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3 years ago

The movement of ions or molecules across a cell membrane from an area of lower concentration to

Biology

2 answers:

valina [46]3 years ago

6 0

D. Active transport

denpristay [2]3 years ago

3 0

Answer:

active transport

Explanation:

i just took the quiz

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Monosaccharides can be grouped as aldehydes and kefone groups,what is their difference and similarities and list four examples f

Lady bird [3.3K]

Answer:

Aldehyde has C=O bonded to atleast one H atom while Ketone has C=O bonded to two carbon atoms

Aldehyde - galactose, glucose, glyceraldehyde, fructose

Ketone - Trioses, Tetroses, Pentoses, Hexoses

Explanation:

Similarity

Both the aldehyde and ketone have C=O group

Difference

In aldehye the C=O group require atleast one hydrogen atom or the functional group in aldehyde is -CHO

while in ketone the function group is C=O only that is bonded to two carbon atoms.

Example

Aldehyde - galactose, glucose, glyceraldehyde, fructose

Ketone - Trioses, Tetroses, Pentoses, Hexoses

6 0

3 years ago

Explain how DNA AND RNA WORK

lutik1710 [3]

Answer:

Explanation:

DNA are molecules that store genetic information in all organisms.

RNA are molecules that will form proteins based on the instructions coming from DNA.

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3 years ago

A mutation exists in a gene that controls hair growth on the middle digit of human fingers. some people have mid-digital hair, w

makkiz [27]

The best explanation that best predicts what happens to the trait over time is that the incidence of mid-digital hair will not change because it offers no selective advantage or disadvantage. A mutation is a sudden, spontaneous random change that occurs in the genetic make up of an organism. The presence or absence of mid-digital hair is controlled by a single gene with two alleles, and the allele H is dominant.

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3 years ago

Someone please answer

Margarita [4]

Answer:

out of the cell

bc water goes towards salt

4 0

4 years ago

To determine the precise meaning of a word, what should the reader consider? Check all that apply

Ludmilka [50]

Answer:

1. Context clues

2. Tone

3. Word choice

Explanation:

Context clues: Context clues can simply be defined as the hints that we get about the meaning of a word by reading a sentence or sentences related to that word. We can simply infer the meaning of the word by reading the sentence.

Tone: The tone of a sentence helps us to identify what the word in the sentence might mean. For example, if a sentence has a happy tone, we might infer that the word is related to some kind of happy meaning.

Word choice: The word choice refers to the selection of words by the writer. The usage of words by the writer helps us determine what the writer might mean by a word.

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3 years ago

Read 2 more answers