How are leaf cells and root cells different?
Responses
Leaf cells have nuclei, but root cells do not
Leaf cells have nuclei, but root cells do not
Leaf cells have chloroplasts, but root cells do not.
Leaf cells have chloroplasts, but root cells do not.
Leaf cells can absorb nutrients from the air, but root cells require soil to absorb nutrients.
Leaf cells can absorb nutrients from the air, but root cells require soil to absorb nutrients.
Leaf cells can reproduce, but root cells cannot.
Leaf cells and root cells have different functions and structures, resulting in several differences between them.
1. Leaf cells have nuclei, while root cells do not. Both types of cells contain genetic material in their nuclei, but leaf cells have visible nuclei, while root cells have a higher concentration of cytoplasm and a lower nucleus-to-cytoplasm ratio, making their nuclei less visible.
2. Leaf cells have chloroplasts, while root cells do not. Chloroplasts are organelles responsible for photosynthesis, which occurs in leaf cells. Root cells do not carry out photosynthesis and thus do not require chloroplasts.
3. Leaf cells can absorb nutrients from the air through structures called stomata, while root cells require soil to absorb nutrients. Leaf cells have specialized structures called stomata that allow the exchange of gases, including the uptake of carbon dioxide for photosynthesis. In contrast, root cells have root hairs and other adaptations to efficiently absorb water and nutrients from the soil.
4. Leaf cells can reproduce, while root cells cannot. Leaf cells can undergo mitosis, the process of cell division, allowing them to reproduce and replace damaged or aged cells. Root cells, on the other hand, do not undergo mitosis and primarily function in absorption and anchoring the plant.
answer my question
I apologize for any confusion. No, leaf cells and root cells both have nuclei.
thank you
You're welcome! If you have any more questions, feel free to ask.
Of the five characteristics of living things, which one is required for the species to survive but does not have to apply to an individual?
Responses
response to the environment
response to the environment
reproduction
reproduction
use of energy to function
use of energy to function
growth and change over a life cycle
The characteristic that is required for the species to survive but does not have to apply to an individual is reproduction. While individuals within a species may or may not reproduce, it is necessary for the species as a whole to reproduce in order to continue its existence.
answer my question
The characteristic that is required for the species to survive but does not have to apply to an individual is reproduction. While reproduction is crucial for the survival and continuation of a species, not every individual within the species needs to reproduce for the species to persist.
A student claims that, according to cell theory, the cell is the basic unit of life, and all cells are created spontaneously. Is this student correct?
Responses
Yes, the student is correct because the basic unit of life is the cell.
Yes, the student is correct because the basic unit of life is the cell.
Yes, the student is correct because all cells are created spontaneously.
Yes, the student is correct because all cells are created spontaneously.
No, the student is not correct because the basic unit of life is within a cell.
No, the student is not correct because the basic unit of life is within a cell.
No, the student is not correct because all cells come from preexisting cells.
No, the student is not correct because all cells come from preexisting cells. According to the cell theory, cells can only arise from preexisting cells through processes such as cell division. Cells are not spontaneously created. Furthermore, the cell is indeed considered the basic unit of life, but it is not the unit within a cell. The cell itself is the fundamental structure and functional unit of all living organisms.
What is the function of a nerve cell in a multicellular organism?
Responses
store and distribute oxygen
store and distribute oxygen
make and move protein
make and move protein
produce and manage movement
produce and manage movement
carry and transmit signals
The function of a nerve cell in a multicellular organism is to carry and transmit signals. Nerve cells, also known as neurons, are specialized cells that are responsible for transmitting electrical signals throughout the body. They receive and process information from the environment or other parts of the body, and then transmit signals to other nerve cells or target cells, such as muscle cells or gland cells, to initiate specific responses or actions.
Which sentence correctly describes the differences between plant and animal cells in regards to cell walls and plasma membranes?
Responses
The cell wall is found only in plant cells, while the plasma membrane is found in both plant and animal cells.
The cell wall is found only in plant cells, while the plasma membrane is found in both plant and animal cells.
The cell wall is found only in plant cells, while the plasma membrane is found only in animal cells.
The cell wall is found only in plant cells, while the plasma membrane is found only in animal cells.
The cell wall is found only in animal cells, while the plasma membrane is found only in plant cells.
The cell wall is found only in animal cells, while the plasma membrane is found only in plant cells.
The cell wall is found only in animal cells, while the plasma membrane is found in both plant and animal cells.
The sentence that correctly describes the differences between plant and animal cells in regards to cell walls and plasma membranes is:
The cell wall is found only in plant cells, while the plasma membrane is found in both plant and animal cells.
If a particular cell is known to be round and incapable of producing its own food, which one of these organelles would you assume the cell must have?
Responses
cell wall
cell wall
plasma membrane
plasma membrane
chloroplast
chloroplast
central vacuole
If a particular cell is known to be round and incapable of producing its own food, the organelle that you would assume the cell must have is the plasma membrane. The plasma membrane is responsible for regulating the movement of substances in and out of the cell and it is present in all cells, regardless of their shape or ability to produce food.
answer the question
If a particular cell is known to be round and incapable of producing its own food, the organelle that you would assume the cell must have is the plasma membrane.
What made the discovery of cells possible?
Responses
the study of viruses and bacteria
the study of viruses and bacteria
the invention of the microscope
the invention of the microscope
the use of magnifying glasses
the use of magnifying glasses
the observation of cells by Hooke and Pasteur
The discovery of cells was made possible by the invention of the microscope. The development of microscopes allowed scientists to magnify and observe cells, leading to the understanding of their existence and structure.
Which statement about plasma membranes is correct?
Responses
Both plant cells and animal cells have flexible plasma membranes.
Both plant cells and animal cells have flexible plasma membranes.
Plant cells have cell walls instead of plasma membranes.
Plant cells have cell walls instead of plasma membranes.
Plant cells have rigid plasma membranes.
Plant cells have rigid plasma membranes.
Animal cells have cell membranes instead of plasma membranes.
The correct statement about plasma membranes is: Both plant cells and animal cells have flexible plasma membranes.
Plant cells have plasma membranes along with cell walls, while animal cells have plasma membranes without cell walls. The plasma membrane in both plant and animal cells is a flexible and selectively permeable membrane that surrounds the cell and regulates the movement of substances in and out of the cell.