Is it possible to have a cell without a membrane?

Answers

Answer 1

Answer:

Without the cell membrane, any chemical would be allowed to enter. Membranes are very important because they help protect the cell. Materials move across the membrane by diffusion. Diffusion is the movement of oxygen, nutrients, and other molecules.

Explanation:


Related Questions

Which of the following would be the correct classification for the soil and earth material in the most productive aquifer?

low porosity, high permeability
high porosity, high permeability
low porosity, low permeability
high porosity, low permeability
Please help ASAP
(50 points if you help FAST)

Answers

Answer:

B. high porosity, high permeability

C. low porosity, low permeability

Explanation:

Which type of energy pyramid can be inverted?


A) pyramid of numbers

B) pyramid of biomass

C) pyramid of energy

D) pyramids of numbers, biomass, and energy

Answers

Answer:B

Explanation:

Answer:

The correct answer is D

Explanation:

If a cell's organelle worked in an actual human factory and had the role of the electric generator, which organelle would it be?

Answers

Answer: mitochondria

Explanation:

An electric generator produces energy to do work. A mitochondria produces ATP to power the cell.

Which phrase describes organisms that formed index fossils?
(a) Are extinct
(b) Had soft parts
(c) Were generally large
(d) Lived in a narrow geographic area​

Answers

Answer:

A.) Are extinct

You should mark me brainliest because I think I'm cool

Options (1), (2), and (4)

Index fossils are usually defined as those fossils that were present on earth for a very short period of time. They were very broadly distributed in almost all parts of the world. They were comparatively smaller in size and comprised of hard parts that were preserved under favorable conditions which are found at many places in the present. These are extinct species. For example, trilobites and ammonites.
These index fossils are very useful because it helps in determining the age of the fossils as well as rocks by applying the radioactive dating method.
thus, the correct answers are options (1), (2), and (4).

if an atom has seven electrons how many are located in the second energy level

Answers

Answer:

8 are locacted in the 2nd engery level.

“I have been trying to get the population of a fish pond to 80 for 3 hours”

This is a question my friend is asking, if someone could quickly answer by today that would be greatly appreciated :]

Answers

Answer:

[tex]well, \: i \: think \: your \: friends \: get \: rate \\ \: is \: \frac{80 \: p}{3 \: hrs} = 26.67 {p(hrs)}^{ - 1} [/tex]

What is the distance and the displacement of the race car drivers in the
Indy 500?*
A.0m,0m
B.500m,500 m north
C.500m, 0m

Answers

Answer:

Distance is 500 m and displacement is 0.

Explanation:

Distance traveled by an object is equal to the total path covered during the entire journey. Displacement of an object is the shortest path covered.

In this case, we need to find the distance and the displacement of the race car drivers in the  Indy 500 m race in a circular path.

In a race, the object must reach the initial position after some time. It means that the final and the initial position is the same. As a result, the shortest path covered i.e. displacement of the car is equal to 0. On the other hand, total traveled distance is 500 m.

Carbon monoxide has ____ of oxygen.

zero atoms
one atom
two atoms

Answers

It might be 2 I'm not sure

Answer:

carbon monoxide (CO)

1 oxygen atom

Proteins build up, maintain and replace the tissues in your body.

true false

Answers

Answer:

True

Explanation:

Protein provides energy and supports your mood and cognitive function. It's a vital nutrient required for building, maintaining, and repairing tissues, cells, and organs throughout the body.

What challenges do Arctic areas face as a result of global warming? 2) What measures could help deal with the problem? 3) What do you predict will happen to Arctic ecosystems if no measures are taken to reverse the problem of global warming? Explain your reasoning. 4) Which measures do you think are most important to pursue?

Answers

Answer:

Global warming is defined as the environmental issue that leads to long term heating of the earth due to human activities such as burning of fossil fuels.

1. Arctic areas are facing huge challenges due to global warming that includes rising sea levels, rapid melting of ice,  loss of fish stocks, birds and marine mammals, and changes in climate patterns.

2. Measures that help to deal with the problem are reduction in the use of hydrofluorocarbons, cutting emissions of black carbon, methane, reduce overfishing, and reduction of industrial waste.

3. If there will be no measure taken to reverse the problem of global warming in the Arctic ecosystem, it will cause flood and tsunami in the nearby continents due to the rapid melting of ice, changes in climate patterns, and lead to the extinction of many marine animals.

4.  Reduction of industrial waste is the most important measure to pursue because industrial waste contributes most of the greenhouse gases and causes air pollution, land pollution, water pollution, and nuclear pollution. So reduction is industrial waste will reduce the emission of harmful gases in the environment that can reduce the impact of global warming.

A blank is an example of a prokaryotic cell

Answers

Answer:

Bacteria

Explanation:

Answer:

Bacteria

Explanation:

Bacteria is the most common prokaryotic cell. Hope this helps!

ASAP PLEASE

How are photosynthesis and cellular respiration related?
Group of answer choices

The products of photosynthesis are the reactants of cellular respiration.

The reactants of photosynthesis are the reactants of cellular respiration.

The reactants of photosynthesis are the reactants of cellular respiration.

The products of photosynthesis are the products of cellular respiration.

Answers

The answer is the first one :)

Answer:

The answer is The products of cellular respiration are the same as the reactants of photosynthesis.

Explanation:

because they have the same reactants

How does the analogy contrast to the cell wall ?

Answers

Answer:

An analogy for the cell wall is that thecell wall is like an outer wall along a castle (enclosed compound). The cell wall is a rigid outer barrier.

Explanation:

please mark as brainlist answers

Why do scientists try to repeat other scientists’ experiments?
to test if the instruments in their labs are working properly
to practice following the procedures
to try to improve the first scientist’s work
to see if the original results are reproducible

Answers

Answer:

d) to see if the orginal results are reproducible.

what happened as a result of over hunting whales

Answers

Everyone died snake kappa mf f d

PLS HELP FAST!!!! You have a natural-gas (methane, CH4) stove. When you ignite a natural-gas stove, the methane reacts with oxygen (O2) to produce carbon dioxide and water vapor. Write a balanced equation for this reaction, and be sure to show your work. (6 points)

Answers

Answer:

Methane (CH4) ( C H 4 ) burns in oxygen to produce carbon dioxide and water vapor. The balanced equation is: CH4+2O2→CO2+2H2O C H 4 + 2 O 2 → C O 2 + 2 H 2 O .

Explanation:

The balanced equation for the reaction of methane with oxygen is CH₄ + 2O₂→CO₂ + 2H₂O.

What is methane?

Methane is a gas and a chemical compound with formula CH₄. It is a colorless and odorless gas and very flammable. It is made up of carbon and hydrogen. Methane comes under greenhouse gas.

As it is highly reactive, it reacts with the gases present in the environment.  Here, methane is reacting with oxygen. When one molecule of methane reacts with two molecules of oxygen, it produces carbon dioxide and two molecules of water.

The reaction happens in the presence of heat and high temperature. The balanced reaction is written when the same number of moles are present on both sides of the reaction.

CH₄ + 2O₂ → CO₂ + 2H₂O.

Thus, the balanced equation for the reaction CH₄ + 2O₂→CO₂ + 2H₂O CH₄ + 2O₂ → CO₂ + 2H₂O.

To learn more about methane, refer to the link:

https://brainly.com/question/2232085

#SPJ6

What happens when energy is released from ATP?

1, ATP adds a phosphate

2, ATP completely breaks apart

3, ATP loses all three of its phosphates

4, ATP loses the 3rd phosphate

Answers

4. Atp loses the 3rd phosphate. Hope this helps!

What would happen if the enzyme used for cellular respiration or photosynthesis to break after a few cycle? Why?

Answers

Answer:

Please mark as brainliest!!!

Explanation:

Cells face a related problem when they break down fuels, such as glucose, to produce ATP. If the cell’s supply of ATP is low, it would do well to break down glucose as quickly as possible, replenishing the ATP it needs to “keep the lights on.” If the supply of ATP is high, on the other hand, it might not be such a good idea to oxidize glucose at top speed. ATP is an unstable molecule, and if it sits around in the cell too long, it’s likely to spontaneously hydrolyze back to ADP. This is like the case of the melted ice cream sandwich: the cell has spent glucose to make ATP, and that ATP ends up going to waste.

It’s important for a cell to carefully match the activity of its fuel breakdown (pathways to its energy needs at a given moment. Here, we'll see how cells turn cellular respiration pathways “up” or “down” in response to ATP levels and other metabolic signals.

Lawrence is a long distance runner on the school’s track and field team. Proper nutrition is very important for athletes so Lawrence wants to make the right food choices before a big track meet.



Given what you know about how food is broken down to provide energy in the body, which is the best choice for Lawrence to eat before his event?

a supplement bar that provides 500 Calories composed of complex sugars
a candy bar that provides 500 Calories composed of simple sugars
a protein shake that provides 500 calories composed of complex sugars
a fruit smoothie that provides 500 calories of simple sugars

Answers

Answer:

a supplement bar that provides 500 Calories composed of complex sugars

Explanation:

Got it right on edge

an elk eats grass. a grizzly bear eats the elk. this is an example is a ____.

A. pyramid of numbers
B. succession
C. food chain
D. food web

Answers

Answer: Should be food web if its not food chain

Explanation:

i need help with this,
it’s for biology

Answers

Explanation:

this is your answer

I hope it is clear

Answer: This is the REAL answer smh

Explanation:

Scientists have a theory about the relationship between climate and biodiversity. Which best describes this theory?

Warmer climates promote higher biodiversity, allowing plants to grow year-round. This supports more organisms that rely on plants.
Colder climates promote higher biodiversity, reducing the competition among organisms for food. This supports stronger organisms that live longer.
Warmer climates promote higher biodiversity because they tend to receive more rainfall. This provides a source of water for more organisms.
Colder climates promote higher biodiversity because they are usually larger in size. This provides space for more organisms.

Answers

Answer:

c

Explanation:

"warmer climates promote higher biodiversity because they tend to receive more rainfall. This provides a source of water for more organisms."

Answer:

The correct answer is A

What would happen if the squirrel population were eliminated

Answers

It would disrupt the food chain

According to natural selection theory, Different species occupying the same habitat will adapt to that habitat by undergoing the same genetic changes Adaptations beneficial at one time should generally be beneficial during all other times Well-adapted individuals have more offspring, and thus contribute more to the next generation's gene pool, than do poorly adapted individuals. Adaptations beneficial in one habitat should generally be beneficial in all other habitats

Answers

Answer:

The most correct statement is - Well-adapted individuals leave more offspring, and thus contribute more to the gene pool, than poorly adapted individuals.

Explanation:

Adaption in natural selection is a species, time-specific, and habitat-specific process. So, it means if a species is adapted to genetic changes in a particular habitat, it is not necessary that all other species also adapt to similar genetic changes.

Similarly, if a species has beneficial adaption for a particular habitat, it is not necessary it will be beneficial for the other habitat as well.

Thus, natural selection leads to the well-adapted individual that leave more offspring and contribute more to the gene pool.

Which of the following statements about symbiotic relationships is true?
In mutualism, neither organism benefits.
At least one organism benefits from commensalism.
In parasitism, both organisms are harmed.
Both organisms benefit from commensalism.

Answers

Answer:

At least one organism benefits from commensalism.

Explanation:

The symbiotic relationship of commensalism is when one organism benefits and the other organism receives neither benefit nor harm.

So, this statement is true, because at least one organism has to benefit from the relationship, while the other will not be harmed or helped.

help what goes where help asap will try to mark brainliest!!​

Answers

Go from the bottom of the food chain to the top, the grass is eaten by herbivores, the bird and frog eat insects, and the snake is a carnivore and eats the other animals.

If star A is red and star B is blue which star is brighter

Answers

Answer:

Star A

Explanation:

Although blue stars are hotter, red stars go through nuclear fusion faster than blue stars, which makes them give off more light :)

There is an enzyme in your stomach. Explain how the enzyme would be affected if it was moved
the small intestines.

Answers

Answer:

It might not work as efficiently because the conditions are different

Explanation:

The stomach is highly acidic compared to the small intestine. That means the pH is higher in the small intestine. Stomach enzymes are adapted to work at low pH, but might not work at a higher pH as in the small intestine. They might not be able to efficiently catalyze reactions in the small intestine.

Which of the following substances increases in amount during the cellular respiration of glucose?

Select one:
a. O2
b. NADH
c. ADP
d. Glucose

Answers

The answer is letter C. ATP

Which statement is true?
O A. Opinions can be scientifically tested.
OB. Scientific theories are absolute and cannot be changed.
OC.
Scientists have learned all they'll ever know about science.
OD.
Facts can be scientifically tested.

Answers

Answer: D. Facts can be scientifically tested.

Other Questions
what expression is equivalent to -0.2-4.9? What is the frequency of a wave having 4.90 x 10 -12 J of energy? advantages of modernization Suppose you receive at the end of each year for the next three years. a. If the interest rate is , what is the present value of these cash flows? b. What is the future value in three years of the present value you computed in (a)? c. Suppose you deposit the cash flows in a bank account that pays interest per year. What is the balance in the account at the end of each of the next three years (after your deposit is made)? How does the final bank balance compare with your answer in (b)? why is understanding analogy important in our lives What does quality of life mean? Do you think everyone has quality of life? Explain your reasoning in 3-5 sentences. answer the questionsdont answer if u dont know ASAP PLEASEHow are photosynthesis and cellular respiration related?Group of answer choicesThe products of photosynthesis are the reactants of cellular respiration.The reactants of photosynthesis are the reactants of cellular respiration.The reactants of photosynthesis are the reactants of cellular respiration.The products of photosynthesis are the products of cellular respiration. HELP ME ASAP BRO THIS IS DUED BY TONIGHT, LITERALLY ANYONE OUT THERE Show Work PleaseeeeWhat is the m< BAD? ( If you are confused look at the picture provided) (4x5)3Using the exponential notion and simplify pls _________ Indians were skilled hunters of small animals. A. Athabascan B. Prehistoric C. Archaic D. Paleolithic Please select the best answer from the choices provided A B C D write letter to your brother describinf about discipline Find the mean of these numbers:2,57, 38, 42,6 4j+2=h solve for j please help Express the number 7,980 in scientific notation. ANSWER ASAP PLEASE!!What determines how many of each ion is required for an ionic compounds?please do not look up on google!!!! 7+7 please help me i need help quick right away Major League Bat Company manufactures baseball bats. In addition to its work in process inventories, the company maintains inventories of raw materials and finished goods. It uses raw materials as direct materials in production and as indirect materials. Its factory payroll costs include direct labor for production and indirect labor. All materials are added at the beginning of the process, and conversion costs are applied uniformly throughout the production process. Required: You are to maintain records and produce measures of inventories to reflect the July events of this company. The June 30 balances: Raw Materials Inventory, $22,000; Work in Process Inventory, $9,690 ($2,810 of direct materials and $6,880 of conversion); Finished Goods Inventory, $140,000; Sales, $0; Cost of Goods Sold, $0; Factory Payroll Payable, $0; and Factory Overhead, $0. 1. Prepare journal entries to record the following July transactions and events. Purchased raw materials for $130,000 cash (the company uses a perpetual inventory system). Used raw materials as follows: direct materials, $52,540; and indirect materials, $11,500. Recorded factory payroll payable costs as follows: direct labor, $206,000; and indirect labor, $26,500. Paid factory payroll cost of $232,500 with cash (ignore taxes). Incurred additional factory overhead costs of $83,000 paid in cash. Allocated factory overhead to production at 50% of direct labor costs. 2. Information about the July inventories follows. Use this information with that from part 1 to prepare a process cost summary, assuming the weighted-average method is used. (Round "Cost per EUP" to 2 decimal places.) Units Beginning inventory 6,500 units Started 14,000 units Ending inventory 8,000 units Beginning inventory MaterialsPercent complete 100 % ConversionPercent complete 80 % Ending inventory MaterialsPercent complete 100 % ConversionPercent complete 30 % 3.Using the results from part 2 and the available information, make computations and prepare journal entries to record the following: Total costs transferred to finished goods for July. Sale of finished goods costing $273,200 for $640,000 in cash.Using the results from part 2 and the available information, make computations and prepare journal entries to record the following: Total costs transferred to finished goods for July. Sale of finished goods costing $273,200 for $640,000 in cash. Using the results from part 2 and the available information, make computations and prepare journal entries to record the following: Total costs transferred to finished goods for July. Sale of finished goods costing $273,200 for $640,000 in cash. i am too unmotivated to do any math even if its easy please help :) Simplify the expression. (6x+1/2)+(3x-3 1/2)