Plant Physiology - Photosynthesis Questions and Answers

The Puritans advanced intellectual recognition for the American Colonies in what way? A. Through their political pamphlets which they distributed to all Puritans in the colonies B. Through the publication of tracts of their strict religious doctrines C. By establishing a publishing center at Boston -- the second

The glycolysis pathway and gluconeogenesis pathway are separated at the following reactions except: 1. Glucose-6 phosphate fructose-6-phosphate 2. Phosphoenolpyruvate → pyruvate 3. Glucose glucose -6 phosphate 4.1,6-bisphosphofructose-fructose-6-phosphate

Stomata are pores on the surfaces of the leaves and stems of plants that regulate gas exchange between the plants and the atmosphere. Researchers found that the stomata density on the leaves of a species of plant change as the concentration of CO₂ in the atmosphere changes. When grown at 350 ppm CO₂ the plant has an average density of 300 stomata per mm², but when grown at 400 ppm CO₂ the plant has an average density of 250 stomata per mm². Which of the following best describes how the ratio of the density of stomata (stomata per mm²) per CO₂ concentration (ppm CO₂) changes as the CO₂ concentration increases? A The ratio decreases from 0.86 to 0.63, because fewer stomata are needed at higher CO₂ concentrations. B The ratio decreases from 1.6 to 1.2, because fewer stomata are needed at higher CO₂ concentrations. C The ratio increases from 0.63 to 0.86, because more stomata are needed at higher CO₂ concentrations. D The ratio increases from 1.2 to 1.6, because more stomata are needed at higher CO₂ concentrations.

The study of rates of chemical reactions. regulation kinetics equilibrium Michaelis-Menten catalysis

Atrazine is an herbicide that prevents plant growth by inhibiting photosynthesis. Atrazine works by binding to proteins in the electron transport chain of photosystem II. Once atrazine binds to the proteins, electrons can no longer travel down the chain to reach photosystem I. Based on this information, how does atrazine stop plant growth? It prevents the formation of ATP and NADPH, which are needed by the light-independent reactions to make sugars. It prevents water from releasing oxygen, which is needed by the light-dependent reactions to fix carbon. It prevents the formation of NADH and FADH2, which are needed by the light-independent reactions to fix carbon. It prevents chlorophyll from creating electrons, which are needed by the light-dependent reactions to make sugars.

Which of the following questions is most relevant to understanding the Calvin cycle? (A) How does chlorophyll capture light? (B) How is ATP used in the formation of 3-carbon carbohydrates? (C) How is NADP+ reduced to NADPH? (D) How is ATP produced in chemiosmosis?

The is also called the dark reaction in photosynthesis. Phantom cycle Krebs cycle Calvin cycle

Producers in an ecosystem generally use photosynthesis to make their own food. Which of the following best describe impacts of photosynthesis on producers and the environment? Choose 2 answers: Oxygen is removed from the atmosphere and converted into an energy source for the producer. Carbon dioxide is removed from the atmosphere and converted into organic molecules. Sugar molecules made using water and carbon dioxide are stored in the producer. Oxygen is removed from the atmosphere and converted into water for use by the producer.

Choose the phrase that best describes glycolysis. A cyclic series of redox reactions that process pyruvic acid and release CO2 and generate ATP and NADH A series ofredox reactions used to generate ATP using energy harvested from the transport of electrons from NADH and FADH2 A multistep process resulting in the enzymatic splitting and oxidation of glucose to form pyruvic acid, with a net gain of 2 ATP The series of catabolic reactions that break down pyruvate to form acetyl CoA and CO2

E) Step 4: Oxidative phosphorylation Complete the following sentences (0.5 points each, 10.5 points total): 1. Oxidative phosphorylation has two components: _____ and _____ 2. The reduced coenzyme _____ produced during glycolysis, Pyruvate oxidation, and Krebs cycle, as well as the reduced coenzyme _____ produced in Krebs cycle, transport _____ and _____ that were originally in glucose. 3. The _____ and _____ donate electrons and protons

5. Prompt- How do plants and animals rely on one another to live? (need help? Think of the bell jar experiment!) Use complete sentences to respond to all parts of this C-E-R. Claim (answer the question): Evidence: Reasoning (what scientific principle supports your claim and evidence): Use scientific writing/language to explain your claim and evidence.

Why do yeast cells undergo fermentation in the absence of oxygen? Energy is captured via substrate level phosphorylation during fermentation To oxidize NADH and produce NAD+ Fermentation produces more ATP than glycolysis for each glucose input. Fermentation produces the starting materials for the citric acid cycle None of these options are correct.

What is the yield from a molecule of Acetyl CoA during one round of the citric acid cycle? molecules of GTP molecules of NADH molecules of FADH2 molecules of CO₂

The initial electron donor during photosynthesis is O NADH O light O NADPH O H₂O

Which is the best chemical expression for the process of photosynthesis? Oxygen + Water + Carbon dioxide = Sugar + Oxygen Water + Carbon Dioxide + Energy = Sugar + Oxygen Carbon Dioxide + Sugar + Energy = Water + Oxygen O Carbon Dioxide + Sugar + Oxygen = Water + Energy

During photosynthesis, which is a product of the Calvin cycle? O₂ ATP CO₂ Sugar