cell biology Flashcards
state three functions of membrane protein
1.they function as receptors for transmitter
2.protein molecules have pores for the movement of water soluble substances across the cell membrane
3.carrier proteins transport large metabolic substances like glucose
glucose cannot easily go accross the membrane so it requires active transport
give an importance of the local homeostatic response
they provide individual areas of the body mechanism for self regulation
give two interactions that occur between the protein molecules and phospholipid using the fluid mosaic model
give two functions of membrane carbohydrates
1.some are receptors for binding hormones
2.some take part in immune reactions
name three Ions channels
1.voltage -gated channels
2.mechanically-gated channels
3.ligand-gated channels
what is the function of proteoglycons
they provide sponginess to the membrane and they function in cell to cell recognition
name the movement that are observed in the plasma membrane
1.flip-flop movement
2.lateral diffusion
3.rotational
4.flexion
name three lipid membranes
1.phospholipids
2.cholesterol
3.glycolipids
where does electron transport occur
the mitochondria
where does DNA transcription occur
the nucleus
where does light independent reaction occur
in the stroma of chloroplast
what characteristics do all cells have in common
what are nucleic acids
it is an organic substances present in living cells such as DNA and RNA molecule that consist of many Nucleotide linked in a long chain
what are Ionophores
they are molecules with uncharged exterior
what is the monomer found in Deoxyribonucleic Acid
Deoxyribose
phosphate group
nitrogen base
