How specifically is the spinal cord, CNS, and PNS involved in the process of learning a new language? What function do the parasympathetic, sympathetic, autonomic, and somatic nervous systems have in learning a new language?
In: Biology
1. Because plant and animal life on earth is impossible without photosynthesis
A. environmental pollution is not a problem
B. there is concern for increasing numbers of plant species that face extinction
C. worldwide decline of insect diversity is of no concern
D. there is no need to consider conservation biology
2. Reactions with a positive ΔG
can occur as part of coupled reaction |
||
are reactions that can never happen |
||
reactions that do not require activation energy |
||
are exergonic |
3. The induced fit is an improved model for enzyme function than the lock and key model because it considers
considers the Gibbs free energy of the reaction |
||
considers specificity of the enzyme |
||
considers the catalytic activity |
||
considers the rate of reaction |
In: Biology
In: Biology
hi, trying to understand the proccess of crebs cycle..
a. If Isocitrate dehydrogenase is inhibited by axcess of citrate, and alpha ketogluterate by axcess of Suc-CoA, what exactly happeneds with the already made citrate and Suc-CoA? do they go back to being Acetyl coA and Alphaketogluterate respectively (and also become into fatty acids, amino acids and purins)?
b. I also don't get how calcium signals for more production of Acethyl coA? who gets this signal? is that the Icam somthing...?
c. in HIF1 degradation in the proteosome, what exactly pVHL and PHD2 do? like what is done individually and what tougether?
d. does HIF1 stop crebs cycle? I only know it encourages anaerobic respiration.. so what proccess does it stop if so? is directly or indirectly?
e. is there any other important substances in the crebs cycle? i remember something said about Fumarate and Succinate is there something worth remembering?
thanks in advance, I am very very lost and my summery is just confusing me.
In: Biology
In: Biology
1. for 1 molecule of glucose (6 C-atoms), the stage of pyruvate processing generates
NADH, CO2 and Acetyl CoA |
||
ATP, H+, oxaloacetate |
||
2NADH, 2CO2 and 2Acetyl CoA |
||
2ATP, 2H+, 2 oxaloacetate |
2. how many reduced electron carriers after glycolysis, pyruvate processing and citric acid cycle are available to make the ET work
5 NADH, 1 FADH2 |
||
4 ATP, 5NADH, 1 FADH2 |
||
4 ATP, 10NADH, 2 FADH2 |
||
10 NADH, 2 FADH2 |
In: Biology
In: Biology
1. we discussed the variation among several species of (based on the geological dates we have covered) recent human species that do NOT include neanderthals. I would like for you to identify two, and write three to four bullet points to identify characteristics of each.
2. Next, tell me a bit about Neanderthals, and why they are more intelligent and social than stereotypes that exist in popular culture (think Geico commercials, cavemen, etc).
In: Biology
QUESTION 18
Briefly describe why E. coli wants to express different amounts of the lac operon genes in relation to the presence/absence of glucose and lactose and the molecular mechanism by which it does so for each of the four conditions with respect to glucose and lactose.
In: Biology
In: Biology
Homo erectus -- One Species or Multiple Species?: Some hypothesize that Homo erectus should be subdivided into multiple species, others support a single species hypothesis with a broad geographic distribution and population variation. There is support for both hypotheses!!! Which hypothesis do you support? and why? What evidence would cause you to shift your support to the other hypothesis? and why? For your answers, paleontological details (geography, diagnostic traits, geologic dates) count!
In: Biology
Birds migrate from areas of low or decreasing resources to those with high or increasing resources of food and nesting locations. Long distance migratory birds would travel in the most energy-efficient way and would migrate only if they can further optimize their energy budget. The ability to maintain a high and constant body temperature enables birds to exploit a remarkable range of habitats. Discuss how behavioral and physical adaptation could help the migratory birds manage their body thermoregulation with minimal energy consumption. [Total : 20 marks]
In: Biology
What is a goal of human therapeutic cloning?
to transfer cells from an unrelated individual into a patient needing a transplant
to create pluripotent cells for medical research only
to make a new individual, who is genetically identical to a patient needing a transplant
to create pluripotent stem cells using a patient’s nucleus
to extract ES cells from an embryo
In: Biology
Please summarize the function of RNA polymerase II carboxy-terminal domain (CTD) in RNA processing for proper mRNA function
In: Biology
In: Biology