Respiration in Plants — Flashcards
ICSE · Class 9 · Biology
35 flashcards for Respiration in Plants (ICSE Class 9 Biology) to test yourself on key terms and facts. Sample: "What is respiration in plants?"
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What is respiration in plants?
Answer
Respiration is a catabolic process of releasing energy from simple sugar glucose for carrying out life processes. In plants, this energy is needed for activities such as growth, transport, and buildin…
What is the overall equation for respiration?
Answer
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy. Here, glucose reacts with oxygen to release carbon dioxide, water, and energy.
What are glycolysis and Krebs cycle?
Answer
Glycolysis is the first major phase of respiration and it converts glucose to pyruvate in the cytoplasm. Krebs cycle is the second major phase and it converts pyruvate to carbon dioxide, water, and AT…
Where does glycolysis occur?
Answer
Glycolysis occurs in the cytoplasm. It is the first major step in respiration and begins the breakdown of glucose.
Where does the Krebs cycle occur?
Answer
The Krebs cycle occurs in the mitochondria. It is the second major phase of respiration and is linked with ATP formation and release of carbon dioxide.
Why is ATP called the energy currency of the cell?
Answer
ATP is the immediate source of energy inside living cells. When energy is needed, ATP changes to ADP and releases energy for cell activities, so it acts like the cell's usable energy form.
What happens when ATP is used?
Answer
When energy in the form of ATP is used, ATP converts to ADP. When more energy becomes available from glucose breakdown, ADP is converted back to ATP.
How much ATP is released in complete aerobic respiration of one mole of glucose?
Answer
One mole of glucose on complete oxidation yields 38 molecules of ATP.
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