and cover it with à cov ersnp 2. Focus on the these plane plant cells eventually
ID: 148890 • Letter: A
Question
and cover it with à cov ersnp 2. Focus on the these plane plant cells eventually working up to the 40X objective. You do not need to st even see cells to observe them with a light microscope. Why? What do the cells look Iik organelles? If so, what do you think they are? Draw at least 5 of these plant cells in a 3. Follow the procedure your lab notebook and make sure to record the magnification. ure as written above in step 6 using a Kimwipe as a wick. First expose t and then deionized water. What do you predict will happen to the cells abo cells to 5% NaCl deion under these various ionic minutes in the new minutes in thonditions? Draw the cells in your notebook allowing at least S environment before making your final observations. er devos tinuld happen if you were to change the extracelllar space to deion water sketchine ore the cells had been exposedto 5% aci? Try it and record your observation the cells in your notebook. S. M sure to throw your slides and coverslips in the glass disposal box at the front of t Put away your microscopes and make sure your lab bench is clean. 1. What is the ionic condition of the extracellular space cells with deionized water? 0.9% Naci? 5% Naci? compared to the animal 2. What is the ionic condition of the extracellular space compared to the plant cells with deionized water? 5% Naci? why didn't we observe plant cells in 0.9% NaCI? 3. What is causing the changes in both the plant and animal cells when ionic concentrations change? 4. What are the similarities between the animal and plant cells you observed today? What are the differences? 5. What are some structural explanations for why animal and plant cells differ in response to changes in the extracellular space? C&MB Lab ManualExplanation / Answer
general question
Answer 1
A solution of 0.9% Nacl is isotonic to the cytoplasm of cells, when the animal cells kept in such a solution then there is no concentration gradient across the cell membrane. That’s why We observe the plant cell at 5% nacl and and don’t observe the cells at 0.9% nacl
Answer 3
They change size and shape when put into solutions that are at a different concentration in both the plant & animal cells when the ionic concentration is changed
Answer 4
Eukaryotic cells are found in both plant and animal cells, both the cells also include cetain organelles like cell nucleus , mitochondria , ER , ribosome etc
difference between plant and animalvacuoles is that plants have one large vacuole enclosed by a membrane andanimal cells have many, smaller vacuoles
Answer 5
Structures include: chloroplasts, the cell wall and vacuoles.
Chloroplasts
In animal cells, mitochondria produce most of the energy in food cells. Plant cells use sunlight as a source of energy; Sunlight must be converted into energy in a process called photosynthesis. Chloroplasts perform this function. The conversion of energy in plants is a complex set of reactions similar to those performed by mitochondria in animals.
The cell wall
Another structural difference between plant cells is the presence of a rigid cell wall that surrounds the cell membrane. The resistant wall provides greater stability and protection to the cell of the plant. If you think about it, most animal cells are inside an organism that has an exoskeleton or an endoskeleton, a constructed structure. Plants do not have a skeleton of any kind, so the cells have to do this.
Vacuoles
Vacuoles are large, fluid-filled organelles found only in plant cells. Vacuoles can occupy up to 90% of the volume of a cell and have a single membrane. Their main function is to fill the space in the cell, but they can also fill digestive functions and their interiors can be used as storage of nutrients.
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