Answer:
I don't know how to do this. But I'll explain catalysts using these words as keywords.
Explanation:
Catalysts don't increase activation energy. they lower the activation energy. they are recyclable as they are not consumed in reactions. they accelerate the rate of the chemical reaction.
DNA replication is semiconservative in the sense that is uses one old strand to create a new strand.
Thus, it conserves a strand to create a new item in a sense.
Hope this helps!
Answer:
<u>d. Transport proteins within the membrane serve as a tunnel for molecules to enter the cell.
</u>
<u />
Explanation:
Solutes are typically moved across the cell through either passive or active transport. The cells, surrounded by a bilipid layer or plasma membrane is amphiphlic- its polar, hydrophilic lipid heads face outwards, while their non-polar hydrophobic lipid tails face inwards towards each other.
While lipid-soluble molecules move across the layer easily, it is also difficult for charged and also large molecules to move across its surface, into the cell. Transmembrane channels, <u>embedded within the membrane</u>, help to maintain selective permeability as transport proteins, pores and gated channels. Simple diffusion happens as a method of passive transport in cells through plasma membranes.
The solutes travel through the plasma membrane in the process of diffusion from regions of high concentration to regions of low concentration; this occurs without the use of energy. <u>Molecules moving against their concentration require active transport mechanism to cross the membrane</u>.
Agree
Explanation:
It is very correct that plants cannot walk and animals can't use energy from the sun.
Locomotion is the movement of body from one place to another.
The process by which plants manufacture their food using sunlight is called photosynthesis.
- Plants are fixed, sessile and cannot move about.
- Their root penetrate deep into the earth by which they derive their own nourishment.
- Walking is one attribute of higher animals.
- Manufacturing of food using sunlight is in the exclusive preserve of plants.
learn more:
Photosynthesis brainly.com/question/4216541
#learnwithBrainly
