HBio1 -- Prokaryotes & Eukaryotes by David Smashey https://padlet.com/david_smashey/oj8okpanh1it I don't understand/would like more information about... en-us 2017-09-26 19:48:14 UTC 2017-09-29 13:41:50 UTC hello@padlet.com https://padlet.com/david_smashey/oj8okpanh1it/wish/191633446 When you die do all your cells die as well. 
Yes, unless they are collected and put into a growing environment. ]]> 2017-09-27 12:53:03 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/191633446 https://padlet.com/david_smashey/oj8okpanh1it/wish/191634622 Is bacteria a cell of is it made of cells?
They are single cells]]> 2017-09-27 12:55:59 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/191634622 Cells are the building blocks of everything. But there are things that build cells. Wouldn't there be like more than cells that are the building block of the universe..? https://padlet.com/david_smashey/oj8okpanh1it/wish/191636656 There definitely are smaller things than cells, but cells are the smallest thing that has all the char. of life. Interestingly, there are about the same number of atoms in a cell as there are cells in a human body (via thoughtco.com).

Then why do we call them the building blocks of the universe. that Just seems confusing.. ]]> 2017-09-27 13:00:28 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/191636656 How many cells do we have? https://padlet.com/david_smashey/oj8okpanh1it/wish/191639671 around 37 trillion]]> 2017-09-27 13:06:33 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/191639671 Science Stuff https://padlet.com/david_smashey/oj8okpanh1it/wish/191639826 what does membrane bound mean? i don't get it
I means it is made (or wrapped) by a membrane. Most of the stuff in the cell is similar to the cell membrane.]]> 2017-09-27 13:06:53 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/191639826 If cells are so small, how can we possibly cut them in half and if we do cut them in half what do they cut them with? https://padlet.com/david_smashey/oj8okpanh1it/wish/191639925 Cells are certainly small but they can be cut with a microtome
uses diamond knives
]]> 2017-09-27 13:07:05 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/191639925 what are the functions of a prokaryotic cell? https://padlet.com/david_smashey/oj8okpanh1it/wish/191642459 Since it is an entire single-celled organism, it has to perform all the functions of life - energy acquiring, movement, reproduction, homeostasis. Prokaryotes are very simple but very efficient.]]> 2017-09-27 13:12:05 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/191642459 Why do we use surface area and volume to find the size of the cell? https://padlet.com/david_smashey/oj8okpanh1it/wish/191643006 Usually cells are described by their length or diameter (depending on their shape). 
SA and volume are important in determining "what sizes they can be" and still survive. As cells get bigger, they have less surface area compared to their volume.]]> 2017-09-27 13:13:07 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/191643006 do all eukaryotic cells start off as prokaryotic cells? 20metschej https://padlet.com/david_smashey/oj8okpanh1it/wish/191650999 No. Prokaryotes divide into two more prokaryotes while eukaryotic cells divide into more eukaryotic cells.]]> 2017-09-27 13:25:53 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/191650999 Why do we have to find the volume/surface area of cells? https://padlet.com/david_smashey/oj8okpanh1it/wish/191674248 There are certain surface area to volume ratios that "work" but when the ratio gets too low the cell can't survive.]]> 2017-09-27 14:05:40 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/191674248 What exactly is an organelle? https://padlet.com/david_smashey/oj8okpanh1it/wish/192428254 An organelle (think of it as a cell’s internal organ) is a membrane bound structure found within a cell. Just like cells have membranes to hold everything in, these mini-organs are also bound in a double layer of phospholipids to insulate their little compartments within the larger cells. You can think of organelles as smaller rooms within the factory, with specialized conditions to help these rooms carry out their specific task (like a break room stocked with goodies or a research room with cool gadgets and a special air filter).[from Khan academy]]]> 2017-09-29 13:00:24 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192428254 Does the smooth endoplasmic reticulum not being continuous with the nuclear envelope affect its function? https://padlet.com/david_smashey/oj8okpanh1it/wish/192429034 I don't think so -- since it's not receiving messenger RNA from the nucleus like the rough ER is (to make proteins), it doesn't need to be as close or in as intimate contact.]]> 2017-09-29 13:01:55 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192429034 What is the primary product of the cell and why is it so important? https://padlet.com/david_smashey/oj8okpanh1it/wish/192429835 Read the "What is a cell" section again.]]> 2017-09-29 13:03:19 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192429835 What is the primary function of a cell? https://padlet.com/david_smashey/oj8okpanh1it/wish/192429867 Read the "What is a cell" section again.]]> 2017-09-29 13:03:23 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192429867 What does the animal cell look like again? https://padlet.com/david_smashey/oj8okpanh1it/wish/192431886 Overview of animal and plant cells | Biology | Khan Academy
https://www.youtube.com/watch?v=24YMQ9GvLss]]> 2017-09-29 13:06:54 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192431886 What is the purpose of a nuclear pore inside the Endoplasmic Reticulum, if the Endoplasmic Reticulum is sealed off from the cytoplasm, and is already connected to the nucleus?(As shown below) https://padlet.com/david_smashey/oj8okpanh1it/wish/192432005 Some of pores lead into the ER, but some pores communicate directly with the cytoplasm (everything leaving the nucleus doesn't have to pass through the ER).
The pores leading to the ER helps transfer certain things in and out of the nucleus efficiently.]]> 2017-09-29 13:07:08 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192432005 Why does it always seem like the names for cells always come from Greek roots? https://padlet.com/david_smashey/oj8okpanh1it/wish/192432081 Most things in science were named in the 18th and 19th centuries when educated people all studied latin and greek as schoolchildren. It was a second language to them and was very natural to use when they discovered things.]]> 2017-09-29 13:07:15 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192432081 why are they so many different parts involved with cells its all too confusing. https://padlet.com/david_smashey/oj8okpanh1it/wish/192432325 You have to have lots of different kinds of specialized (confusing) parts to make something as specialized and confusing as us.]]> 2017-09-29 13:07:41 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192432325 In every cell are there both a rough ER and a smooth ER, or is it one or the other https://padlet.com/david_smashey/oj8okpanh1it/wish/192432391 Every (or nearly every) cell has both but some cells have more or less of each of them depending on the cell's function.]]> 2017-09-29 13:07:47 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192432391 How do ribosomes fuse with the rough ER. https://padlet.com/david_smashey/oj8okpanh1it/wish/192433209 The two subunits of a ribosome snap together over the starting end of the messenger RNA. Then, if the protein (polypeptide) to be made is for export out of the cell, the ribosome docks with the ER and makes the polypeptide directly into the lumen of the RER.]]> 2017-09-29 13:09:31 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192433209 Why do we have to isolate the DNA in a eukaryotic cell? https://padlet.com/david_smashey/oj8okpanh1it/wish/192434406 Read "Nucleus" in "Cellular organelles and structure."]]> 2017-09-29 13:12:13 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192434406 When your cells die some of your DNA dies too then right?? 20metschej https://padlet.com/david_smashey/oj8okpanh1it/wish/192434559 It starts to break down, but pieces of it remain intact for a long time (depending on conditions). ]]> 2017-09-29 13:12:37 UTC https://padlet.com/david_smashey/oj8okpanh1it/wish/192434559