cell biology part 2

-control center of activities

-DNA is duplicated within

-mRNA moves in and out of the nucleus during synthesis

-houses DNA (chromosomes)

• produces ribosomes
• *they move out of nucleus via nuclear pores to rough ER

-site of protein synthesis

- exists attached to the rough ER or floating freely in the cytoplasm

-consists of 70 proteins and 4 strands of RNA

-an extensive network of membranes that moves proteins and other substances through the cell

-an extension of nuclear membrane

has various functions including making lipids and breaking down toxic substances

-proteins that are synthesized by the ribosomes cross through the ER then transported via vesicles to golgi

-lylosomes, peroxisomes, amd secretory vesicles are packaged here

are small membrane bound sacs that are used by the cell to transport proteins inside the cell or to the cells surface for release

membrane sacks containing enzymes used for metabolism

-small organelles that contain the enzymes necessary for intracellular digestion

-suicide sacks

-power center of the cell

- they are descendants of primitive prokaryotes

- contain DNA and ribosomes

it contains enzymes which combine sugars with oxygen to produce ATP

- Nucleus, cytosol, cytoplasm, cytoskeleton, golgi, mitochondria, nucleolus, ribosomes, ER(2), and vesicles

lylosomes and centrioles

cell wall, plastids, and a large central vacuole

know the parts!

-consists of a mixture of proteins and carbs, cellulose and lignin

-provides support. Barrier

-contains 90-98 percent of water

-place for storage of nutrients and waste

-plays roles in intracellular digestion and release of cellular waste products

-plants absorb the red and blue wavelengths.

-plants scatter green light giving them their appearence

-phtosynthesis occurs in leaf

-light dependent stage and light independent stage

water is split and the electrons stripped then boosted in energy by the energy of the sun. Then used to reduce NADP+

electrons are carried by NADPH and used to convert CO2 into sugar