Photosynthesis & Cellular Respiration

Why is glycolosis considered to be one fo the first metabolic pathways to have evloved?

• It does not involve organelles or specialized structures, doesn't require oxygen and is present in most organisms

• It requires the presence of membrane enclosed organelles found only in eukaryotic cells

• It is found in eukaryotic cells but not in prokaryotic cells

• It produces much more ATP than does oxidative phosphorylation

• It relies on chemiosmosis which is a metabolic mechanism present only in the first prokaryotic cells

Tags

NGSS.HS-LS4-2

Inside an active mitochondrion, most electrons follow which pathway?

• Krebs cycle
• Photosynthesis
• Lactic acid fermentation
• Electron transport chain

Tags

NGSS.HS-LS1-7

What pathway do the electrons follow?

• glycolysis --> NADH --> Oxidative Phosphorylation --> ATP --> Oxygen

• Citric Acid Cycle --> NADH --> Electron Transport Chain --> Oxygen

• Citric Acid Cycle --> FADH2 --> Elceton Transport Chain --> ATP

• Pyruvate --> Citric Acid Cycle --> ATP --> NADH --> Oxygen

A lethargic kitten is brought to the animal hospital for tests she is discovered to have a mitochondrial defect, can use Acetyl CoA in respiration, and her cells generally make more lactic acid than normal. Which of the following is the best explanation for this kittens condition?

• The kitten has a mitochondrial defect affecting anaerobic respiration.

• The kitten has a bacterial infection affecting her energy levels.
• The kitten is suffering from a viral illness that increases aerobic respiration.
• The kitten has a mitochondrial defect affecting aerobic respiration.

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which of the following choices correctly lines up the terms with the numbers in the diagram above (numbers on the opposite ends of the same connector can represent the same molecule)

• 3= Animal Cell: 5=Sunlight; 11=CO2; 9 = Sugar

• 6= CO2; 7= O2: 11 = NADH: 8= Sugar

• 5= O2; 6 = H20, 8 = Sugar; 10 = CO2

• none are correct

Tags

NGSS.HS-LS1-5

NGSS.HS-LS1-7

A carrot plant grows rapidly in a sunny field in penobscot county. How do the cells of the growing carrot ) which is not exposed to light) obtain energy to do cellular work such as active transport across its membrane?

• The cells rely on anaerobic fermentation for energy production.
• The cells obtain energy through cellular respiration by breaking down stored carbohydrates.
• The cells absorb energy directly from the soil nutrients.
• The cells obtain energy through photosynthesis using sunlight.

Tags

NGSS.HS-LS1-7

When oxygen is released as a result of photosynthesis, it is a direct by-product of...

• the splitting of water molecules during photosynthesis
• the production of glucose during respiration
• the conversion of sunlight into energy
• the absorption of carbon dioxide

What are the products of the light reactions that are subsequently used by the Calvin Cycle

• NADH and Glucose
• FADH2 and CO2
• ATP and NADPH
• Glucose and Oxygen

Tags

NGSS.HS-LS1-5

In the mitochondria, during chemiosmosis protons (h+) diffuse from the intermembrane space down their conentration gradient into the matric, whereas during cehmioosmosis in the chloroplasts, protons (H+) diffuse from

• the stroma to the photosystem II.

• the thylakoid space to the stroma

• photosystem I to the electron transport chain

• the matrix to the intermembrane space

Tags

NGSS.HS-LS1-7

Which molecule acts as the final electron acceptor in the electron transport chain during aerobic respiration?

• NAD+

• Oxygen

• Glucose

• Carbon dioxide

Tags

NGSS.HS-LS1-7