Julius Von Sachs Experiment

Q. The evidence for the production of glucose in plants was given by

1. Julius von Sachs
2. Joseph Priestley
3. Cornelius van Niel
4. Theodore de Saussure

Q. Julius von Sachs observed that

1. When leaves are kept in darkness, they retained starch
2. When leaves are kept in darkness, they consumed starch
3. When leaves are exposed to sunlight, they produced starch
4. When leaves are exposed to sunlight, they consumed starch

Q. The postulations made by Julius Von Sachs were:

1. Production of glucose occurs in the green parts of the plant
2. Glucose is stored as starch
3. Chlorophyll is located in special bodies called chloroplasts
4. All of the above

Q. Why pea is green is it due to chlorophyll, if yes then why every fruit or vegetable is not green?