Answer:
A true
Explanation:
Living things are made of four types of molecules, known as macromolecules. These macromolecules are proteins, nucleic acids (DNA and RNA), lipids (fats) and carbohydrates. Each type of macromolecule is made of its own building blocks, which are intricately connected to form different shapes.
<h2>Pentose phosphate pathway</h2>
Explanation:
- Ten days after an injury, there is still cellular and tissue repair going on. Glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase are two enzymes involved in the pentose phosphate pathway which are also found in abundance in neutrophils and macrophages. These phagocytic cells of the immune system utilize NADPH to generate superoxide radicals from molecular oxygen, which are used to kill the pathogens or damaged cells they have ingested. The great rise in these two enzymes could be coming from these immune cells as they are cleaning up the damaged tissue.
- Additionally, these immune cells use these two enzymes to produce NADPH, which can be used to counterbalance oxidative stress via the action of the glutathione system. Injured tissue can cause oxidative stress and increase the need for action from the glutathione system.
- The glycolytic enzyme activity would be decreased as some of the glucose is shunted to the pentose phosphate pathway to favor tissue repair over the ATP generation which comes from the glycolytic pathway reactions.
Viruses are quite unique and varying a cellular creatures that can have multiple different kinds of structural features.
It can have in its centre either DNA or RNA. Double or single stranded.
1. In prophase I of meiosis, homologous chromosomes pair up - they don't in mitosis.
2. Also, crossing over and recombination occurs in prophase I of meiosis unlike in mitosis.
True Minerals are naturally occurring and not manufactured. However, please show the answer choices so I could answer it.
