Palisade cells are found in the mesophyll of a leaf and their main function is the absorption of light so that photosynthesis can take place. The palisade mesophyll consists of chloroplasts with chlorophyll that absorb the light energy.Know More
The mesophyll layer is made up of the palisade cell and spongy parts. The spongy mesophyll consists of air spaces that aid in the diffusion of gases. The mesophyll region lies directly below the cuticle and the upper epidermis of the leaf.
Some other structures found in a leaf are the lower epidermis, stomata, vascular bundle and guard cells. Each structure plays an important role. For example, guard cells surround stomata and regulate their opening and closing. Stomata are tiny pores that permit gases and other materials to enter into and move out of the leaf. Stomata are found on the leaf's epidermis.Learn more about Molecular Biology & DNA
Plant cell vacuoles serve the same vital storage functions for nutrients, water and wastes as those in animal cells but are much larger because they also provide structural stiffness in combination with the plant's cell walls. This is why water-starved plants droop; their cells have essentially deflated. If a living but wilted plant once again receives sufficient water, it regains its former stiffness as the vacuoles refill.Full Answer >
Cell transport is the movement of items into and out of the cell through the cell's membrane. This movement is done with a variety of proteins to facilitate the action.Full Answer >
A cell utilizes mRNA during transcription and translation. These two processes allow the body to translate DNA into RNA in order to control protein expression and gene expression.Full Answer >
DNA is found in the nucleus of animal cells. The DNA compounds are packaged into chromosomes inside the nucleus. Each chromosome contains a single molecule of DNA that can be replicated during the processes of transcription and translation.Full Answer >