We know that lactose has a positive impact on the activity of the lac operon. Tryptophan’s presence has a ________________

#Question id: 31414

#Unit 4. Cell Communication and Cell Signaling

#Question id: 26503

#Unit 3. Fundamental Processes

#Question id: 10917

#Unit 6. System Physiology – Plant

Photosynthetic sugar molecules are transported via phloem to other parts of the plants. The following aspects are associated with sucrose unloading in phloem and its transport;

a) The presence of plasmodesmata is assumed to provide apoplastic transport. An absence of plasmodesmata between cells indicates an nonfunctional symplastic continuity

b) Phloem unloading and short-distance transport can occur via symplastic as well as apoplastic pathways

c) Both unloading and the short-distance pathway appear to be completely symplastic in some young eudicot leaves, such as sugar beet and tobacco

d) An apoplastic step is required in developing seeds because there are no symplastic connections between the maternal tissues and the tissues of the embryo

Which of the following combination is INCORRECT?

#Question id: 29460

#Unit 6. System Physiology – Plant

#Question id: 31388

#Unit 2. Cellular Organization