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WorksheetsMeiosis and Mitosis
Total questions: 20
Worksheet time: 20mins
The activities in the cell cyclle occur during specific phases. In which phase of the cell cycle is DNA replicated ?
Mitosis
G1 Phase
G2 Phase
S phase
This model of the cell cycle includes two arrows that each represent a process in the cycle.
What so the two arrows represent ?
Arrow 1 represents phrophase and arrow 2 represent interphase
Arrow 1 represents mitosis and arrow 2 represent meioisis
Arrow 1 represents interphase and arrow 2 represent mitosis
Arrow 1 represents meiosis and arrow 2 represent prophase
Part of the cell cycle is shown in this simplified model.
This part of the cell cycle is best described as the process that....
Duplicates DNA
Completes cell division
maintains genetic homeostasis
synthesizes new molecules
The diagram shows cells in different phases of mitosis. A student is trying to find a cell in a particular phase of mitosis. The student is looking for evidence that spindle fibers are separating the chromosomes to ensure that each nucleus has one copy of each chromosome.
Which cell is the phase of mitosis that the student is searching for ?
Cell 1
Cell 2
Cell 3
Cell 4
Oncogenes are mutated forms of genes. Oncogenes can transform a cell into a tumor cell. Some tumor cells are benign, while others are malignant. How does the presence of an oncogene lead to the formation of a tumor ?
ATP production is inhibited
Cell division is unregulated
Somatic Cell growth is inhibited
Antibody activity is unregulated
A photomicrograph of opnion root tip cells during mitosis is shown below. Which phase of mitosis is occurring in the cell indicated by the arrow ?
Prophase
Metaphase
Anaphase
Telophase
Telophase is a stage of a cellular process that begins after the chromosomes have moved to opposite poles of the cell. During which cellular process does telophase occur ?
Translation
Interphase
Transcription
Mitosis
Gametes produced by an organism contain a combination of genes from that organism. In every gamete, this combination is....
The same because it is created from the same DNA
The same because chromosomes are copied prior to meiosis
Different due to DNA replication prior to mitosis
Different due to independent assortment during meiosis
In the early 1900s, Thomas Hunt Morgan was among the first scientist to contribute to the chromosome theory of heredity. Morgan's investigations into heredity in fruit flies led him to propose that the event represented in the diagram sometimes occurs.
Which statement about the even represented in the diagram is valid ?
The event represents RNA translation in the smooth endoplasmic reticulum.
The event takes place in bacterial cells.
The event produces genetically identical daughter cells
The even provides genetic diversity in eukaryotic cells.
Human body cells each have 46 chromosomes in their nuclei. Meiosis is necessary in order to ensure that each gamete produced in the human body has ___
12 chromosomes
23 chromosomes
46 chromosomes
92 chromosomes
Sexual reproduction in animals depends on the production of gametes. Which of these process produces gametes in animals?
Mitosis
Fertilization
Meiosis
Binary Fission
Students use a microscope to look for structures present in four different cells. The students place an X for each structure that was viewed for each cell on the table shown.
Which cell was viewed is most likely a prokaryote?
Cell W
Cell X
Cell Y
Cell Z
A type of cellular transport is shown.
Which description best identifies this type of cellular transport ?
Active transport, because energy is being used to move molecules against the concentration gradient.
Facilitated diffusion, because energy is being used to move molecules with the concentration gradient.
Osmosis, because energy is not being used to move molecules with the concentration gradient.
Endocytosis, because energy is not being used to move move molecules against the concentration gradient.
This diagram shows cellular activity across a cell membrane.
Which two processes does this diagram most directly model?
Energy conversions and synthesis of new molecules
Synthesis of new molecules and homeostasis
Transport of molecules and energy conversions
Homeostasis and transport of molecules
The picture shows a 3-D model of a virus called a bacteriophage. Bacteriophages can infect bacteria such as E.Coli.
In what way are the bacteriophage and E.coli alike ?
They contain antibodies
They Reproduce by mitosis
They have identical genomes
They lack-membrane bound organlles
Viruses can be transmitted through air,water,food, insect bites and direct skin contact. Once a virus gains entry to the body, it invades a host cell in order to...
deactivated the host cell's defences
synthesize antibodies for denfense
metabolize host proteins and grow
access cellular process for replication
Which of these statements best explains the process of energy conversions that take place in the mitochondria?
Energy is required for carbon dioxide molecules to form six-carbon sugar molecules.
Water molecules and radiant energy are necessary for anaerobic respiration to take place.
Oxygen molecules release energy in the form of heat during combustion reactions.
The energy in the bonds of glucose molecules is transferred to the phosphate bonds in ATP.
Which molecule synthesized by plants is a major source of energy for cellular processes in both plants and animals ?
Wax
Nucleic acid
Glucose
Chlorophyll
A student preparing for a hike wants to pack a snack that has bio-molecules that provide available energy but few calories. Which nutrition label lists the best combination of bio-molecules that provide quickly available energy while providing the fewest calories from other types of bio-molecules ?
Photosynthesis and cellular respiration both involve the use and release of gases. Which statement correctly identifies the role of gases in the two processes?
Photosynthesis and cellular respiration both use carbon dioxide and release oxygen.
photosynthesis and cellular respiration both use oxygen and release carbon dioxide.
Cellular respiration uses oxygen and releases carbon dioxide, while photosynthesis uses carbon dioxide and releases oxygen.
Cellular respiration uses carbon dioxide and releases oxygen, while photosynthesis uses oxygen and releases carbon dioxide.
