Sign in to receive recommendations (Learn more) Lymph is a clear fluid that travels through your body's arteries, circulates through your tissues to cleanse them and keep them firm, and then drains away through the lymphatic system. Lymph nodes are the filters along the lymphatic system. Their job is to filter out and trap bacteria, viruses, cancer cells, and other unwanted substances, and to make sure they are safely eliminated from the body. Axillary lymph nodes Larger Version.
Share. By Regina Bailey. Definition: Mass of genetic material composed of DNA and proteins that condense to form chromosomes during eukaryotic cell division. Chromatin is located in the nucleus of a cell. During prophase of mitosis, chromatin fibers become coiled into chromosomes with each chromosome having two chromatids joined at a centromere.
Within the inner membrane is the stroma, a fluid matrix that contains all the enzymes neccessary for photosynthesis as well as the chloroplast genome, ribosomes, and RNA for self-replication. The stroma flows around a system of thylakoids: membraneous, flattened sacs. Thylakoid membranes are the site of photosynthesis.he presence of chlorophyll in chloroplasts gives plant cells their green color. Although they are found in the cells of all green plants, chloroplasts are most dense in the leaves, where they can absorb the maximum amount of light energy. A single plant cell may contain up to 50 chloroplasts.