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Delicious77 [7]
3 years ago
5

A cell uses active transport to move molecules across a cellular membrane when

Biology
2 answers:
AleksAgata [21]3 years ago
4 0

Answer:

In cellular biology, active transport is the movement of molecules across a membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement. There are two types of active transport: primary active transport that uses adenosine triphosphate (ATP), and secondary active transport that uses an electrochemical gradien

Explanation:

I got it off wikepedia :/

Paul [167]3 years ago
3 0

Answer:

A cell uses active transport to move molecules across a cellular membrane when the molecules are being moved against a concentration gradient.

Please mark me the brainliest

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The health of coral reefs depend on several factors. One is clean water. Erosion on land causes rivers to dump mud on reefs, smo
snow_lady [41]

Answer:

D) When corals are babies floating in the plankton, fish swim with them and protect them from harm.

Explanation:

This is the statement that does not explain how fish and coral relate to one another. It is false that when corals are babies, fish swim with them and protect them. However, the rest of the statements are true. It is true that fish eat predators, and that they also eat seaweed and kelp that could smother the coral. Finally, it is also true that some fish live symbiotically with coral, luring prey for the coral to kill and eat.

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3 years ago
Adherens junctions ______________________. (a) can be used to bend epithelial sheets into tubes. (b) are most often found at the
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Answer:

(a) can be used to bend epithelial sheets into tubes.

Explanation:

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I hope you find this information useful and interesting! Good luck!

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3 years ago
What type of cell must contain a mutation for it to be passed down from women to offspring?
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5 0
3 years ago
Several biology students are counting kernels in an ear of corn. They count a total of 420 kernels: 242 purple wrinkled, 84 purp
s2008m [1.1K]
The answer is C) 9:3:3:1

This looks like a dihybrid cross where the expected phenotypic ratio is 9:3:3:1. However, in nature, the numbers cannot be absolut. Let's check it out:
242 purple wrinkled
84 purple smooth
70 yellow wrinkled
24 yellow smooth

Divide all by the smallest number:
242 purple wrinkled / 24
84 purple smooth / 24
70 yellow wrinkled / 24
24 yellow smooth / 24

We have 
10.1 purple wrinkled which is near to 9
3.5 purple smooth which is near to 3
2.9 yellow wrinkled which is near to 3
1 yellow smooth
6 0
3 years ago
Read 2 more answers
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