In experiments to test whether a protein can enter the nucleus, why would proteins be labeled with fluorescent molecules?

In experiments to test whether a protein can enter the nucleus, why would proteins be labeled with fluorescent molecules?

1. To make the proteins bigger
2. To make the proteins easy to see
3. To give the protein molecules energy
4. To target the proteins to the nucleus

Answer: To make the proteins easy to see

Nucleoplasmin is a nuclear protein. This protein was divided into two segments and linked to the same large cytoplasmic protein, generating two fusion proteins. After injecting these fusion proteins into a cell, one of the proteins was found in the nucleus and the other in the cytoplasm. Which of the following conclusions can be drawn from these results?

Nucleoplasmin is a nuclear protein. This protein was divided into two segments and linked to the same large cytoplasmic protein, generating two fusion proteins. After injecting these fusion proteins into a cell, one of the proteins was found in the nucleus and the other in the cytoplasm. Which of the following conclusions can be drawn from these results?

1. The cytoplasmic protein contains a nuclear localization signal.
2. Nucleoplasmin does not have a nuclear localization signal.
3. One of the fusion proteins entered the nucleus by passive transport.
4. Only one of the two fusion proteins possesses a nuclear localization signal.

Answer: Only one of the two fusion proteins possesses a nuclear localization signal.

What is the most likely pathway taken by a newly synthesized protein that will be secreted by a cell?

What is the most likely pathway taken by a newly synthesized protein that will be secreted by a cell?

1. ER → lysosomes → vesicles that fuse with plasma membrane
2. nucleus → ER → Golgi
3. ER → Golgi → vesicles that fuse with plasma membrane
4. ER → Golgi → nucleus
5. Golgi → ER → lysosome

Answer: ER → Golgi → vesicles that fuse with plasma membrane

Which molecules do not normally cross the nuclear membrane?

Which molecules do not normally cross the nuclear membrane?

1. Proteins
2. Nucleotide triphosphates
3. DNA
4. mRNA

Answer: DNA

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

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

1. The nuclear envelope is composed of two lipid bilayers.
2. The nuclear envelope is continuous with the Golgi apparatus.
3. Molecules pass into and out of the nucleus through nuclear pores.
4. Nuclear pores are made up of a group of proteins that are collectively called the nuclear pore complex.

Answer: The nuclear envelope is continuous with the Golgi apparatus.

True or false? Large proteins containing a nuclear localization signal (NLS) bind to the nuclear pore and enter the nucleus without any expenditure of energy.

True or false? Large proteins containing a nuclear localization signal (NLS) bind to the nuclear pore and enter the nucleus without any expenditure of energy.

Answer: False

A small protein (molecular weight = 25,000 daltons) is injected into a cell and observed in the nucleus a short time later. What type of transport has taken place?

A small protein (molecular weight = 25,000 daltons) is injected into a cell and observed in the nucleus a short time later. What type of transport has taken place?

• Active transport
• Osmosis
• Passive transport

Answer: Passive transport

John would like to move from the city into the suburbs and has been saving up a large down payment for a home. Which is the most cost effective way for John to buy a house in the suburbs?

John would like to move from the city into the suburbs and has been saving up a large down payment for a home. Which is the most cost effective way for John to buy a house in the suburbs?

1. Finish the term of his apartment lease in the city and find a new home to purchase simultaneously.
2. Move to the suburbs and rent a house for one year before purchasing a home.
3. Break his lease once he has bought the perfect home.
4. Break his lease and move to the suburbs immediately without identifying a home to buy.

Answer: Finish the term of his apartment lease in the city and find a new home to purchase simultaneously.

Jim is in the market for a car that will last for the next 10 years and has saved up some money for the purpose of a car. What's the best transportation option for Jim?

Jim is in the market for a car that will last for the next 10 years and has saved up some money for the purpose of a car. What's the best transportation option for Jim?

Answer: utilizing his saving as a down lay,net and buying the car using an auto loan

Which of the following is NOT a cost typically associated with owning a car?

Which of the following is NOT a cost typically associated with owning a car?

Answer: Wear and Tear fees

Depreciating assets:

Depreciating assets:

Answer: Become less valuable over time

Which of the following statements about renting & owning is CORRECT?

Which of the following statements about renting & owning is CORRECT?

Answer: Both the renter and the owner share responsibility and control over the property.

John would like to move from the suburbs into the city, but the rent in the city is very high. John has found an apartment he really likes, but he can only afford about 60% of the monthly rent. What is the best housing option for John?

John would like to move from the suburbs into the city, but the rent in the city is very high. John has found an apartment he really likes, but he can only afford about 60% of the monthly rent. What is the best housing option for John?

Answer: Rent it with a roomate

Owning provides _________ flexibility but can lead to _________ costs in the long-term.

Owning provides _________ flexibility but can lead to _________ costs in the long-term.

Answer: less ; lower

A _________ is generally considered an appreciating asset because it may _________ in value over time.

A _________ is generally considered an appreciating asset because it may _________ in value over time.

Answer: house ; increase

Renting provides _________ flexibility but can lead to _________ costs in the long-term.

Renting provides _________ flexibility but can lead to _________ costs in the long-term.

Answer: greater ; higher

Which of the following statements is correct?

Which of the following statements is correct?

1. Cars typically lose the most value in the first year after purchase.
2. Houses will always appreciate in value over the long-term.
3. Both
4. Neither

Answer: Cars typically lose the most value in the first year after purchase.

Which combination of factors would result in the lowest monthly mortgage payment?

Which combination of factors would result in the lowest monthly mortgage payment?

1. Big down payment, a longer term loan, and low interest rate
2. Big down payment, a shorter term loan, and high interest rate
3. Small down payment, a shorter term loan, and high interest rate
4. Small down payment, a shorter term loan, and small interest rate

Answer: Big down payment, a longer term loan, and low interest rate

Jim wants to buy a car, but he'll probably only need it for a couple of years. He has a short commute to work, so he won't be putting many miles on his vehicle. What's the best transportation option for Jim?

Jim wants to buy a car, but he'll probably only need it for a couple of years. He has a short commute to work, so he won't be putting many miles on his vehicle. What's the best transportation option for Jim?

1. Use his savings to buy the car in full
2. Buy the car using an auto loan
3. Lease the car
4. Take public transportation

Answer: Lease the car

Someone may choose to own a car instead of leasing because:

Someone may choose to own a car instead of leasing because:

1. The car can be resold later to make some money back.
2. The car can be resold later for a higher price.
3. The maintenance costs for a leased car are generally higher.
4. The insurance costs for a leased car are higher.

Answer: The car can be resold later to make some money back.