Polypodium polypodioides is a type of fern that can withstand extreme dehydration by curling its fronds and shriveling its leaves. Once it is in contact with water, this plant will resurrect. Choose two physiological changes that happen once this plant revives. Choose 2 Restoration of photosynthetic capability Stomatal opening allowing the active state for gas exchange Still remain dry but its fronds will uncurl It will produce a flower

Polypodium polypodioides is a type of fern that can withstand extreme dehydration by curling its fronds and shriveling its leaves. Once it is in contact with water, this plant will resurrect. Choose two physiological changes that happen once this plant revives. Choose 2 Restoration of photosynthetic capability Stomatal opening allowing the active state for gas exchange Still remain dry but its fronds will uncurl It will produce a flower

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter7: Releasing Chemical Energy

Section: Chapter Questions

Problem 1SA: Is the following statement true or false? Unlike animals, which make many ATP by aerobic...

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Photorespiration causes a number of impacts on a plant. Which of these drives the ECOLOGICAL difference between C3 and C4 plants Question 4 options: Rubisco mistakes Oxygen for CO2 The plant uses energy to convert the toxic product of photorespiration back into something less harmful The plant needs a large number of enzymes to be able to regain the energy invested in the 2 carbon molecule produced by photorespiration None of these explain the difference The plant needs to do gas exchange to remove oxygen and add CO2 to the cell doing photosynthesis to avoid photorespiration.
What stages of the light-dependent reactions occur prior to the buildup of hydrogen ions in the thylakoid compartment? Select all that apply. Energy emitted by the electron transport chain triggered by PSII generates a hydrogen ion gradient across the thylakoid membrane. PSII pulls replacement electrons from water molecules, which then break apart into oxygen atoms and hydrogen ions. A photosystem II (PSII) absorbs light energy and releases an electron. Electrons released from PSII enter an electron transport chain in the thylakoid membrane. A flow of hydrogen ions causes ATP synthase to phosphorylate ATP.
Which of the following scenarios happens during the light-dependent reaction of photosynthesis? Oxygen gas is produced in the thylakoid lumen by the oxidation of water by photosystem I. Ferrodoxin and NADP+ reductase participates in the reduction of NADP+ to NADPH. Carbon dioxide enters the plants via stomata. Rubisco attaches three molecules of ribulose bisphosphate (RuBP) to one molecule of carbon dioxide.
In C4 plants, CO2 fixation occurs by adding electrons and a hydrogen ion when splitting water in bundle sheath cells. by joining CO2 to a C3 molecule and pumping it into bundle sheath cells. by splitting water only in bundle sheath cells. by oxidizing a C4 molecule with O2 derived from bundle sheath cells.
Draw and fully annoyed the cross sections of the photosynthetic leaf of a typical C3 and C4 leaf, and the functional regions /tissue / cells , which enable photosynthesis and the accompanying water end sugar transport systems . Indicate on the sketch how the gas exchange is facilitated by the anatomy of the leaf. Use the sketch to explain how the anatomy contributes to the functional suppression of photo respiration in of those leaf types
the rate of photosynthesis in plants decreases due to clogged stomata of the leaves
What are potential outcomes when a plant's stomata close in response to heat and water stress? Select all that apply. CO2 and O2 may compete for the active site of rubisco. Photorespiration is more likely to occur. Photosynthesis is more efficient. Gas exchange comes to a halt.
ATP is produced when protons (H+) flow down the gradient through the H+ channel/ATP synthase in the thylakoid membrane. A researcher discovers a drug that slows down the passage of protons through the H+ channel/ATP synthase. What is expected to happen if this drug is applied to the chloroplasts? The pH in the chloroplast stroma will increase, and less ATP will be produced. The pH in the chloroplast stroma will decrease, and less ATP will be produced. The pH in the chloroplast stroma will increase, and more ATP will be produced. The pH in the chloroplast stroma will decrease, and more ATP will be produced.
Which stage of the light-dependent reactions of photosynthesis is linked to photosystem I? ATP synthase phosphorylates ADP, forming ATP in the stroma. Hydrogen ions in the thylakoid compartment follow their gradient and flow through ATP synthases. Electrons from the photosystem move through an electron transport chain to form NADPH. The photosystem pulls replacement electrons from water molecules breaking the molecules into oxygen atoms and hydrogen ions.
It is possible that you recently discovered a new species of plant in the Amazon Rainforest. It is surprising that this plant can survive with limited sunlight in the diverse ecosystem of the Amazon. The plants unique quality has the potential to have a significant impact on both the realm of ecology and diverse sectors. Your primary research focus is now to investigate the efficiency of photosynthesis in this plant, specifically analyzing the structure of the chloroplasts and the distribution of pigments (chlorophyll and carotenoids) utilizing microscopy techniques. Which method is better for looking at the structure of chloroplasts in this plant, confocal scanning microscopy (CSM) or transmission electron microscopy (TEM). Consider the principles, advantages, and limitations of each method and align them with the goals of your research to justify your answer.
Which of the following statements is are TRUE? Ca pathway involves a single C02 fixation step. In CAM plants. stomata are open during day time. Chlorophyll pigments absorb maximum light in the green wavelength. Reaction center of PSI is P700
What special adaptation has evolved in CAM plants such as cacti and stonecrops that allows CO2 fixation and the Calvin cycle to occur in the same cell, but still occur separately? Briefly describe how this separation of events works.