science
Grade-7
Easy
Question
Hint:
The cells require oxygen for food breakdown to produce energy
- Oxygen is required in cellular respiration in the electron transport chain
- It serves as final electron acceptor
- It aids the passage of electrons down the chain , resulting in formation of ATP
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Pyruvate is transformed into acetyl CoA; a two-carbon molecule is linked to Coenzyme A. Analyze the steps in which such reaction takes place.
Pyruvate is transformed into acetyl CoA; a two-carbon molecule is linked to Coenzyme A. Analyze the steps in which such reaction takes place.
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Pyruvate enters the Krebs cycle when oxygen is present. Where does this happen in the eukaryotic cell?
Pyruvate enters the Krebs cycle when oxygen is present. Where does this happen in the eukaryotic cell?
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Two molecules of CO2, three molecules of NADH, one molecule of FADH2, and one molecule of GTP are the Krebs cycle's ultimate outputs. State true or false.
Two molecules of CO2, three molecules of NADH, one molecule of FADH2, and one molecule of GTP are the Krebs cycle's ultimate outputs. State true or false.
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Observe the image and analyze the portion asked in the image that is produced in the Krebs cycle.
Observe the image and analyze the portion asked in the image that is produced in the Krebs cycle.
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Cellular respiration utilizes glucose and oxygen and produces_________.
Cellular respiration utilizes glucose and oxygen and produces_________.
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Match the following.
| a. Glycolysis | Acetyl-CoA combines with a four-carbon moleculecalled OAA (oxaloacetate) |
| b. Transformation of pyruvate | 2. Enzymes split a molecule of glucose into two molecules of pyruvate |
| c. Beginning of Citric acid Cycle | Formation of acetyl CoA |
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| a. Glycolysis | Acetyl-CoA combines with a four-carbon moleculecalled OAA (oxaloacetate) |
| b. Transformation of pyruvate | 2. Enzymes split a molecule of glucose into two molecules of pyruvate |
| c. Beginning of Citric acid Cycle | Formation of acetyl CoA |
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Suggest one word for each of the following statements.
a). Identify the stage in which energy from NADH and FADH2, which result from the previous stages of cellular respiration, is used to create ATP.
b). When Acetyl CoA and a four-carbon molecule join, a series of chemical processes known as ___________ takes place.
c). The process by which glucose is broken down to provide energy is known as ____________.
d). In mitochondria, _________ will be transformed into a two-carbon acetyl group.
Suggest one word for each of the following statements.
a). Identify the stage in which energy from NADH and FADH2, which result from the previous stages of cellular respiration, is used to create ATP.
b). When Acetyl CoA and a four-carbon molecule join, a series of chemical processes known as ___________ takes place.
c). The process by which glucose is broken down to provide energy is known as ____________.
d). In mitochondria, _________ will be transformed into a two-carbon acetyl group.
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Identify the stage of cellular respiration, which takes place on the inner membrane of mitochondria.
Identify the stage of cellular respiration, which takes place on the inner membrane of mitochondria.
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During the process of _________, the electrons extracted from food move down the electron transport chain in the inner membrane of the mitochondrion.
During the process of _________, the electrons extracted from food move down the electron transport chain in the inner membrane of the mitochondrion.
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______________ serves the straightforward objective of giving cells the energy they require to function.
______________ serves the straightforward objective of giving cells the energy they require to function.
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During ________________, a 6-carbon molecule is broken down into two 3-carbon pyruvate molecules.
During ________________, a 6-carbon molecule is broken down into two 3-carbon pyruvate molecules.
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Choose the odd one out.
Choose the odd one out.
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