Active and passive transport are important processes that help the cell(1 point)

Responses

maintain the cellular membrane.
maintain the cellular membrane. - no response given

change size and shape.
change size and shape. - incorrect

metabolize materials.
metabolize materials. - no response given

regulate the uptake and removal of materials

11 answers

The correct response is:

regulate the uptake and removal of materials.

Active and passive transport are essential for moving substances across the cellular membrane, helping cells to maintain homeostasis by regulating the intake of nutrients and the elimination of waste.

What type of molecule is transported across the cell membrane during osmosis?(1 point)
Responses

sodium
sodium

oxygen
oxygen

water
water

any solute

The correct response is:

water.

Osmosis specifically refers to the movement of water molecules across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Question
What is the difference between mitosis and meiosis?(1 point)
Responses

Mitosis produces two genetically unique daughter cells. Meiosis produces four genetically identical daughter cells.
Mitosis produces two genetically unique daughter cells. Meiosis produces four genetically identical daughter cells.

Mitosis produces four genetically identical daughter cells. Meiosis produces two genetically unique daughter cells.
Mitosis produces four genetically identical daughter cells. Meiosis produces two genetically unique daughter cells.

Mitosis produces four genetically unique daughter cells. Meiosis produces two genetically identical daughter cells.
Mitosis produces four genetically unique daughter cells. Meiosis produces two genetically identical daughter cells.

Mitosis produces two genetically identical daughter cells. Meiosis produces four genetically unique daughter cells.

The correct response is:

Mitosis produces two genetically identical daughter cells. Meiosis produces four genetically unique daughter cells.

Mitosis is involved in growth and repair, producing identical copies, while meiosis is responsible for producing gametes (sperm and egg cells) with half the chromosome number and genetic diversity.

What is the function of mRNA (messenger RNA)?(1 point)
Responses

mRNA functions as a template for protein synthesis.
mRNA functions as a template for protein synthesis.

mRNA functions as a template for DNA synthesis.
mRNA functions as a template for DNA synthesis.

mRNA functions as a template for RNA synthesis.
mRNA functions as a template for RNA synthesis.

mRNA functions as a template for lipid synthesis

The correct response is:

mRNA functions as a template for protein synthesis.

mRNA (messenger RNA) carries the genetic information transcribed from DNA and serves as a template for translating that information into proteins during the process of translation.

What was the first organism to ever be viewed under a microscope?(1 point)
Responses

bacterium
bacterium

fungus
fungus

alga
alga

sperm cell

The correct response is:

sperm cell.

The first organism ever viewed under a microscope was a sperm cell, observed by Antonie van Leeuwenhoek in the late 17th century.

How does the location of DNA differ in prokaryotic and eukaryotic cells?(1 point)
Responses

In prokaryotic cells, DNA is located in the nucleus. In eukaryotic cells, DNA is located in the ribosomes.
In prokaryotic cells, DNA is located in the nucleus. In eukaryotic cells, DNA is located in the ribosomes.

In prokaryotic cells, DNA is located in the nucleus. In eukaryotic cells, DNA is located in the cytoplasm.
In prokaryotic cells, DNA is located in the nucleus. In eukaryotic cells, DNA is located in the cytoplasm.

In prokaryotic cells, DNA is located in the cytoplasm. In eukaryotic cells, DNA is located in the nucleus.
In prokaryotic cells, DNA is located in the cytoplasm. In eukaryotic cells, DNA is located in the nucleus.

In prokaryotic cells, DNA is located in the ribosomes. In eukaryotic cells, DNA is located in the nucleus.

The correct response is:

In prokaryotic cells, DNA is located in the cytoplasm. In eukaryotic cells, DNA is located in the nucleus.

In prokaryotic cells, DNA is found in a region called the nucleoid, while in eukaryotic cells, DNA is contained within a membrane-bound nucleus.