Topic 2 - Keystone Sample Quiz
Cells & Cell structure Content
- 1.Which sequence of terms represents a decrease from the greatest number of structures to the least number of structures present in a cell?
- A.
nucleus → gene → chromosome
- B.
gene → nucleus → chromosome
- C.
Gene → chromosome → nucleus
- D.
Chromosome → gene → nucleus
- 2.
![Some human body cells are shown in the diagrams below.
These groups of cells represent different - ProProfs]( "Some human body cells are shown in the diagrams below.
These groups of cells represent different")
Some human body cells are shown in the diagrams below. These groups of cells represent different- A.
Tissues in which similar cells function together
- B.
Organs that help to carry out a specific life activity
- C.
Systems that are responsible for a specific life activity
- D.
organelles that carry out different functions
- 3.Genes involved in the production of abnormal red blood cells have an abnormal sequence of
- A.
ATP molecules
- B.
Amino acids
- C.
Sugars
- D.
Bases
- 4.Research has shown that certain body cells, known as stem cells, can develop into a variety of specialized cells. Various factors can cause stem cells to develop into different types of mature cells. These different types of mature cells result from
- A.
Different antibodies and mitotic cell division
- B.
Identical genetic codes and meiotic cell division
- C.
Different environments of the cells and the functioning of different parts of the genetic code
- D.
Similar steps in the development of the cells and a reduction in the number of chromosomes in each cell
- 5.Which statement is true of both mitosis and meiosis? Both are involved in asexual reproduction.
- A.
Both are involved in asexual reproduction.
- B.
Both occur only in reproductive cells.
- C.
The number of chromosomes is reduced by half.
- D.
DNA replication occurs before the division of the nucleus.
- 6.Down syndrome is a genetic disorder caused by the presence of an extra chromosome in the body cells of humans. This extra chromosome occurs in a gamete as a result of
- A.
An error in the process of cloning
- B.
An error in meiotic cell division
- C.
A gene mutation
- D.
Replication of a single chromosome during mitosis
- 7.
![Part of embryonic development in a species is illustrated in the diagram below.
Which set of factors plays the most direct role in controlling the events shown in the diagram? - ProProfs]( "Part of embryonic development in a species is illustrated in the diagram below.
Which set of factors plays the most direct role in controlling the events shown in the diagram?")
Part of embryonic development in a species is illustrated in the diagram below. Which set of factors plays the most direct role in controlling the events shown in the diagram?- A.
Genes, hormones, and cell location
- B.
Antibodies, insulin, and starch
- C.
ATP, amino acids, and inorganic compounds
- D.
Abiotic resources, homeostasis, and selective breeding
- 8.Although all of the cells of a human develop from one fertilized egg, the human is born with many different types of cells. Which statement best explains this observation?
- A.
Developing cells may express different parts of their identical genetic instructions.
- B.
Mutations occur during development as a result of environmental conditions.
- C.
All cells have different genetic material.
- D.
Some cells develop before other cells.
- 9.What is the function of the cell membrane?
- A.
Packages what is made in the cell.
- B.
controls cell activities or contains the genetic codes.
- C.
Respiration or energy release or production of ATP
- D.
Regulates what enters and leaves the cell.
- 10.
![Name the cellular organelle labelled C.
- ProProfs]( "Name the cellular organelle labelled C.")
Name the cellular organelle labelled C.- A.
Cytoplasm
- B.
Mitochondria
- C.
Nucleus
- D.
Cell/plasma membrane
- 11.What is the main function of a vacuole in a cell?
- A.
Storage
- B.
Coordination
- C.
Synthesis of molecules
- D.
Release of energy
Questions: 10 | Attempts: 1095 | Last updated: May 8, 2020
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Sample QuestionWhich sequence of terms represents a decrease from the greatest number of structures to the least number of structures present in a cell?
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