Chapter 1.8 Respiration Flashcards Preview

FULL COURSE National 5 Biology > Chapter 1.8 Respiration > Flashcards

Flashcards in Chapter 1.8 Respiration Deck (11):
1

The chemical energy stored in

glucose is released by most cells

2

The energy released from respiration of glucose is used to

regenerate ATP from ADP and phosphate.

3

The chemical energy stored in ATP can be released by

breaking it down to ADP and phosphate

4

Energy can be used for cellular activities including

muscle cell contraction, cell division, protein synthesis and transmission of nerve impulses

5

In respiration, glucose is broken down to produce

pyruvate in the cytoplasm of cells

6

When oxygen is not available

pyruvate enters reaction pathways known as fermentation

7

If no oxygen is available, pyruvate is converted to

lactic acid in animal cells and to ethanol and carbon dioxide in plant and yeast cells.

8

Breakdown of each glucose molecule via the fermentation pathway yields

two molecules of ATP

9

fermentation occurs in the

cytoplasm

10

If oxygen is available, aerobic respiration occurs and pyruvate is further broken down into

Carbon dioxide and water within the mitochondria of cells.

11

The breakdown of each glucose molecule via pyruvate to carbon dioxide and water in the presence of oxygen yields

38 molecules of ATP.