If the sequence of bases on the mRNA codon is AUU, what would be the sequence of bases on the opposite strand assembled by the tRNA?(1 point)

Question

Responses

UUA
UUA

UAA
UAA

TAA
TAA

ATT

Answer 1

The mRNA codon AUU pairs with the tRNA anticodon. To determine the tRNA anticodon, we need to find the complementary bases for the mRNA codon:

• A pairs with U
• U pairs with A
• U pairs with A

Therefore, the tRNA anticodon for the mRNA codon AUU would be UAA.

So, the correct response is:

UAA

Answer 2

Which of the following correctly shows the sequence of organelles a protein would take if it were being exported from the cell?(1 point)
Responses

Ribosome →
Vesicle →
Rough ER →
Vesicle →
Golgi Apparatus →
Cell Membrane
Ribosome right arrow Vesicle right arrow Rough ER right arrow Vesicle right arrow Golgi Apparatus right arrow Cell Membrane

Ribosome →
Rough ER →
Vesicle →
Golgi Apparatus →
Vesicle →
Cell Membrane
Ribosome right arrow Rough ER right arrow Vesicle right arrow Golgi Apparatus right arrow Vesicle right arrow Cell Membrane

Ribosome →
Smooth ER →
Vesicle →
Cell Membrane →
Vesicle →
Rough ER
Ribosome right arrow Smooth ER right arrow Vesicle right arrow Cell Membrane right arrow Vesicle right arrow Rough ER

Smooth ER →
Vesicle →
Golgi apparatus →
Rough ER →
Vesicle →
Nucleus
Smooth ER right arrow Vesicle right arrow Golgi apparatus right arrow Rough ER right arrow Vesicle right arrow Nucleus

Answer 3

The correct sequence for the pathway a protein would take for export from the cell is as follows:

1. Ribosome: where the protein is synthesized (specifically on the Rough ER for proteins that will be exported).
2. Rough ER: where the protein is properly folded and processed.
3. Vesicle: transports the protein from the Rough ER to the Golgi apparatus.
4. Golgi Apparatus: modifies, sorts, and packages the protein for export.
5. Vesicle: transports the protein from the Golgi apparatus to the cell membrane.
6. Cell Membrane: where the protein is exported out of the cell.

Thus, the correct response is:

Ribosome → Rough ER → Vesicle → Golgi Apparatus → Vesicle → Cell Membrane

Answer 4

Proteins are important molecules that are synthesized, transported, and used in cells in a multitude of ways. The rough endoplasmic reticulum and Golgi apparatus have parts to play in this system. These functions are __________, respectively.

Identify the answer choice that correctly fills in the blank in the above passage.

(1 point)
Responses

DNA making and DNA packaging
DNA making and DNA packaging

protein packaging and lipid production
protein packaging and lipid production

protein making and protein packaging
protein making and protein packaging

DNA packaging and DNA storing

Answer 5

The correct answer choice that fills in the blank in the passage is:

protein making and protein packaging.

The rough endoplasmic reticulum (RER) is primarily involved in the synthesis (making) of proteins, while the Golgi apparatus is responsible for packaging and modifying those proteins for transport and export.

Answer 6

In which part of the cell do ribosomes perform protein synthesis?(1 point)
Responses

vacuole
vacuole

nucleus
nucleus

lysosome
lysosome

cytoplasm

Answer 7

Ribosomes perform protein synthesis primarily in the cytoplasm of the cell. While ribosomes can be found free-floating in the cytoplasm, they can also be bound to the rough endoplasmic reticulum (RER), where they synthesize proteins that are typically directed for secretion or for use in the cell membrane.

So the correct response is:

cytoplasm.

Answer 8

What would happen to a cell that lacked smooth endoplasmic reticulum?(1 point)
Responses

It would not be able to produce tRNA.
It would not be able to produce tRNA.

It would not be able to make lipids.
It would not be able to make lipids.

It would not be able to replicate DNA.
It would not be able to replicate DNA.

Its cell membrane would be impermeable.
Its cell membrane would be impermeable.

Answer 9

The smooth endoplasmic reticulum (smooth ER) is primarily involved in lipid synthesis, as well as the metabolism of carbohydrates and the detoxification of drugs and poisons. If a cell lacked smooth endoplasmic reticulum, it would indeed have difficulty making lipids.

Therefore, the correct response is:

It would not be able to make lipids.