cells And Flashcards
what does the cytoplasm do?
the cytoplasm is where chemical reactions take place. It has a jelly like structure
what is the nucleus
contains genetic material that controls the cells activities
what is the cell membrane
permeable structure
Controls what goes in and out of the cell
what does the mitochondria do ?
It contains the enzymes for respiration ,and is where most energy is released in respiration
what are Ribsomes
tiny structures where protein synthesis occurs
what are chloroplasts?
Contains green pigment chlorophyll which absorbs light energy forphotosynthesis
what does the cell well do?
strengthened and supports the plant
what does the permanent vacuole do?
filled with cell sap to keep the cell turgid
what is a prokaryotic cell?
a simple cell that does not have a nucleus
DNA is free in the cytoplasm
what are eukaryotic cells
a type of cell that has a nucleus
how is the sperm cell adapted to its function
packed with mitochondria so has more energy
tail enables the sperm to swim
how is the nerve cell adapted for its function
the cell has extensions and branches, so it can communicate with other nerve cells
covered with a fatty sheath, insulates the nerve cell, speeds up impulses
what are adaptations of muscle cells
well developed mitochondria to provide energy
how is the root hair cell adapted to its function
large surface area to provide contact with soil water
thin walls to not restrict the movement of water
how are xylem cells adapted for their function
there are no top or bottom walls, so there is a continuous flow of water
what is a stem cell?
a cell that has not undergone differentiation
