Answer:
<em><u>What does she need from the food she ate and the air she breathes so that she can go on her run? </u></em>
A. Rosa needs carbohydrates rich food (bread) to carry out her jogging activity. Protein-rich food before exercise is not recommended unless she is on a weight loss program (diet plan).
B. Rosa needs oxygen to perform aerobic respiration, which is required for maximum release of energy (36 molecules per reaction run). Anaerobic reactions yield less energy (2 molecules of ATP per reaction run) and are not recommended.
<em><u>How do Rosa's body systems work together to get the molecules she needs into her cells?</u></em>
Rosa's body cells need carbohydrates (glucose) and oxygen to perform aerobic respiration for the release of maximum energy. The glucose and oxygen molecules are provided to the cells via diffusion into the bloodstream. During exercise/jogging, complex molecules of carbohydrates such as starch (present in bread) are broken down into simple molecules (glucose) which are diffused into the blood. Likewise, a high amount of oxygen is provided to the body's cells via diffusion in blood, which is carried out by the faster movement of lungs and heart. The combined action results in the supply of both types of molecules to enter the cell where mitochondria use these substrates to produce energy molecules (ATPs).
<em><u>How do hair cells use these molecules to release energy for her body to run?</u></em>
The substrates (glucose and oxygen) enters the bloodstream and then taken up to the cell. Then they are provided to the mitochondria for the release of energy in the form of ATP. This is why mitochondria are known as the powerhouse of the cells. Within the cell, energy is released in a three-step process, i.e. glycolysis, the Krebs cycle, and oxidative phosphorylation. Here glucose reacts with oxygen. In the end, aerobic respiration per reaction run produces 36 molecules of ATP which are sufficient to meet intensive energy needs. During excrcise, the supply of oxygen and glucose is also faster due to faster lungs and heart actions.
PS: Anaerobic respiration cannot meet energy demands faster because the reaction produces only 2 ATP molecules per reaction run.
Answer:
3 kg is greater than 3000 mg and 250 cg
complete question:
ANSWER LIST -
mRNA moves to the ribosome
DNA unzips in the nucleus
Protein assembled at ribosome
Transcription occurs
Translation occurs
Answer:
1. DNA unzips in the nucleus.
RNA polymerase binds to the DNA sequence, separates the two strands and creates a single-stranded DNA molecule that will be transcripted.
2. Transcription occurs.
Transcription is the first step of gene expression. During this process, a gene's DNA sequence is copied and a mRNA molecule is produced.
3. mRNA moves to the ribosome
The mRNA is then transferred from the nucleus to the ribosome, the organelle that serves as a site for protein synthesis.
4. Translation occurs
Translation is the process where a mRNA sequence into the amino acid sequence of a polypeptide (protein).
5. Protein assembled at ribosome.
Translation, meaning the formation of a protein, occurs on the ribosome.
I hope I am correct and this helps a little bit.