If I remember correctly, there are two main types of transport—passive and active. Passive transport does not require energy or ATP, whereas active transport does.

Types of passive transport include diffusion and osmosis, both of which involve moving down a concentration gradient and thus not requiring energy.

Active transport moves up the concentration gradient and does require energy.

Perhaps someone who has taken bio within the last several years can correct anything I might have misstated here.

6 0

3 years ago

The crispr system involves the cas9 enzyme, which identifies specific nucleotides to be cut using a(n) ________ molecule as a gu

bonufazy [111]

Answer:

RNA

Explanation:

CRISPR system was discovered by a Japanese scientist. Naturally bacteria and many other prokaryotes have CRISPR system in their genome which they use as a self defense against a pathogen which is invading them. It consists of inter spaced, short palindromic nucleotide repeats which encode a guide RNA (gRNA). This guide RNA (gRNA) recognizes the target sequence on the pathogen. The gRNA is followed by Cas9 enzyme which along with the gRNA plays a very important role in breaking genome of the pathogen. Once the target gene is cut down the rest of the DNA can be rejoined by non homologous end joining.

But nowadays, scientists are using this system for genome editing and incorporating desired gene between the two ends which are cut down by CRISPR Cas9 system.

7 0

3 years ago

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A venus flytrap closes around a small insect. which life characteristic does this illustrate?

Anna007 [38]

Response to a stimuli.

8 0

3 years ago

Identify predator and prey

Fudgin [204]

Predator is what hunts and prey is what is hunted! May I get brainiac

8 0

3 years ago

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