BTEC Applied Science: Unit 20 Learning aim C
A tissue is defined as - ANSWER A group of similar cells and their surrounding
materials performing specific functions
A Eukaryotic cell is - ANSWER a cell with membrane bound organelles
Mitochondria - ANSWER Powerhouse of the cell, organelle that is the site of ATP
(energy) production
Ribosomes - ANSWER site of protein synthesis
Nucleus - ANSWER A part of the cell containing DNA and RNA and responsible for
growth and reproduction
Golgi apparatus - ANSWER A system of membranes that modifies and packages
proteins for export by the cell
centrioles - ANSWER Cell organelle that aids in cell division in animal cells only
cytoplasm - ANSWER A jellylike fluid inside the cell in which the organelles are
suspended
plasma membrane - ANSWER A selectively-permeable phospholipid bilayer forming
the boundary of the cells
nucleolus - ANSWER Found inside the nucleus and produces ribosomes
Rough ER - ANSWER A network of interconnected membranous sacs in a
eukaryotic cell's cytoplasm; covered with ribosomes that make membrane proteins
and secretory proteins.
Smooth ER - ANSWER Makes lipids
vacuole - ANSWER Cell organelle that stores materials such as water, salts,
proteins, and carbohydrates
Tonoplast - ANSWER A membrane that encloses the central vacuole in a plant cell,
separating the cytosol from the cell sap
amyloplast - ANSWER Unpigmented plasids that store starch grains, abundent in
cells of stems, tubers, and seeds
plasmodesmata - ANSWER An open channel in the cell wall of plants through which
strands of cytosol connect from adjacent cells
pits - ANSWER openings in the lateral walls of xylem cells allowing water and
nutrients to leak into surrounding tissues.
A tissue is defined as - ANSWER A group of similar cells and their surrounding
materials performing specific functions
A Eukaryotic cell is - ANSWER a cell with membrane bound organelles
Mitochondria - ANSWER Powerhouse of the cell, organelle that is the site of ATP
(energy) production
Ribosomes - ANSWER site of protein synthesis
Nucleus - ANSWER A part of the cell containing DNA and RNA and responsible for
growth and reproduction
Golgi apparatus - ANSWER A system of membranes that modifies and packages
proteins for export by the cell
centrioles - ANSWER Cell organelle that aids in cell division in animal cells only
cytoplasm - ANSWER A jellylike fluid inside the cell in which the organelles are
suspended
plasma membrane - ANSWER A selectively-permeable phospholipid bilayer forming
the boundary of the cells
nucleolus - ANSWER Found inside the nucleus and produces ribosomes
Rough ER - ANSWER A network of interconnected membranous sacs in a
eukaryotic cell's cytoplasm; covered with ribosomes that make membrane proteins
and secretory proteins.
Smooth ER - ANSWER Makes lipids
vacuole - ANSWER Cell organelle that stores materials such as water, salts,
proteins, and carbohydrates
Tonoplast - ANSWER A membrane that encloses the central vacuole in a plant cell,
separating the cytosol from the cell sap
amyloplast - ANSWER Unpigmented plasids that store starch grains, abundent in
cells of stems, tubers, and seeds
plasmodesmata - ANSWER An open channel in the cell wall of plants through which
strands of cytosol connect from adjacent cells
pits - ANSWER openings in the lateral walls of xylem cells allowing water and
nutrients to leak into surrounding tissues.
