What do the results of the agar blocks indicate about the relationship between cell size and time for materials to reach the center of the cell?




Include an explanation of how the surface area-to-volume ratio, diffusion rate, and time for substances to reach the center are related. Support your explanation with data.


PLZ HELP!!! 50 points!!!

Answers

Answer 1

There is inverse relationship between cell size and time to reach the center.

Cell size has a inverse relationship with the time that the materials needed to reach the center of the cell because if the cell size increases more time is required for a material to reach to the center of the cell due to more distance between the center and boundary of the cell. The surface area-to-volume ratio, diffusion rate, and time for substances to reach the center are related to each other.

If the surface area to volume ratio is higher than more materials can diffuse across the membrane of the cell but more time is required to reach the center because increase in cell size leads to more distance between center and boundary of the cell so we can conclude that there is inverse relationship between cell size and time to reach the center.

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Answer 2

Answer:

Explanation: If the surface area to volume ratio is higher than more materials can diffuse across the membrane of the cell but more time is required to reach the center because increase in cell size leads to more distance between center and boundary of the cell so we can conclude that there is inverse relationship between cell size and time to reach the center.


Related Questions

Pleas help help needed
An analogy makes a comparison between objects based on their similar qualities. Cassidy wanted to create an analogy for the motion of atoms in solids, liquids, and gases, so she compared them to marbles in a tray.


Which best compares the phases of matter to marbles in a tray?


A solid is like the tray being shaken and the marbles moving around it, and a liquid is like the tray being shaken slowly and all the marbles moving in their positions.

A solid is like the tray being shaken slowly and all the marbles moving in their positions, a liquid is like the tray being shaken and the marbles moving around it, and a gas is like the tray being shaken hard and the marbles moving vigorously around it.

A gas is like the tray being shaken slowly and all the marbles moving in their positions, and a solid is like the tray being shaken hard and the marbles moving vigorously around it.

A liquid is like the tray being shaken hard and the marbles moving vigorously around it, and a gas is

Answers

Answer:

A solid is like the tray being shaken slowly and all the marbles moving in their positions, a liquid is like the tray being shaken and the marbles moving around it, and a gas is like the tray being shaken hard and the marbles moving vigorously around it.

Answer:

B). A solid is like the tray being shaken slowly and all the marbles moving in their positions, a liquid is like the tray being shaken and the marbles moving around it, and a gas is like the tray being shaken hard and the marbles moving vigorously around it.

Explanation:

What is the main function of this organ

Answers

Answer:

In an organ, different tissues work together to carry out a particular function. These are the main organs, as well as their primary function: The brain controls thoughts, memory and other organs. The heart pumps blood around the body.

ATP can convert to ADP during ___________.

Answers

Answer:

phosphorylation

Explanation:

ATP usually releases energy by breaking down the weak phosphate cell present.  The energy released due to the breaking down of the phosphate cell is then utilized. The ATP is converted to ADP. Whenever a cell feels the necessity for energy it releases a phosphate to gather the energy. It is an automatic and ongoing process. The weak bond between the second and the third phosphate is always targeted for turning ATP to ADP. This is the reason ATP is considered the main energy currency for the cell.

Answer:

phosphorylation

Explanation:

Thats just it

Use the food web to answer the following questions.​

Answers

Answer:

1 : 2

2: Primary consumer

3:yes

4:yes

Explanation:

hope this helps

guys please help
Question 11 Part A)

Make sure to sure me your work.

Answers

Answer:

95%

Explanation:

190 is 95% of 200.

The comparison of input versus output is also 95%


Why must the bonds of these molecules be broken before anything else happens?

Answers

Answer:

Synthesis releases energy because the molecules bond to form a stable configuration and therefore give up energy. The bonded molecules have a lower energy level than free molecules and are held in the new bond.

Explanation:

Chemical reactions make and break the chemical bonds between molecules, resulting in new materials as the products of the chemical reaction. Chemical reactions can occur spontaneously or require an outside trigger such as an input of energy. Breaking chemical bonds absorbs energy, while making new bonds releases energy, with the overall chemical reaction being endothermic or exothermic.

Because molecules must link together to establish a stable structure, they lose energy during synthesis. The newly formed bond holds the bonded molecules, which are at a lower energy level than free molecules.

Why the bonds of molecules are broken?

Because molecules must link together to establish a stable structure, they lose energy during synthesis. The newly formed bond holds the bonded molecules, which are at a lower energy level than free molecules.

Chemical reactions create and destroy the chemical bonds that hold molecules together, creating new materials as their end product. Chemical reactions can start on their own or need an outside trigger, like an energy input. Chemical reactions can be endothermic or exothermic in that breaking chemical bonds takes energy while creating new ones releases it.

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Milk sugar is a good source of;
A)galactose
B)glucose
C)fructose

Answers

The correct answer is glucose!

Which of the following processes produces the most ATP? a aerobic respiration b glycolysis c alcoholic fermentation d lactic acid fermentation

Answers

Answer:

b) glycolysis

Explanation:

Up to 36 ATP can be produced from one glucose molecule through aerobic reactions. Therefore, option (A) is correct.

What is aerobic respiration?

Aerobic respiration supplies energy to fuel all cellular functions. The reactions result in the production of ATP, which can then be put to use to power other life-sustaining processes, such as growth, repair, and maintenance.

The release of energy that was stored in carbohydrates and lipids during photosynthesis and the subsequent availability of that energy to living organisms is the purpose of the series of enzyme-controlled events known as aerobic respiration.

Glycolysis, the Krebs cycle and respiratory electron transport contribute to the production of 36 ATP for every molecule of glucose that is used up during aerobic cell respiration.

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What is the main function of vacuoles?

Answers

Vacuole, in biology, a space within a cell that is empty of cytoplasm, lined with a membrane, and filled with fluid. Especially in protozoa, vacuoles are cytoplasmic organs (organelles), performing functions such as storage, ingestion, digestion, excretion, and expulsion of excess water.

When an atom loses an electron, it becomes a?

Answers

when it loses an atom it becomes an ion
It becomes a positive ion . Eg Na lost 1 electron to form Na+ . Vive verca , if an atom gains an electron it becomes negative

Why does PE = mgh equal PE = Fw h ?

Answers

Answer:

Why is potential energy MGH?

Potential energy is energy an object has because of its position relative to some other object. ... For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.

Explanation:

Yes Yes Yes Yes Yes Yes

Bacteria and fungi are examples of a group of consumers called

Answers

Answer:

Bacteria and fungi are examples of a group of consumers called Decomposers

Explanation:

Bacteria and fungi are the organisms which are examples of a group of consumers called the decomposers. These are herbivores which are dependent upon the dead and decay material for their nutrition.

What are Consumers?

Consumers are the group of organisms which cannot synthesize their own food and hence depends upon some other organism for their nutritional requirements.

Consumers are classified further on the basis of their nutritional requirements such as herbivores, carnivores, omnivores, etc. Bacteria and fungi are the examples of decomposers which feed upon dead and decay matter for nutrition. These belong to the Kingdom Monera, Protista, and Fungi and the highest tropic level in the food chain of an ecosystem.

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All human body cells contain 46 chromosomes. However, sperm cells in men and egg cells in women have only 23 chromosomes. This is due to meiosis. How does meiosis accomplish the reduction in chromosomal number?

Answers

Answer:

Two cell divisions after DNA replication

Explanation:

After the DNA is replicated, the cell undergoes two rounds of meiosis to produce 4 cells, each wIth 23 chromosomes. This is how the cell goes from a diploid to a haploid state.

Identify minerals extracted in Haiti
and describe what is done with
them.

Answers

Answer: Haiti is mainly know for their minerals! the main minerals extracted are: cooper, silver, and GOLD. Haiti has many many gold farms, markets, etc. HOWEVER this is a very poor area, as people here live off of only about 2 dollars per day. They could take this wealth and put it towards the people, roads, and construction, as they had an earthquake that killed many many people, and destroyed much. If you mean what they do with gold, they take the gold from farms, and mine it underground. They then sell it for money as this is a poor area as said before!

Explanation: I hope this helps! please let me know and have a great night! :)

Which student, if either, is most correct in their claim regarding the ATP/ADP cycle?

A. Brianna's claim is correct - the removal of a phosphate group (or the breaking of
a chemical bond) supplies a great deal of energy from the cell and the ATP/ADP process is not continuous.

B. Neither student is completely correct. Oscar is correct in that this process is a
cycle and Brianna is correct in that the removal of the phosphate group supplies the most energy

C. Oscar's claim is correct - the addition of a phosphate group (or the making of a
chemical bond) supplies a great deal of energy from the cell and the ATP/ADP
cycle is continuous.

D. Both students are correct - Oscar's claim is correct for the process of
photosynthesis and Brianna's claim is correct for the process of cellular
respiration.

Answers

Answer:

A

Explanation:

because it is the the ATP/ ADP does not process which is true.

10.
5. Which of the following would you not find in an
animal cell?
a. Phospholipids
b. Endoplasmic reticulum
c. Nucleoid
d. Mitochondria

Answers

Phospholipids are not in the animal cell
The answer is C. Plant cells only have there genetic material in a nucleoid region while animal cells have a membrane bound nucleus

A _ _ _ _ _ _ _ _ _ _ _ _ _ is a small particle consisting of RNA or DNA enclosed in a protein coat.
anyone knows the answer? :(

Answers

Answer:

Virus

Explanation:

Viruses are made up of nucleic acids (DNA or RNA) surrounded by a protein coat. They are smaller than the smallest bacterium. Viruses consist of nucleic acid (genetic material) surrounded by a capsid (protein coat).

1. Changing environmental conditions, such as temperature or pH, can affect enzyme shape. How would this alter the enzyme's function?

Answers

Answer:

It may cause the enzyme to stop working by overheating the enzyme

Explanation:

what else is needed to make glycine (amino acid) from a molecule of glucose? Where do you think that comes from

Answers

Answer:

certain amino acids are made of different things but heres overall                                  carbon hydrogen oxygen and nitrogen

Explanation:

To make glycine ( amino acid ) from glucose ; Oxygen, carbon, hydrogen and nitrogen  is needed  They come from the consumption of Protein-rich food and from respiration

Glycine is a naturally occurring/formed amino acid found in humans, the difference between glycine and other amino acids is that it can be found in parts of protein structures in humans and can also be found in several foods consumed by humans like Sugar Cane, meat , and dairy products. glycine also has a hydrogen side chain which is absent in other amino acids.

Hence we can conclude that To make glycine ( amino acid ) from glucose ; Oxygen, carbon or hydrogen  is needed  and they come from the consumption of Protein-rich food and from respiration.

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A gas station has been robbed. The crime scene investigators arrived at the crime scene with forensic lamps to seek latent fingerprints of the
perpetrator. Which technique will they use to find latent fingerprints?
A absorption technique
B. Infrared technique
C fluorescence technique
D. oblique technique

Answers

Fluorescence technique

Answer:

Fluorescence technique

Explanation:

I need help with these it’s due 2 o’clock today. Thanks!

Answers

wow that a lot ill get my friend on it.

a food web is a diagram of feeding relationships that includes multiple intersecting food___. (blank)

Answers

Answer:

chains

Explanation:

a food web is a diagram of feeding relationships that includes many intersecting food chains.

Which organelle provides support for the cell and may also help the cell move?
Cell Membrane
Cytoplasm
Cytoskeleton
Ribosome

Answers

Cytoskeleton because it maintains cell's shape, secures organelles in specific positions, allows cytoplasm and vesicles to move within the cell

Which of the following describes an example of molecular movement across a membrane
through active transport?
O Channel proteins bind with extracellular solutes and release them inside the cell.
O Hydrocarbons enter the cell by dissolving in the lipid bilayer of the membrane.
Proton pumps move hydrogen ions out of the cell against a concentration gradient.
O Vesicles carrying waste products fuse with the membrane during endocytosis.

Answers

Hydrocarbons enter the cell by dissolving in the lipid bilayer of the membrane.

The following information should be considered;

The example of molecular movement across a membrane should be the Hydrocarbons that should enter the cell.It should be entered via dissolving the lipid bilayer.

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What process best explains how a nerve cell and a muscle cell can both
develop from the same fertilized egg?
O A. differentiation
O B. natural selection
O C. selective breeding
O D. genetic engineering
Need ASAP!

Answers

Answer:

Im pretty sure its A.

Explanation:

=just took the teskst

Answer:  The correct answer is A. differentiation

Explanation:  Confirmed correct.

Students had two batteries and two different resistors. During four trials, they build four different circuits and plan to measure the circuit's
current in Amps according to the following table.
Trial Number
Current (A)
Voltage (V)
1.5
1
Resistance (2)
200
100
2
1.5
3
3.0
200
4
3.0
100
For which trial would the students measure the smallest current in the circuit?
O A Trial 1
OB Trail 3
C Trail 4
D Trail 2

Answers

Answer: It not Trial 2 nor Trial 4

Explanation:

Trust me :)

b) Describe the role of the digestive enzymes and the factors that affect their function (1 points)
HINT: Think about the effect of enzymes on large macromolecules and what causes enzymes to
change

Answers

Answer:

The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion. An enzyme's shape is tied to its function. Heat, disease, or harsh chemical conditions can damage enzymes and change their shape.

Explanation: hope this helped

James is conducting an experiment to test the effect of insecticides on frogs. He gives one group of frogs 10 cc of the insecticide and 0 cc of the insecticide to the other group of frogs. After 5 days, the effects of the insecticide are collected. what is the independent variable and dependent variable

Answers

Answer:

Independent variable: amount of insecticide

Dependent variable: effects of insecticide on frogs

Explanation:

Dependent variable in a research experiment, is the variable that is being studied, tested and measured by the researcher, while the independent variable is the variable that causes the dependent variable to change, when it is varied.

In this case, the amount of insecticides that is varied in quantity, is the independent variable that the researcher manipulates, while the independent variable is the effects caused by these varied amount of insecticide on frogs, which is tested and measured.

predict the likely effect on the ability of substance L to enter the cells if substance L is attached to a large protein

Answers

Full Question Attached

Answer:

The substance would be less likely to enter the cell by active transport or might enter more slowly

Explanation:

The information in the question suggests substance L is moving into the cell by active transport. We can tell this because the concentration of substance L inside the cell is 120 mM. However, the substance is still entering the cell from a lower to a high concentration, against its concentration gradient. This requires energy and is therefore active transport.

If there was a large protein attached, the active transport machinery might not be able to move substance L at the same rate. The rate it enters the cell might slow down, or it might stop all together. It might need to enter via another mechanism, such as endocytosis.

When Alfred Wegener first noticed that the continents fit together like puzzle pieces, this was

Answers

Answer:

- the discovery of the Pangaea Theory.

In 1912 Alfred Wegener (1880-1930) proposed that the continents were once compressed into a single protocontinent which he called Pangaea (meaning "all lands"), and over time they have drifted apart into their current distribution.

The east coast of South America and the west coast of Africa seem to fit together like pieces of a jigsaw puzzle, and Wegener discovered their rock layers “fit” just as clearly. South America and Africa were not the only continents with similar geology. Most all of the other continents fit together too.

Answer:

discovery of the Pangaea Theory.

Explanation:

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