What is the difference between diffusion and osmosis?
What makes a membrane semipermeable?
What characteristics of a molecule affect whether it can pass through the plasma membrane of a cell?
In the simulation, when protein molecules were evenly distributed on both sides of the membrane, was the solution isotonic, hypertonic, or hypotonic?
Which direction was water flowing?
In the simulation, when protein molecules were more highly concentrated on the inside of the cell than outside of the cell, was the solution isotonic, hypertonic, or hypotonic?
Which direction was water flowing?
Why is it important that the plasma membrane surrounding cells is semipermeable?
What would happen if it were not semipermeable?
1) Diffusion : Is the movement of molecules / ions from a region of higher to lower concentration. It may or may not occur across a semi permeable membrane.

In diffusion there is no challenge involved as it is along the concentration gradient, but in active transport movement of molecules occur against concentration gradient ie; from lower to higher concentration.

2) For active transport, energy is vital for movement, in this case protein molecules function as molecular pumps to enable the cell accumulate glucose/ions, against concentration gradient. Here metabolic energy ATP is required.

3)Facilitated diffusion is a type of passive transport in which ions/molecules cross the semi permeable membrane because permeases present in the membrane facilitate the transport.
Like simple diffusion facilitated diffusion doesn't require metabolic energy and simply occurs across the concentration gradient.

4) Osmosis : is movement of water from hypotonic solution (lower concentration) to hypertonic solution (higher concentration) through a semi permeable membrane.
The cell membrane being permeable to water allows to and from movement of water molecules along the concentration gradient.
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Diffusion is the process of a substance moving from an area of high concentration to an area of lower concentration. Osmosis is a type of diffusion where water moves across a semipermeable membrane still from an area of high concentration of water to an area of lower concentration of water. This corresponds to water moving from an area with a low concentration of solute to an area with a higher concentration of solute.
A semipermeable membrane allows some substances to pass through it.
The plasma membrane of a cell allows small uncharged molecules to pass through it, but not large molecules and not charged ions.
The protein molecules were evenly distributed on both sides of the membrane, so this solution was isotonic.
In an isotonic solution, water moves both in and out of the cell, which was observed in the simulation.
The protein molecules were more highly concentrated on the inside of the cell, so this solution was hypotonic.
In hypotonic solutions, water moves into the cell to help dissolve the higher amount of solute inside the cell, which was observed in the simulation.
A semipermeable cell membrane is important to allow some molecules, like proteins, to be more highly concentrated inside the cell than outside the cell. If the cell membrane were permeable, the molecules on the inside of the cell would exit the cell and be evenly distributed in the cell and in its environment.
If the cell membrane were not permeable at all, the cell would not be able to receive nutrients from its environment.

Diffusion and osmosis has one difference which is the presence of semi-permeable membrane.

Diffusion is the movement of particles from an area of higher concentration to one of lower concentration while on the other hand, osmosis is the movement of particles from a semipermeable membrane.

Cell membrane is selectively permeable which only allows some molecules inside the cell because of its structure. So we can conclude that diffusion and osmosis has one difference which is the presence of semi-permeable membrane.

When protein molecules were evenly distributed on both sides of the membrane, the solution will be isotonic because of the same quantity on both sided. There is no movement of water in the body.

When protein molecules were more highly concentrated on the inside of the cell than outside of the cell, the solution will be hypotonic because of the less amount of water in the body.

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Answer:

- 1). Diffusion is the process of a substance moving from an area of high concentration to an area of lower concentration. Osmosis is a type of diffusion where water moves across a semipermeable membrane still from an area of high concentration of water to an area of lower concentration of water. This corresponds to water moving from an area with a low concentration of solute to an area with a higher concentration of solute.

- 2).

a). A semipermeable membrane allows some substances to pass through it.

b). The plasma membrane of a cell allows small uncharged molecules to pass through it, but not large molecules and not charged ions.

- 3).

a). The protein molecules were evenly distributed on both sides of the membrane, so this solution was isotonic.

b). In an isotonic solution, water moves both in and out of the cell, which was observed in the simulation.

- 4).

a). The protein molecules were more highly concentrated on the inside of the cell, so this solution was hypotonic.

b). In hypotonic solutions, water moves into the cell to help dissolve the higher amount of solute inside the cell, which was observed in the simulation.

- 5).

a). A semipermeable cell membrane is important to allow some molecules, like proteins, to be more highly concentrated inside the cell than outside the cell. If the cell membrane were permeable, the molecules on the inside of the cell would exit the cell and be evenly distributed in the cell and in its environment.

b). If the cell membrane were not permeable at all, the cell would not be able to receive nutrients from its environment.

Plan for holidays and special yearly events with your advertising.
True
False

A person who has type AB blood:

The productivity can be indicated by:

What is the size of the giraffe population?

Which of the following substances can cause atherosclerosis and should be eliminated from the diet for health reasons?
A. butter
B. olive oil
C. liver, kidney or animal organs
D. avocado, liver and kidney

what is a protein that recognizes and responds to a signal

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In respiratory system, most of the dirt/ microbes in the air are trapped by

1. What makes up a phenotype of a plant or animal?

2. What are the genes that produce a phenotype?

3. The study of heredity is called _________________.

4. Who is considered the “father” of genetics?

5. Genes had two copies each. These copies are called ___________.

6. What are Mendel’s 4 findings from his study?

7. The nucleus contains genetic material, or ______. (This is short for _______________________.)

8. How many PAIRS of chromosomes do humans have?

9. True/False: All species have the same number of chromosomes.

10. What are the four kinds of bases that join together in DNA strands?

11. What three people were instrumental in discovering DNA?

12. ___________ _________ make up proteins, and ____________ provide the code to make those proteins.

13. The human genome contains ________________ genes.

14. Describe sequencing.

15. Human DNA is 96% identical to the DNA of ___________________.

16. What are mutations and what do they cause?

17. Adaptations are caused by a ________________ in the DNA of an organism.

18. Describe one way studying genetics of organisms can be beneficial?

19. What are some ethical concerns we have about genetic studies?

How does cytokinesis in plant cells differ from cytokinesis in animal cells?



animal cells form a cell plate



plant cells form a cell plate



plant cells go through the process in reverse



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HELP PLZ
WILL MARK BRAINLIST!!
(EARTH SCIENCE)

1. Which of the following factors made the land a place where the first land plants could thrive? Select the two correct answers.(1 point)

A) abundant sunlight for photosynthesis

B) evolution of animals

C) low levels of oxygen in the atmosphere

D) new, nutrient-rich soil made of cyanobacteria and deteriorating rock

2. Select the 2 correct statements that describe cyanobacteria.(1 point)

A) Cyanobacteria were the first photosynthesizing organisms

B) Cyanobacteria decreased the levels of oxygen in the atmosphere

C) Cyanobacteria have complex cells containing a nucleus

D) Cyanobacteria lived in the ocean

3. Select the correct answer from the list.(1 point)

Increased levels of oxygen in the atmosphere due to photosynthesis caused rates of weathering to ((remain constant, decrease, increase)) which aided in the formation of ((soil, roots, chloroplasts))

Que is in attachment, ans with Explaination.​

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Which statement correctly compares the reactants and products of the two
processes?

The movement of the outer core is
important to life because...

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Which increased age skeletal muscle show?

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What can you conclude about the intermolecular forces in water and ethanol?
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1. solid, liquid and gas
2.Solid can move but gas and liquid is more flexible than solid. Solid has a fixed volume while liquid and gas takes the volume of its container. Solid stays in one place while gas and liquid is flexible.
3.Among the 3 state, solid has a fixed volume while liquid takes the volume of its container. When gas is compressed, it takes the volume of its container likewise.

Difference between chemiosmosis and substrate level phosphorylation?​

Names of living things

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Decreasing the temperature
Decreasing the carbon dioxide
O Increasing the carbon dioxide
Increasing the distance of a plant from a light source

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Quiet eruption
Gentle lava flows
Magma low in silica
High viscosity magma

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Which would be considered true for Quantifier DNA quantification technology:
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2 - relies on fluorescence of reporter molecule following cleavage
3 - relies on 5'- 3' cleavage of probe
4 - relies on 3' - 5' cleavage of probe
5 - uses a probe labelled with a fluorophore and quencher molecule at opposite ends
6 - uses a probe labelled with fluorophore and quencher molecule at same end

Please help I am confused between option (b) and (c)​

Which of the following statements are true about moving water?
I. It can move in waves
II. It has electrical energy
III. It can be used to move objects
O I and II
O I and III
O I, II, and III
O II and III

This is science but I couldn’t find it and no links please

See attachment, please - Biology160

What is the difference between mitosis and meiosis​