Question

part i: the chemical processes
cellular respiration
label the cellular respiration 3.2

1. mitochondria, cytoplasm, etc,

krebs and glycolysis

1. what organisms undergo cellular respiration? almost all
2. what will happen when oxygen is not present? fermentation will occur
3. when does our body use lactic acid fermentation? from working out too hard
4. why do you not get drunk eating bread? the baking process cause alcohol to evaporate
5. what organism is mostly responsible for alcoholic fermentation? yeast
6. what step happens regardless if there is oxygen present? glycolysis

photosynthesis

1. label the diagram below with: co₂, o₂, water, glucose, sunlight, atp/nadph, adp/nadp+,

stroma, thylakoid, ld (light dependent reaction) and li (light independent reaction)

Explanation:

The problem involves questions about cellular respiration and photosynthesis, which are topics in Biology (a subfield of Natural Science). For the questions:

1. Organisms that undergo cellular respiration: Almost all living organisms (plants, animals, fungi, bacteria) as they need to produce ATP for energy.
2. When oxygen is not present: Fermentation (anaerobic respiration) occurs, producing less ATP than aerobic respiration.
3. Body uses lactic acid fermentation: During intense exercise when oxygen supply is insufficient for aerobic respiration, muscles produce lactic acid.
4. Not get drunk eating bread: The baking process (high temperature) causes the alcohol produced by yeast during fermentation to evaporate.
5. Organism for alcoholic fermentation: Yeast (and some bacteria) convert sugars to alcohol and CO₂.
6. Step regardless of oxygen: Glycolysis, as it is the first step of both aerobic and anaerobic respiration, occurring in the cytoplasm.

For the diagram labeling (cellular respiration):

• Mitochondria: Site of aerobic respiration (Krebs cycle, ETC).
• Cytoplasm: Site of glycolysis.
• ATP: Energy currency produced.
• Krebs cycle: Occurs in mitochondrial matrix, produces NADH, FADH₂, CO₂.
• ETC (Electron Transport Chain): Occurs in inner mitochondrial membrane, produces most ATP.

For photosynthesis diagram labeling:

• Sunlight: Energy source for light - dependent reactions.
• Water: Enters thylakoid, split to release O₂, electrons, and H⁺.
• CO₂: Enters stroma, used in Light Independent Reactions (Calvin cycle) to make glucose.
• O₂: By - product of light - dependent reactions, released.
• Glucose: Product of Light Independent Reactions.
• ATP/NADPH: Produced in light - dependent reactions, used in Light Independent Reactions.
• ADP/NADP⁺: Recycled in light - dependent reactions.
• Stroma: Fluid - filled space in chloroplast, site of Light Independent Reactions.
• Thylakoid: Membrane - bound structure, site of light - dependent reactions.
• LD (Light Dependent Reaction): Occurs in thylakoid, uses light, water to produce ATP, NADPH, O₂.
• LI (Light Independent Reaction): Occurs in stroma, uses CO₂, ATP, NADPH to produce glucose.

Answer:

Cellular Respiration Questions

1. Almost all living organisms (plants, animals, fungi, bacteria)
2. Fermentation will occur
3. During intense exercise (when oxygen is low)
4. Baking process evaporates alcohol
5. Yeast
6. Glycolysis

Cellular Respiration Diagram Labeling (General Guidance)

• Mitochondria: Aerobic respiration site
• Cytoplasm: Glycolysis site
• ATP: Energy produced
• Krebs cycle: Mitochondrial matrix, produces CO₂, NADH, FADH₂
• ETC: Inner mitochondrial membrane, produces most ATP

Photosynthesis Diagram Labeling (General Guidance)

• Sunlight: Energy for LD
• Water: Enters thylakoid, split in LD
• CO₂: Enters stroma, used in LI
• O₂: By - product of LD, released
• Glucose: Product of LI
• ATP/NADPH: Produced in LD, used in LI
• ADP/NADP⁺: Recycled in LD
• Stroma: Site of LI
• Thylakoid: Site of LD
• LD: Thylakoid, uses light, water
• LI: Stroma, uses CO₂, ATP, NADPH