Cell structure Flashcards
What is cell differentiation?
the process where cells become specialised by producing different proteins
What is a cell membrane?
a partially permeable barrier that surrounds the cell (allows some substances to move in and out of cell)
What is a cell wall?
a fully permeable outer layer found in some cells.
What are cell walls made of in plants?
cellulose
What are cell walls made of in fungi?
chitin
What is a chloroplast?
an organelle that is the site of photosynthesis
What is cytoplasm?
contains dissolved nutrients and all of the organelles of the cell and the site of many metabolic reactions
What is a mitochondria?
site of aerobic respiration
What is a nucleus?
an organelle found only in eukaryotic cells and contains genetic material (DNA) and controls and the activities of the cell
What is a ribosome?
organelles that are the site of protein synthesis
What are stem cells?
undifferentiated cell that can divide rapidly to produce specialised cells
What is a vacuole?
found in plant cells, contains dissolved nutrients and supports the shape of the cell
