Chapter 5

अब Quizwiz के साथ अपने होमवर्क और परीक्षाओं को एस करें!

What does a cell make during the synthesis stage of the cell cycle?

A copy of DNA

During which phase of mitosis do sister chromatids separate from each other?

Anaphase

Which of the following statements is true of cytokinesis?

Completes the cell cycle

During interphase a cell grows, duplicates organelles, and?

Copies DNA

The gap 1, gap 2, and synthesis stages of the cell cycle make up?

Interphase

In which stage of the cell Cycle do nucleus and it's contents divide?

Mitosis

The process of organizing and condensing DNA into its compact form takes place at the start of?

Mitosis

If a cell cannot move enough material through its membrane to survive, then the ratio of its surface area to volume is?

Too small

Which type of stem cell can grow into any other cell type?

Totipotent

Which phrase best describes cancer?

Uncontrolled cell growth

Which of the following phrases best describes cytokinesis?

division of the cytoplasm

Which phrase best describes fragmentation?

parent organism splits into pieces, each of which forms a new organism

What is the term for the programmed death of cells?

Apoptosis

Stem cells are important to multicellular organisms because of their?

Capacity to differentiate

Substances known to produce or promote cancer are called?

Carcinogens

Which of the following statements is true of asexual reproduction?

It produces genetically identical offspring

Which statement is true of the chromosome shown in Figure 5.2?

Its left and right halves carry identical genetic information.

Multicellular organisms use mitosis for growth, development, and?

Repair

In a single-celled organism, mitosis is used for?

Reproduction

Which of the following is true of malignant tumors?

They can cause tumors in other parts of the body

Why do the cells lining the stomach divide more quickly than those in the liver?

They undergo more wear and tear.

Before a cell can move from the G or G stage to the next stage of the cell cycle, it must grow and?

pass a critical checkpoint

If a tumor is malignant, then cancer cells from the tumor?

Can form more tumors

The processes of mitosis and cytokinesis produce two identical?

Daughter cells

Which statement describes the chromosome shown in Figure 5.2?

It is made up of two chromatids

During which of the following stages shown in Figure 5.1 does cytokinesis take place?

Mitosis

During which of the following stages shown in Figure 5.1 does the cytoplasm of a cell divide?

Mitosis

Which of the following reproduce asexually through mitosis?

some multicellular and unicellular eukaryotes

A plant's leaf consists of?

various types of tissue.

A hormone present in the blood can stimulate the growth of certain cells. The hormone is acting as a(n)?

External factor

Proteins from outside a cell that stimulate it to divide are called?

Growth factors

Which statement is true about the rates of cell division in eukaryotes?

They vary greatly within an organism

Which of the following limits the maximum size of a cell?

the ratio of cell surface area to volume

One difference between a cancer cell and a normal cell is that?

cancer cells can divide in the absence of growth factors

Which statement about the process of binary fission is true?

It does not take place in multicellular organisms.

What is the main difference between binary fission and mitosis?

Binary fission occurs in single-celled organisms only

Which of the following is a direct result of a normal cell's ability to express only certain genes?

Cells can differentiate and specialize

One difference between a cancer cell and a normal cell is that?

cancer cells divide uncontrollably.

During the gap 1 stage of the cell cycle, a cell?

carries out its normal functions

Which sequence shows the progression from least complex structure to most complex structure?

cell-tissue-organ-organ system

Kinases and cyclins are internal factors that?

control the cell cycle


संबंधित स्टडी सेट्स

MGMT316 - ch.12.1-12.3, 12.5,12.6 - Motivation

View Set

PrepU Query Quiz: Labor and Delivery

View Set

Table of Elements and Patterns in the Periodic Table

View Set

NM Life Insurance Final Exam Mock Test

View Set

Community Exam 1 Practice Questions

View Set