patrilineal descent. (noun) Tracing an individualâs descent through their fatherâs side of the family. Audio Pronunciation: (patÂ·riÂ·linÂ·eÂ·al deÂ·scent). Download Audio Pronunciation: patrilineal descent .mp3. Usage Notes: 1  Plural: patrilineal descents. 2  An agnate is blood relative in a patrilineal descent. Patrilateral refers to a personâs relations on their fatherâs side. 2  A type of unilineal descent. 3  In contrast to patrilineal descent, matrilineal descent is tracing an individualâs descent through their motherâs side of the family. 4  Also called: 5  agnatic. 6  agnatic descent. 7  agnation.
Bacteria and yeast. Anaerobic respiration takes place in yeast and some bacteria, producing ethanol and carbon dioxide. They have been used in the making of many foods such as bread, yoghurt and vinegar. You must know the structure and functions of a bacterial cell and yeast cell.Diagram of bacterial cell.naerobic respiration takes place in yeast and some bacteria, producing ethanol and carbon dioxide. They have been used in the making of many foods such as bread, yoghurt and vinegar.
All living things are made up of cells. The structures of different types of cells are related to their functions. Animal cells and plant cells have features in common, such as a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes.Plant and algal cells also have a cell wall, and often have chloroplasts and a permanent vacuole.Bacterial and yeast cells have different structures to animal and plant cells.nimal cells and plant cells have features in common, such as a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes.