cell Flashcards
cell structure/ principles of organisation/ animal tissues, organ and systems and plant tissues/ transport in cell
nucleus
contains genetic material; the control center of the cell.
lysosomes
involved in cleanup in the cell; digest and recycles materials in the cell
mitochondria
where most energy is released in respiration
cytoplasm
where most of the chemical reaction take place
cell wall
strength of the cell
chloroplast
absorbs light energy to make food
cell membrane
controls the passage of substance into and out of the cell
tissue
group of cells with similar structure and function
organs
they are made of tissues; one organ may contains several tissues
organ system
are groups of organs that perform a particular function
muscular tissue
can contract to bring about movement
glandular tissue
can produce substances such as enzymes and hormones
epithelial tissue
covers some parts of the body
animal organ in stomach- muscular tissue
to allow contents to move through the digestive system
animal organ in stomach- glandular tissue
to produce juices
animal organ in stomach- epithelial tissue
to cover the outside and inside of the stomach
digestive system
a system in which humans and other mammals exchange substances with the environment
glands
produce digestive juices ( pancreas, salivary gland)
stomach
where digestion occurs
liver
where bile is produced
small intestine
where the absorption of soluble food occurs
large intestine
where water is absorbed from the undigested food
plant tissue- epidermal tissue
covers the plant
plant tissue- palisade mesophyll
carries out photosynthesis
plant tissue- spongy mesophyll
which has air space to facilitate diffusion of gases
plant tissue- xylem and phloem
which transport substances around the plant
diffusion
the net movement of particles of a gas or a solute from an area of high concentration to an area of low concentration.
dissolved substances
it can move into and out of cells by diffusion
osmosis
is a type of diffusion specifically for water molecules moving across a semi-permeable membrane.
active transport
movement of substances against a concentration gradient and/ or across a cell membrane using energy
