Question

1. phase 1: the cell takes in ___________ gas from the atmosphere. this step is called carbon ______.
2. phase 2: atp and nadph are used to ___________________ the carbon molecules. this leaves left over adp and nadp+.
3. phase 3: regeneration occurs to reform rubp.

note: the calvin cycle must repeat six times to make one molecule of glucose (c₆h₁₂o₆).

1. look back at your photosynthesis equation. what reactants of the main equation went into the light independent reaction? (circle all that apply!)

carbon dioxide water sunlight glucose oxygen atp nadph

click the “next” or right - side arrow to move to the next section.

cellular respiration the balanced equation is ________ + __ _ + _ + ___
cellular respiration is a set of reactions which occurs in three steps. step 1: _________________, step 2: __________________________, and step 3: ____________________________
step 1: glycolysis

1. where in the cell does glycolysis occur? ______________________________
2. glycolysis can occur with or without oxygen. true false
3. describe in simple terms what happens during glycolysis. answer in 1 - 2 complete sentences.

1. what is the result of glycolysis?

______________________________
2: krebs cycle
where in the cell does the krebs cycle occur (be specific)?
______________________________
krebs cycle can occur with or without oxygen. true false
what are the end products of the krebs cycle (per 1 sugar molecule) and how many of each?
___ atp # carbon dioxide # nadh #__ fadh₂

electron transport chain
where in the cell does the etc occur (be specific)?
______________________________
etc can occur with or without oxygen. true false

Explanation:

Question 12: Where in the cell does glycolysis occur?

Glycolysis is the first step of cellular respiration. It occurs in the cytoplasm of the cell, as it does not require organelles like mitochondria and the enzymes for glycolysis are present in the cytosol.

Glycolysis is an anaerobic process in the sense that it does not require oxygen directly. It can occur in both aerobic (with oxygen, as part of the full cellular respiration process) and anaerobic (without oxygen, like in fermentation) conditions. So the statement is true.

Glycolysis breaks down one molecule of glucose (a 6 - carbon sugar) into two molecules of pyruvate (a 3 - carbon compound). During this process, some energy is released and captured as ATP, and electron carriers (NADH) are also produced.

Answer:

Cytoplasm (or Cytosol)

Question 13: Glycolysis can occur with or without oxygen. (TRUE/FALSE)