Chloroplasts play an important role in energy production in plant cells. However, some parts of a plant, like the roots, lack chloroplasts. In one to two sentences, explain the most likely pathway for root cells to obtain energy, and identify the organelles involved.
Root cells obtain energy through the process of aerobic respiration, which occurs in the mitochondria, where glucose is broken down to produce ATP.
Chloroplasts play an important role in energy production in plant cells. However, some parts of a plant, like the roots, lack chloroplasts. In one to two sentences, explain the most likely pathway for root cells to obtain energy, and identify the organelles involved IN KIDS WORDS
Root cells obtain energy by breaking down stored glucose through a process called respiration. This happens in small powerhouses inside the cells called mitochondria.
Chloroplasts play an important role in energy production in plant cells. However, some parts of a plant, like the roots, lack chloroplasts. In one to THREE sentences, explain the most likely pathway for root cells to obtain energy, and identify the organelles involved
Root cells obtain energy through the process of aerobic respiration, where they break down glucose in their mitochondria to produce ATP, the energy currency of cells. They can also obtain some energy through anaerobic respiration, which occurs in the cytoplasm, where glucose is partially broken down to produce a small amount of ATP, as well as other byproducts like ethanol or lactic acid.
In three to five sentences, explain why animal cells do not require a cell wall or a central vacuole for their functions.(4 points)
Animal cells do not require a cell wall because they do not need the structural support that cell walls provide in plant cells. Instead, they have a flexible plasma membrane that allows for movement and shape changes. Additionally, animal cells do not have a central vacuole because they do not require the same functions as plant cells, such as storing water, nutrients, or waste products. Animal cells have multiple smaller vacuoles, called vesicles, that perform various roles, such as transporting substances or storing enzymes for digestion. Overall, the absence of a cell wall and a central vacuole in animal cells allows for their unique functions and adaptations in the animal kingdom.
In three to five sentences, explain why animal cells do not require a cell wall for their functions.(4 points)
Animal cells do not require a cell wall because they have an internal skeleton that provides structure and support. This skeleton, composed of bones and connective tissues, allows for movement and protects organs. Additionally, animal cells rely on cell-cell adhesion and extracellular matrix proteins to maintain their shape and integrity. The lack of a cell wall also allows for more flexibility and the ability to change shape, which is important for processes like cell migration and tissue remodeling. Finally, the absence of a cell wall allows for more efficient communication and coordination between animal cells through direct cell-to-cell contact or signaling molecules.
n three to five sentences, explain why animal cells do not require a central vacuole for their functions.
Animal cells do not require a central vacuole because they have other organelles, such as lysosomes and peroxisomes, that perform specific functions related to storage and waste disposal. These organelles help regulate the cell's internal environment by breaking down and recycling waste materials. Animal cells can also regulate osmotic balance through ion channels and transporters in their plasma membrane, eliminating the need for a central vacuole to store excess water or ions. Finally, animal cells have a higher metabolic rate compared to plant cells, requiring them to have a more dynamic and flexible cytoplasm without a central vacuole to accommodate rapid cellular processes.
