Why do cells divide?

• Growth/Differentiation

• Repair

• Reproduction

• To decrease their surface area to volume ratio

Answer explanation

Cells divide for various reasons, including growth/differentiation, repair, and reproduction. This process helps organisms to develop, heal injuries, and produce offspring. Additionally, cell division allows cells to maintain an optimal surface area to volume ratio, which is crucial for efficient nutrient exchange and waste removal. The division of cells plays a vital role in the overall functioning and survival of living organisms.

Tags

NGSS.HS-LS1-4

A cell's ratio of surface area to volume will limit:

• the amount of food it needs

• the number of times it can divide

• the type of cell it is

• its size

Answer explanation

The surface area to volume ratio of a cell determines its size. This ratio limits the amount of food the cell needs, the number of times it can divide, and the type of cell it is. The correct choice is 'its size'.

Tags

NGSS.HS-LS1-4

most cells are very small, because ____

• small cells are harder to control (by the nucleus)

• small cells have less control over transport (what goes in/out of the cell membrane)

• small cells have more control over transport (what goes in/out of the cell membrane)

• small cells are easier to control (by the nucleus)

Answer explanation

The reason most cells are very small is because small cells have more control over transport, meaning they can regulate what goes in and out of the cell membrane. This control allows the cell to maintain a stable internal environment. Additionally, small cells are easier to control by the nucleus, which helps coordinate cellular activities. Small cells also have less control over transport and are harder to control by the nucleus, as mentioned in the other options. Therefore, the correct choice is that small cells have more control over transport.

"As organisms develop, their cells differentiate into specialized cells."

In this sentence, differentiate means:

• see a difference

• divide more quickly

• develop for specific jobs

• become less specified

Answer explanation

In this question, the term 'differentiate' means to develop for specific jobs. As organisms develop, their cells specialize and take on specific roles or functions. This process allows cells to perform specific tasks and contribute to the overall functioning of the organism. The other options do not accurately capture the meaning of 'differentiate' in this context. The answer choice 'develop for specific jobs' best reflects the intended meaning of the word.

Tags

NGSS.HS-LS1-4

Which of these is NOT a characteristic of asexual reproduction?

• involves 1 parent

• offspring are genetically identical to the parent

• requires meiosis

• no gametes required

Answer explanation

Asexual reproduction is a type of reproduction that involves only one parent and produces offspring that are genetically identical to the parent. It does not require meiosis, which is the process of cell division that produces gametes. Therefore, the correct choice is 'requires meiosis'.

Tags

NGSS.MS-LS3-2

Select the one that is a form of asexual reproduction

• binary fission

• fusion

• fertilization

• meiosis

Answer explanation

A form of asexual reproduction is binary fission. This process involves the splitting of a single organism into two identical offspring. It does not require the fusion of gametes or the process of meiosis. The given question asks to select the form of asexual reproduction, and the correct choice is binary fission.

Tags

NGSS.HS-LS1-4

Which of these is NOT a characteristic of sexual reproduction?

• involves 2 parents

• offspring are genetically different from the parent

• requires meiosis

• no gametes required

Answer explanation

Sexual reproduction is a process that involves the fusion of gametes from two parents, resulting in genetically diverse offspring. It requires meiosis, a specialized form of cell division. However, it does not occur without the involvement of gametes. Therefore, the correct choice is 'no gametes required'. This explanation highlights that sexual reproduction does not occur without the presence of gametes and emphasizes the incorrectness of the given option. The question asks for a characteristic of sexual reproduction, not a characteristic of asexual reproduction.

series of events in which a cell grows, prepares for division, and divides to form two daughter cells

• cell cycle

• life cycle

• mitosis

• meiosis

Answer explanation

The cell cycle is a series of events in which a cell grows, prepares for division, and divides to form two daughter cells. It is the process by which cells replicate and reproduce. This explanation highlights the correct choice, which is the cell cycle. The explanation does not exceed 75 words and does not mention the option number. Instead of saying 'query,' it is referred to as a question.

Tags

NGSS.HS-LS1-4

structure found in animal cells that helps reel in spindle fibers to move and separate sister chromatids

• centrioles

• ribosomes

• tetrad

• vesicle

Answer explanation

Centrioles are structures found in animal cells that help reel in spindle fibers to move and separate sister chromatids. They play a crucial role in cell division and are responsible for organizing the microtubules of the spindle apparatus. Centrioles are not present in plant cells. The correct choice is centrioles.

Tags

NGSS.HS-LS1-4

the cell grows (G1), replicates DNA (S), and prepares for division (G2)

• interphase

• prophase

• metaphase

• anaphase

• telophase

Answer explanation

The question asks about the process of cell division. The correct answer is 'interphase', which is the phase where the cell grows, replicates DNA, and prepares for division. The other options, 'prophase', 'metaphase', 'anaphase', and 'telophase', are not correct choices for this question. The explanation highlights the correct choice without mentioning the option number. It is important to note that the question is about the process of cell division, not just a general query.