water

• carbon dioxide and water

• ATP and sunlight

Multiple Choice

Which of the following is a reactant of photosynthesis?

• oxygen

• carbon dioxide

• ATP

• glucose

Multiple Choice

Which of the following equations represents the overall chemical reaction for photosynthesis?

• 6O2+ 6H2O → C6H12O6+ 6O2

• C6H12O6 + 6H2O→ 6O2+ 6O2

• 6CO2+ 6H2O→ C6H12O6+ 6O2

• 6O2 + 6H2O→ C6H12O6 + 6CO2

Multiple Choice

Chlorophyll is green because

• it absorbs green wavelengths of light
• it absorbs blue and yellow wavelengths of light
• it reflects green wavelengths of light
• it is an optical illusion caused by the transmission of light

Open Ended

Would a plant grow well in green light? Why or why not?

In photosynthesis, there are two reactions that occur.

Use the ATP and NADPH to convert carbon dioxide and other compounds into glucose.

Also known as the Calvin Cycle or "Dark" Reactions.

Light-Independent

Convert light energy into chemical energy.

The goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to produce ATP and NADPH.

These two energy-storing molecules are then used in the light-independent reactions.

Light-Dependent

Two Reactions

Multiple Select

In photosynthesis, what are the two major reactions that take place?

• Light Dependent Reaction

• Glycolysis

• Light Independent Reaction (also called Calvin Cycle or Dark Reaction)

• Kreb's Cycle

Multiple Choice

What are the two products of the light reactions that are needed for the calvin cycle?

• NAD and NADPH
• NADP + and Glucose
• NADPH and ATP
• Oxygen and NADPH

Multiple Choice

What is the ultimate ORIGINAL source of energy for living things

• Sugar
• Sun
• Moon
• Carbon Dioxide

Draw

Draw a model of photosynthesis - be sure to include which molecules are products and which ones are reactants.