Which substance on the plasma membrane helps identify chemical signals from outside the cell

Choose the functions of amino acids (free or in a bound form):A. carriers of genetic information B. neurotransmitters C. enzyme

Citrus2011 [14]

Answer: B. Neurotransmitters; C. Enzyme components; E. Hormones

Explanation: Aminoacids have a variety of functions because they can create proteins. These long and complex molecules perform important roles in different biological processes: they are responsible for the formation of enzymes and hormones. In neurotransmitters, the glutamate appears to be related to functions of the brain, like learning and memory. Other functions of the aminoacids are regeneration of muscular cells, have a role in imunology, growth of tissue, production of collagen and others.

7 0

4 years ago

Read 2 more answers

The diagram below shows the movement of substances A and B into a cell:

Grace [21]

Answer:

C. ATP is required to move substance A into the cell.

Explanation:

As the model shows a cell with the movement of substances A and B, so the correct statement following the model is "ATP is required to move substance A into the cell".

This is so because ATP is required by a cell to move the substance such as ions across a membrane against a concentration and at the same time another substance moves out of the cell by the process called diffusion.

As in the model, we can see substance A is moving in the cell while B is moving out of the cell (distance between cell membrane and substance B is more).

Hence, the correct answer is "C. ATP is required to move substance A into the cell."

8 0

4 years ago

Can you help me please

Alla [95]

6. strength
7.North, South
8. igneous

3 0

4 years ago

A single glucose molecule produces about 38 molecules of ATP through the process of cellular respiration. However, this only rep

mojhsa [17]

<h2>Glucose phosphorylation</h2>

Explanation:

The majority of the energy in a molecule of glucose is lost as heat

ATP produced by aerobic cellular respiration is made by oxidative phosphorylation
38 ATP particles can be made peroxidized glucose atom during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and around 34 from the electron transport system)
The bonds between carbons in the glucose particle releases energy
There are additionally high energy electrons captured caught as 2 NADH (electron bearers) which will be used later in the electron transport chain
NAD+ is an electron transport particle inside the cristae of a cell's mitochondria
In glycolysis, the starting procedure of a wide range of cellular respiration two atoms of ATP are utilized to connect 2 phosphate groups to a glucose particle, which is separated into 2 separate 3-carbon PGAL atoms

8 0

3 years ago

In 4 o'clock flowers, red is dominant to white, but the heterozygote is pink. What is the phenotype ratio of crossing red 4 o'cl

Ne4ueva [31]

Answer:

Phenotypic ratio = 1 Red : 1 Pink

Explanation:

This phenomenon exhited by the gene coding for flower colour in four o'clock plants is called INCOMPLETE DOMINANCE i.e. the red flower allele (R) is not completely dominant over the white flower allele (r), hence, a third intermediate pink phenotype (Rr) is formed in an heterozygous state. The red and white flowers will only be expressed in a RR and rr genotypes respectively.

In a cross between a red-flowered 4 o'clock plant (RR) and a pink-flowered 4 o'clock plant (Rr), the gametes:

R and R will be produced by the red-flowered plant while gamete R and r will be produced by the pink-flowered plant. Using this gamete in a punnet square, one will have four possible offsprings in which two will be phenotypically red-flowered (RR) and two phenotypically pink-flowered (Rr). i.e. 2RR:2Rr

Hence, the phenotypic ratio is 1:1 Red to Pink flower

3 0

4 years ago