What is the similarity between a prokaryotic and a eukaryotic cell?(1 point)

Responses

Both prokaryotic and eukaryotic cells are filled with cytoplasm.
Both prokaryotic and eukaryotic cells are filled with cytoplasm.

Both prokaryotic and eukaryotic cells have no organelles.
Both prokaryotic and eukaryotic cells have no organelles.

Both prokaryotic and eukaryotic cells have a nucleus and cell organelles.
Both prokaryotic and eukaryotic cells have a nucleus and cell organelles.

Both prokaryotic and eukaryotic cells always have a cell membrane and a cell wall.

11 answers

The correct similarity between prokaryotic and eukaryotic cells is:

Both prokaryotic and eukaryotic cells are filled with cytoplasm.

Prokaryotic cells do not have a nucleus or membrane-bound organelles, while eukaryotic cells do. Also, not all prokaryotic and eukaryotic cells have a cell wall. Therefore, the statement about both types of cells being filled with cytoplasm is the only accurate similarity among the options provided.

Most structures in a cell are membrane-bound, but some are not. Which structure lacking a membrane is present in plant cells and not in animal cells?(1 point)
Responses

cell wall
cell wall

chloroplast
chloroplast

cytoplasm
cytoplasm

mitochondrion

The correct answer is cell wall.

Plant cells have a rigid cell wall that provides structure and support, while animal cells do not have a cell wall. Chloroplasts are membrane-bound organelles found in plant cells, and both cytoplasm and mitochondria are present in both plant and animal cells.

Which category of macromolecules provides the energy used directly in cells? (1 point)
Responses

proteins
proteins

nucleic acids
nucleic acids

lipids
lipids

carbohydrates

The correct answer is carbohydrates.

Carbohydrates are the primary source of energy for cells and are utilized directly in cellular processes. While lipids also can store energy and proteins can be metabolized for energy, carbohydrates are specifically known for providing quick, accessible energy to cells.

How is energy stored in ATP?(1 point)
Responses

ADP loses one phosphate group, leaving it with more energy.
ADP loses one phosphate group, leaving it with more energy.

ADP is given a third phosphate group, which stores energy in the bond.
ADP is given a third phosphate group, which stores energy in the bond.

ADP is given energy from glucose until it has enough energy to become ATP.
ADP is given energy from glucose until it has enough energy to become ATP.

ADP loses its extra energy to ATP with the help of glucose.

The correct answer is ADP is given a third phosphate group, which stores energy in the bond.

ATP (adenosine triphosphate) is formed when adenosine diphosphate (ADP) gains an inorganic phosphate group, and the bond formed between the phosphate group and ADP stores energy. This energy can then be used by the cell for various biochemical processes.

A virus is made of a coat, called a capsid, and its genetic material. What material is the capsid made of?(1 point)
Responses

cell membrane
cell membrane

RNA
RNA

protein
protein

DNA

The correct answer is protein.

The capsid is the protein coat that encloses and protects the viral genetic material, which can be either RNA or DNA. The capsid is made up of protein subunits called capsomers.

Why is it difficult to create a vaccine against a common cold?(1 point)
Responses

Vaccines are unnecessary because antibiotics are an effective treatment.
Vaccines are unnecessary because antibiotics are an effective treatment.

The viral genome mutates very quickly.
The viral genome mutates very quickly.

Vaccines are only effective against bacterial infections.
Vaccines are only effective against bacterial infections.

It is impossible to create a vaccine against illnesses caused by proviruses.

The correct answer is The viral genome mutates very quickly.

One of the reasons it's challenging to create a vaccine for the common cold is that the viruses that cause it, particularly rhinoviruses, have a high mutation rate. This rapid mutation allows them to evade the immune system, making it difficult for a vaccine to provide effective long-term protection.