Questions
Drag the correct description under each cell structure to identify the role it plays in the plant cell

Part B Plant organelle functions

Drag the correct description under each cell structure to identify the role it plays in the plant cell.

In: Biology

Comparing plant cells and animal cells Plant cells and animal cells share many of the same structures, but each type of cell also has unique structures.

Part A - Comparing plant cells and animal cells

Plant cells and animal cells share many of the same structures, but each type of cell also has unique structures. In this activity, you will indicate which cell structures are found only in plant cells, only in animal cells, or in both plant and animal cells.

Drag each cell structure to the appropriate bin. If a structure is found in both plant cells and animal cells, drag it to the "both" bin.

In: Biology

Which of the following statements about the nuclear envelope is FALSE?

Which of the following statements about the nuclear envelope is FALSE?

  • A. It is composed of two membranes (a double membrane)
  • B. Unlike other membranes in the cell, it primarily consists of complex polysacchrides such as cellulose
  • C. It is supported by a cytoskeletal network known as nuclear lamina
  • D. It contains pores for the passage of large molecules
  • E. It contains the chromosomal DNA of eukaryotic cells

 

In: Biology

Which molecules do not normally cross the nuclear membrane?

Which molecules do not normally cross the nuclear memebrane? Nucleotide Triphosphates proteins mRNA DNA

 

In: Biology

Refer to Table 29-5. If the bank faces a reserve requirement of 6 percent, then the bank

8. Refer to Table 29-5. If the bank faces a reserve requirement of 6 percent, then the bank

  • a. is in a position to make a new loan of $12,000.
  • b is in a position to make a new loan of $18,000
  • c. has excess reserves of $12,000.
  • d. None of the above is correct. 

9. Refer to Table 29-5. If the bank faces a reserve requirement of 8 percent, then the bank

  • a. is in a position to make a new loan of \(\$ 14,000\).
  • b. has fewer reserves than are required.
  • c. has excess reserves of \(\$ 16,400\).
  • d. None of the above is correct.

10. Refer to Table 29-5. Suppose the bank faces a reserve requirement of 10 percent. Starting from the situation as depicted by the T-account, a customer deposits an additional \(\$ 60,000\) into his account at the bank. If the bank takes no other action it will

  • a. have \(\$ 64,000\) in excess reserves.
  • b. have \(\$ 4,000\) in excess reserves.
  • c. be in a position to make new loans equal to \(\$ 6,000\)
  • d. None of the above is correct.

In: Economics

Which of the following policies can the Fed follow to increase the money supply?

Which of the following policies can the Fed follow to increase the money supply?

  • Reduce the interest rate on reserves
  • Increase reserve requirements for banks
  • Reduce the quantity of funds available through the Term Auction Facility
  • Sell government bonds

In: Economics

Which of the following is NOT an example of monetary policy?

Which of the following is NOT an example of monetary policy?

  • a. The Federal Reserve reduces the reserve requirements.
  • b. The Federal Open Market Committee decides to sell bonds.
  • c. The Federal Reserve facilitates bank transactions by clearing checks.
  • d. The Federal Open Market Committee decides to buy bonds.

In: Economics

The agency responsible for regulating the money supply in the united states is

The agency responsible for regulating the money supply in the United States is

  • the Comptroller of the Currency.
  • the U.S. Treasury.
  • the Federal Reserve.
  • the U.S. Bank.

 

In: Economics

Find the moment of inertia Ix of particle a with respect to the x axis

Find the moment of inertia Ix of particle a with respect to the x-axis (that is, if the x-axis is the axis of rotation), the moment of inertia Iy of particle a with respect to the y axis, and the moment of inertia Iz of particle a with respect to the z-axis (the axis that passes through the origin perpendicular to both the x and y axes).
Express your answers in terms of m and r separated by commas.

In: Physics

On which of the following does the moment of inertia of an object depend?

On which of the following does the moment of inertia of an object depend?
Check all that apply.
 
  • linear speed
  • linear acceleration
  • angular speed
  • angular acceleration
  • total mass
  • shape and density of the object
  • location of the axis of rotation

 

In: Physics

What is the speed of an electron that has been accelerated from rest through a potential difference of 1050?

What is the speed of an electron that has been accelerated from rest through a potential difference of 1050?

In: Physics

What is the electric potential energy of the group of charges in the figure?

What is the electric potential energy of the group of charges in the figure?

In: Physics

A proton is released from rest at the positive plate of a parallel-plate capacitor. It crosses the capacitor and reaches the negative plate with a speed of 45000 m/s.

A proton is released from rest at the positive plate of a parallel-plate capacitor. It crosses the capacitor and reaches the negative plate with a speed of 45000 m/s.

What will be the final speed of an electron released from rest at the negative plate?

Express your answer to two significant figures and include the appropriate units

V=_________

In: Physics

Each part of (Figure 1) shows one or more point charges. The charges have equal magnitudes.

Each part of (Figure 1) shows one or more point charges. The charges have equal magnitudes.

A) For case (a), if a positive charge is moved from position i to position f, does the electric potential energy increase, decrease, or stay the same?

For case (a), if a positive charge is moved from position to position, does the electric potential energy increase, decrease, or stay the same?

  Electric potential energy increases.
  Electric potential energy decreases.
  Electric potential energy stays the same.
  It's impossible to determine.

B)For case (b), if a positive charge is moved from position i to position f, does the electric potential energy increase, decrease, or stay the same?

For case (b), if a positive charge is moved from position to position, does the electric potential energy increase, decrease, or stay the same?

  Electric potential energy increases.
  Electric potential energy decreases.
  Electric potential energy stays the same.
  It's impossible to determine.

C)For case (c), if a positive charge is moved from position i to position f, does the electric potential energy increase, decrease, or stay the same?

For case (c), if a positive charge is moved from position to position, does the electric potential energy increase, decrease, or stay the same?

  Electric potential energy increases.
  Electric potential energy decreases.
  Electric potential energy stays the same.
  It's impossible to determine.

D)For case (d), if a positive charge is moved from position i to position f, does the electric potential energy increase, decrease, or stay the same? For case (d), if a positive charge is moved from position to position, does the electric potential energy increase, decrease, or stay the same?

  Electric potential energy increases.
  Electric potential energy decreases.
  Electric potential energy stays the same.
  It's impossible to determine.

In: Physics

As shown, two protons are launched with the same speed from point 1 inside a parallel-plate capacitor.

As shown, two protons are launched with the same speed from point 1 inside a parallel-plate capacitor. One proton moves along the path from 1 to 2 , the other from 1 to 3 . Points 2 and 3 are the same distance from the positive plate.

a. Is \(\Delta U_{1 \rightarrow 2}\), the change in potential energy along the path \(1 \rightarrow 2\), larger than, smaller than, or equal to \(\Delta U_{1 \rightarrow 3}\) ? Explain.

b. Is the proton's speed \(v_{2}\) at point 2 larger than, smaller than, or equal to the proton's speed \(v_{3}\) at point 3 ? Explain.

In: Physics