Question

4. What sort of nutrients and minerals are transported through the vascular system of the plant? 5. What is a source? What is a sink? Plant Transpiration 6. Explain cohesion and adhesion in relation to water molecules and the xylem. 7. What process is the main force for the movement of fluids through xylem? Explain the process.

4, 5, 6, and 7.

Answer 1

Answer 4) there are two parts of the plants that help in the circulation of nutrients across them, the two parts of the vascular system of the plants include the following :

1) xylem : The xylem mainly transports all the nutrients which are soluble in the water while

2) phloem : transports mainly protiens and sugars.

Answer5) Sinks are those areas or those parts of the plant that require food or some kind of nutrition. for eg the food or organic compounds of the plants like sugars are mainly stored in the stem part of the plant therefore when there is a shortage of these reserves in the plants ', those areas act like sinks and the areas from where these materials come via the phloem are known as the sources.

Answer 6) Adhesion and Cohesion of water is a common phenomenon that occurs in the plant.'

adhesion : happens when there is an attraction between the water molecule and the xylem, therefore whenever adhesion happens in a plants it actually aids in the the upward movement of water in the xylem

cohesion on the other hand means when the water molecules stick to one another.. this makes the water molecules (many of it ) act as a single unit/ single chain which also helps the xylem in the smooth pull of water,

Answer 7) root pressure is the process which actually acts as the main mechanism in the plant which makes the upward pull of water into the xylem.'

this root pressure gets build up in the plant near to the root due to the osmotic changes that happen there,

the root pressures could be built up in many other ways like whenever the environment is very hot (usually during the day time ) when the stomatas of the plants open, there is a deficiency of water above and greater concentration of water below in the roots which helps in the building up of the pressure that leads to the water uptake by the xylem'.

evaporation aids in the building up of the root pressures,'

i hope i was able to help you with the answers:)