One difference between cancer cells and normal cells is that cancer cells continue to divide even when they are tightly packed together (option C).
<h3>What are cancer cells?</h3>
Cancer is a disease in which the cells of a tissue undergo uncontrolled (and often rapid) proliferation.
When normal cells become cancerous, they lose the ability to regulate cell division, hence, they continue to divide excessively.
Normal cells are characterized by their ability to regulate cell division during the cell cycle.
Therefore, one difference between cancer cells and normal cells is that cancer cells continue to divide even when they are tightly packed together.
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The categorization of the characteristics based on whether they are describing chloroplasts or mitochondria are as follows:
- <u>Mitochondria:</u> carry out cellular respiration.
- <u>Chloroplasts:</u> carry out photosynthesis.
- <u>Mitochondria:</u> found in plant and animal cells.
- <u>Chloroplasts:</u> produce carbohydrates used as source of food for most living things.
- <u>Mitochondria:</u> abundant in human muscle cells.
- <u>Chloroplasts:</u> not found in animal cells.
- <u>Chloroplasts:</u> contain chlorophyll.
<h3>What is a cell?</h3>
A cell can be defined as the fundamental functional, structural and smallest unit of life, which is found within the body of an organism.
Some examples of cell organelles that are found in the body of an organism include the following:
- Mitochondria.
- Nucleus.
- Endoplasmic reticulum (ER).
- Vesicles.
- Cytoplasm.
- Cell membrane.
- Chromosome.
- Golgi apparatus (bodies).
- Chloroplast
<h3>What is
mitochondria?</h3>
Mitochondria can be defined as one of the cell organelles that is found in the body of a living organism.
Also, mitochondria is known as the powerhouse because it is saddled with responsibility of providing all the energy required in the cell, especially by transforming energy forms through series of chemical reactions.
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<u>Complete Question:</u>
Categorize the following characteristics based on whether they are describing chloroplasts or mitochondria.
Chloroplasts Mitochondria
Carry out cellular respiration
Carry out photosynthesis
Found in plant and animal cells
Produce carbohydrates used as source of food for most living things
Abundant in human muscle cells
Not found in animal cells
Contain chlorophyll
Answer:
The correct answer will be-
1. Evolutionary unity- DNA
2. specialized cellular modifications- plant cells have chloroplasts and large central vacuole.
Explanation:
<u>Case I
</u>
Evolutionary unity is a concept which explains that all the organisms possess some common structure or universal structure or molecules.
The best characterized evolutionary molecule is DNA molecule which took the role of genetic material in past and is passed on to the daughter cells and still is made up of the same components which are a five-carbon sugar, four types of nitrogenous bases and a phosphate group. This DNA molecule is present in almost every organism except for a few viruses.
<u>Case II
</u>
The specialization of the cellular components depends on the function a cell has to perform which became established in the population. The plant cells depended on the sunlight to prepare food for themselves which was done by the chloroplast organelle which is absent in the animal kingdom.
Question 1: C.
Question 2: C.
Question 3: D.
Question 4: A.
Question 5: A.
