PLEASE IN DESPERATE NEED OF HELP!


Cell Division Virtual Lab Activity

Instructions: The Virtual Cell Division Lab is on the lesson assessment page. On the image, it says “Click Anywhere to Start.” Follow the instructions as you move through the lab. The lab activity will keep count of your data on the right, and you can record this into the data table.

Title: Cell cycle

Objective(s):

Hypothesis:

Variables:


Data:
Record the number of cells you observed in the lab activity.

Stages
Number of Cells
Interphase


Prophase


Metaphase


Anaphase


Telophase


Cytokinesis




Observations:
Record any observations about the cells you observed. What does the cell look like for each stage? What is a distinguishing visible feature of each stage of the cell cycle?
Stages
Description of Cell
Interphase


Prophase


Metaphase


Anaphase


Telophase


Cytokinesis



Data Analysis:
Part 1: Calculate the percentage of the cell cycle spent in each stage. Number of cells in given stage ÷ total number of cells counted × 100 = % of the cell cycle spent in this stage

Part 2: Using your percentages in part 1, create a graph that represents the time spent in each stage of the cell cycle.

Insert Chart [Hint: don’t forget to consider the relationship between your data and the type of chart to best represent your data]

Conclusion:
Be sure to answer the following reflection questions as a summary in the conclusion of your lab report:
Was your hypothesis correct? Why or why not? Be sure to include evidence from the data you collected to support your conclusion.
Based on your data, what can you infer about the length of time spent in each stage of the cell cycle?
What stages were the longest and shortest? Give a brief explanation of why these stages may have that time period.

Questions:
Using what you have learned in the lesson and the virtual lab activity, answer the following questions in complete sentences.
What differences can you see when you compare the nucleus of a dividing cell with that of a non-dividing cell?
If your observation had not been restricted to the tip of the onion root, how would the results be different?

Answers

Answer 1

The distinguishing visible features of each stage of the cell cycle include chromosome condensation, mitotic spindle, equatorial plate and formation of two cells.

What is the cell cycle?

The cell cycle is a series of well-defined steps in the life of a cell that begins with cell growth and end with its division.

The cell division has a series of steps that may be classified according to the phenomena that occur in these phases.

For example, chromosomes condense during the first stage of cell division (prophase), where they migrate to the equatorial plate at metaphase.

In conclusion, the distinguishing visible features of each stage of the cell cycle include chromosome condensation, mitotic spindle, equatorial plate and formation of two cells.

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Related Questions

10 examples of monocot plant and 10 examples of dicot plants

Answers

Answer:

THIS ARE MONOCOT PLANTS EXAMPLES:

Legumes (pea, beans, lentils, peanuts) daisies, mint, lettuce, tomato and oak are examples of dicots. Grains, (wheat, corn, rice, millet) lilies, daffodils, sugarcane, banana, palm, ginger, onions, bamboo, sugar, cone, palm tree, banana tree, and grass are examples of plants that are monocots

THIS ARE DICOTS PLANTS EXAMPLES:

Common examples of dicots include fruits like grapes and apples, trees like chestnut and oak, vegetables like soybean and carrot, and flowers like rose and hollyhock. Dicots differ from monocots (having just one cotyledon) in the seed, vascular structure, flowering, and leaf arrangement.

Answer:

Monocot = Maize Wheat Rice Sugarcane Banana Corn Grass Bamboo Millet Daffodils

Dicot = Pea Beans Lentils Peanuts Daisies Mint Lettuce Tomato Oak Mustard

please help
20 points

77. Select the words from the word box below to complete the statements.

Answers

I think carbon dioxide then sugars

Describe the idea of excited electrons:

Answers

Excited electrons are those which temporarily occupy a state higher than their ground state

The electron is excited if it is given extra energy, such as when a photon, or packet of light, absorbs it or if it collides with an atom.

identify 2 special facts about the spongy parenchyma cell​

Answers

Answer:

1- Parenchyma makes up the chloroplast-laden mesophyll (internal layers) of leaves and the cortex (outer layers) and pith (innermost layers) of stems and roots; it also forms the soft tissues of fruits.

2- The parenchyma remains a living cell at maturity. It is also the most common cell type, performing diverse functions, e.g. photosynthesis, storage, and secretion.

Explanation:

Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat butterflies and moths, yet birds rarely eat the monarchs. Likewise, the monarch caterpillars are brightly striped yellow and white and black, and they also are rarely eaten by birds, although some wasps will attack them and feed them to their young. What can be inferred from these observations?

A. Monarchs must threaten and attack birds, but not wasps.
B. Monarchs have a way of discouraging bird predation that does not involve hiding.
C. Monarchs' wings are so colorful that most birds must find them difficult to eat.
D. Monarchs lay more eggs than other less conspicuous butterflies.

Answers

Answer: it would be B or C but i think its B

Explanation:

which is a step in the process of producing transgenic bacteria

Answers

Answer:

DNA extraction is the first step in the genetic engineering process. In order to work with DNA, scientists must extract it from the desired organism.

Which of the following is a method used to prevent soil depletion? (2 points)
Dune fences
Contour farming
Adding fertilizers
Planting grasses on slopes

Answers

Answer: The answer is B

What is needed for an organism to survive

Answers

Air, water, and food. thinks of us humans for example.

mark me brianliest if I helped! :)

Viruses and bacteria can infect human cells. Bacteria are living organisms, while viruses are not. How do you think the treatment for viral and bacterial illnesses differ? How do you think they affect healthy body cells? Explain your response. NO PLAGIARISM WILL BE REPORTED IF SO.

Answers

Viral infections cause similar symptoms as bacterial infections. Antibiotics treat bacterial infections but do not treat viral infections. Some antiviral medicines are used to treat viral infections.

The misuse of antibiotics to treat a viral infection contributes to antibiotic resistance.

Antibiotics kill bacteria without damaging the body’s cells. They do so by interfering with how bacteria live and reproduce. Normal body cells work in different ways, so they’re not affected.

While antibiotics are effective in treating bacterial infections, they can also damage the immune system when used incorrectly or too frequently. Therefore, the doctor should prescribe antibiotics only when needed and sparingly.

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Explain the difference between afferent and efferent neurons.

will give brainliest

Answers

Answer:

Neurons that receive information from our sensory organs (e.g. eye, skin) and transmit this input to the central nervous system are called afferent neurons.

Neurons that send impulses from the central nervous system to your limbs and organs are called efferent neurons.

Explanation:

Hope this helps you !!

1.) Using the information in the table below, determine the amino acid sequence or get is coded for by the mRNA sequence: AUG-UCU-GAU-UGG-UAC.

2.) What is the start codon? What are the 3 stop codons?

Answers

The amino acid sequence here is Met-Ser-Asp-Trp.  The start codon is AUG, while the three stop codons are UAG, UAA, and UGA.

The triplets of nucleotides or codons in mRNA determine the order of amino acids that will be added to the protein during translation.

The start codon in the genetic code is AUG and it encodes for the amino acid methionine (Met).

The 3 stop codons in the genetic code are UAG, UAA, and UGA. These codons do not code for an amino acid.

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how long does it take from the time beans are planted until they are harvested

Answers

about 65 days after planting

Small aquatic organisms, such as coral, are the producers of the ocean. Please select the best answer from the choices provided T F.

Answers

The marine invertebrates of phylum Cnidaria are called corals. Corals are important as they build reefs in oceans and feed on planktons.

The given statement is :

True

The position of corals can be explained as:

The corals are both a primary producer as well as the consumer.

They take energy from algae through the mutual relation between both organisms. The corals feed on planktons, zooplanktons and phytoplankton for energy so they are consumers.

The algae living in coral make food for them and corals produce oxygen.

Therefore, corals are producers.

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Answer:

T

Explanation:

Edge 2022 , trust the process

manilla and linen are derived from which plants, respectively

Answers

Answer:

flax is a stem fiber that is used to make linen. a smooth shiny fabric made from flax

Answer these questions about making a yogurt.

1) why is the milk pasteurized at the start of the process?

2) Why is the mixture of milk and bacteria incubated at 45 °C?

3) what causes the milk to thicken?

4) why does fermentation eventually stop?

5) Explain how making yogurt is a way of preserving the nutrients from milk.

Answers

It should be noted that milk is pasteurized at the start of the process in order to kill bacteria.

The mixture of milk and bacteria is incubated at 45 °C to kill the bacteria.

The drop in pH causes milk to thicken. Fermentation is stopped when the alcohol concentration rises to a point where it kills the yeast cells.

Lastly, making yogurt is a way of preserving the nutrients from milk as the bacteria ferment the milk thereby turning the lactose sugars to lactic acids.

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if you come across a child with swollen face hands and feet thin upper arms and weak muscles what would you primary advise the parents based on your biology knowledge?​

Answers

Answer:

I will tell them to take care of their child

Explanation:

HOPE IT HELPS!

The condition called ________ is especially dangerous because the ureters or renal blood vessels can become twisted or kinked during movement.

Answers

Answer:

floating kidney

Explanation:

Which of the following is NOT a disadvantage of asexual reproduction?
A. Does not need a mate
B. Little genetic variation
C. Mutations can occur
D. All susceptible disease

Answers

Answer:

A

Explanation:

It is an advantage to not need a mate so the organism doesnt need to spend as long looking for one

Hope that helps

Answer:

A. Does not need a mate

Explanation:

Had to change my answer so nobody got it wrong

HELPP!!! BRAINLIEST OF CORRECT!!!

How can increased genetic variation help some offspring to survive?

Answers

Being passed down those things help them to the fact on offspring inharitence

Which object has the most gravitational pull?

Answers

Answer:

Jupiter, the fifth planet from the Sun, has the strongest gravitational pull because it's the biggest and most massive.

Explanation:

Answer:

Jupiter

Explanation:

which adaptation do ferns, gymnosperms, and angiosperms have that mosses do not have?

Answers

Answer:

pollen and seeds

The adaptation do ferns, gymnosperms, and angiosperms have that mosses do not have they have seeds and pollen for reproduction.

What do mosses not have?

Mosses make up the majority of bryophytic plants. They are small plants with a simple structure, they do not have conducting vessels, flowers and seeds.

Ferns have a vascular system that transports food, water and minerals to the upper parts through hair-like roots. Mosses do not have true roots or a vascular system. Instead, they absorb water and minerals from the soil where they grow.

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8.

Which event will cause a protein to function incorrectly within a cel

А

A decrease in the amount of carbohydrates in the cell lowers the amount of available energy.

B A chemical causes the cell membrane to become more ridged to prevent water loss.

С A cell is exposed to a chemical that increases the rate at which RNA is produced.

An increase in the internal temperature of the cell changes the protein's shape.

Answers

The answer is B hope this helps

In which biological event is chemical energy transformed into mechanical energy?
O muscular movement
O
photosynthesis
O bioluminescence

Answers

Muscular movement is the correct answer

The event in which the chemical energy transformed into mechanical energy is muscular movement. The correct option is A.

What is muscular movement?

Muscles contract and then relax to move body parts. Muscles can pull bones, and yet they can't push them back into position.

As a result, they function in pairs of flexors and extensors. To flex a limb at a joint, the flexor contracts.

We discussed the skeletal system and the gestures that can take place at joints, such as flexion, extension, abduction, inversion, and so on.

These movements are produced by skeletal muscles pulling bones in different directions.

When ATP is hydrolyzed during cross-bridge cycling, chemical energy is converted to mechanical energy during muscle contraction.

As the muscle deforms or performs external work, this mechanical energy is distributed and stored in the tissue.

Thus, the correct option is A.

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Which ratio of surface area to volume is most efficient for a cell?

Answers

Answer:

Smaller single-celled organisms have a high surface area to volume ratio, which allows them to rely on oxygen and material diffusing into the cell (and wastes diffusing out) in order to survive. The higher the surface area to volume ratio they have, the more effective this process can be.

Hope that helps. x

According to Hess’s theory, what might happen if the magma under a mid-ocean ridge cools?

Answers

Answer: The plates on either side of the ridge might stop moving.

Explanation:

Answer:

The plates on either side of the ridge might stop moving.

Explanation:

The Northern Hemisphere has the most hours of daylight at the

Answers

Answer:

summer solstice

fjhkfjkfhklghjlghjkl

Answers

Answer:

lol XD

Explanation:

Describe what happens to the right extra stuff in your body can't use

Answers

Answer:

Excretion-The excretory organs remove these wastes.This process of removal of metabolic waste from the body is known as excretion.

Azotemia-When nitrogen waste products,such as creatinine and urea,build up in the body,the condition is called azotemia.

100 POINTS PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Liar Its only 50 points

Explanation:

Answer:

I agree!! :))

Explanation:

Please help, will give the person who answers all these questions 20 points and will mark brainiest

Answers

Answer:

Yes

Explanation:

Write your question first bro.

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