All categories

3 years ago

Can anyone help me please?

Biology

1 answer:

quester [9]3 years ago

8 0

Question 8-
(a) move out of the cell
(b) cell would shrink
(c) hypertonic
Queston 9-
(a) move into the cell
(b) cell would swell
(c) hypotonic

You might be interested in

What calculators are allowed on the ap biology exam?.

3241004551 [841]

Answer:

fourfunction, scientific, or graphing calculator

Explanation:

6 0

2 years ago

A new life form was discovered on Mars, one based upon Silicon instead of Carbon. Explain what properties Silicon has that allow

Vesna [10]

Group IV of the Periodic Table of the Elements contains carbon (C), silicon (Si) and several heavy metals. Carbon, of course, is the building block of life as we know it. So is it possible that a planet exists in some other solar system where silicon substitutes for carbon? Several science fiction stories feature silicon-based life-forms--sentient crystals, gruesome golden grains of sand and even a creature whose spoor or scat was bricks of silica left behind. The novellas are good reading, but there are a few problems with the chemistry.

<span>
CRYSTALLINE CREATURES? Silicon can grow into a number of lifelike structures, but its chemistry makes it unlikely that it could be the basis for alien life-forms.</span>

Indeed, carbon and silicon share many characteristics. Each has a so-called valence of four--meaning that individual atoms make four bonds with other elements in forming chemical compounds. Each element bonds to oxygen. Each forms long chains, called polymers, in which it alternates with oxygen. In the simplest case, carbon yields a polymer called poly-acetal, a plastic used in synthetic fibers and equipment. Silicon yields polymeric silicones, which we use to waterproof cloth or lubricate metal and plastic parts.

3 0

3 years ago

DNA is transcribed to messenger RNA (mRNA), and the mRNA is translated to proteins on the ribosomes. A sequence of three nucleot

Maru [420]

Answer:

start codon - AUG

in-sequence amino acid - AAA, UGC, AUC, CAC, GCA, ACU

stop codon - UAA, UAG, UGA

Explanation:

From the amino acid chart, the start codon is represented by the codon AUG which also code for the amino acid methionine. There are three stop codons including UAA, UAG, and UGA. The stop codons signal the end of the translation process of the mRNA. Every other codon within the mRNA chain codes for different amino acids except methionine.

Hence, using the attached amino acid chart:

start codon - AUG

in-sequence amino acid - AAA, UGC, AUC, CAC, GCA, ACU

stop codon - UAA, UAG, UGA

6 0

3 years ago

Och

Gala2k [10]

Answer:

Please explaing more

Explanation:

I dont understand

6 0

3 years ago

Which of the following substances increases in quantity during repititive muscle contraction during oxygen deficti ?

sleet_krkn [62]

Answer:

Lactic Acid

Explanation:

Lactic acid builds up during strenuous movement combined with lack of sufficient oxygen.

3 0

3 years ago