How do B cells know which antibodies to make? B cells distinguish antigens through proteins, called antigen receptors, found on their surfaces. An antigen receptor is basically an antibody protein that is not secreted but is anchored to the B-cell membrane. How do B cells recognize a pathogen How do they respond to it? Antigens…
Category: Useful tips
Why did Nokia 9 PureView fail?
Why did Nokia 9 PureView fail? HMD Global said it is unable to update the Nokia 9 PureView with Android 11 because “[i]ncompatibilities between the camera and the software would have led to a compromised experience that does not meet our high standards,“ according to its statement. When did the Nokia 9 come out? 26…
How many volts is a 5 AA battery?
How many volts is a 5 AA battery? The basic fact to remember before you check the battery is that the proper voltage for AA/AAA alkaline battery is 1.5V and the proper voltage for AA rechargeable battery is 1.25 Volts. What is the total voltage of a series circuit using 5 double A batteries? Depends…
How many people use Excel vs Google Sheets?
How many people use Excel vs Google Sheets? There are 750 million to 2 billion people in the world who use either Google Sheets or Excel. Google Suite, which includes Google Sheets is used by approximately 2 billion users every month, while Microsoft Excel has an estimated 750 million to 1.2 billion monthly users globally….
How much does it cost to start a space exploration company?
How much does it cost to start a space exploration company? Startup Costs Min Startup Costs Max Startup Costs Inventory Expenses $0 $5,000 Business Formation Fees $600 $5,400 Office Space Expenses $0 $7,000 Vehicle Expenses $2 $10,004 Is it possible to start a space company? Antrix is a company owned by the Government of India…
What is meant by algebraic structure?
What is meant by algebraic structure? In mathematics, an algebraic structure consists of a nonempty set A (called the underlying set, carrier set or domain), a collection of operations on A of finite arity (typically binary operations), and a finite set of identities, known as axioms, that these operations must satisfy. What are properties of…
Is the military oath for life?
Is the military oath for life? Our oaths never expire. Technically it expires once our enlistments/commissions are up. BUT, as Capt Seid Waddell says, our Oath never expires. It is our duty to defend the Constitution against all enemies, foreign and DOMESTIC. What do soldiers say when they swear in? I, (name), do solemnly swear…
What to know before going to Niagara Falls Canada?
What to know before going to Niagara Falls Canada? 8 Tips to visit Niagara Falls Plan to visit both sides of Niagara Falls. Book at least two days to visit Niagara Falls. Stay in a hotel with a view of Niagara Falls. Leave everything that can’t get wet in the car/hotel. Take the helicopter tour…
Why does glucose need to be phosphorylated before glycolysis can occur?
Why does glucose need to be phosphorylated before glycolysis can occur? Phosphorylation allows cells to accumulate sugars because the phosphate group prevents the molecules from diffusing back across their transporter. Phosphorylation of glucose is a key reaction in sugar metabolism because many sugars are first converted to glucose before they are metabolized further. What effect…
Is Raleigh a good city for singles?
Is Raleigh a good city for singles? If you’re single in one North Carolina city, you may not be for long. That’s because the Raleigh metro area is among the top places in the country for daters, survey results released earlier this month show. The website analyzed responses from more than 11,000 who were single,…