Questions
How specifically is the spinal cord, CNS, and PNS involved in the process of learning a...

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...

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

miocene hominoid Evolution - 1) is it reasonable to expect that mutation rates are relatively constant...

miocene hominoid Evolution - 1) is it reasonable to expect that mutation rates are relatively constant over long periods of time? what events would significantly alter the mutation rates of a species?

In: Biology

hi, trying to understand the proccess of crebs cycle.. a. If Isocitrate dehydrogenase is inhibited by...

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

complete the table below. Type of fatty acidNumber of double bonds Saturated Monounsaturated Polyunsaturated    List...

complete the table below.
Type of fatty acidNumber of double bonds

Saturated
Monounsaturated
Polyunsaturated
  
List three food sources each for saturated, monounsaturated and polyunsaturated fats.
Saturated fat:
1. .
2. .
3. .
Monounsaturated fat:
1. .
2. .
3. .
Saturated fat:
1. .
2. .
3. .
What is the main type of phospholipid in food? ______________________________________
What is its function in the food industry? ___________________________________________
Phospholipids are important components of _____________________________ in the body.
Where does the body receive most of its lecithin from? _______________________________
What type of sterol is found in animal foods? ______________________________________
What is a beneficial function of plant sterols? ______________________________________
List three compounds that our bodies make from cholesterol:
1. .
2. .
3. .
The gallbladder secretes _________________ to emulsify the lipids and make them available for digestion.
The two enzymes secreted into the small intestine to digest lipids are:
1. .
2. .
These enzymes break triglycerides down into:
1. .
2. .
3. .
list the three lipid particles that can be directly absorbed into the bloodstream:
1. .
2. .
3. .
Lipoprotein What does it transport?
What type of lipoprotein is associated with a high risk of heart disease? _______________________
What type of lipoprotein is associated with a lower risk of heart disease? ______________________

How much fat can be stored in adipose tissue? _________________________________________

In: Biology

1. for 1 molecule of glucose (6 C-atoms), the stage of pyruvate processing generates NADH, CO2...

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

you sampled 550 college students and found that 352 have Darwins tubercle. a) what are the...

you sampled 550 college students and found that 352 have Darwins tubercle. a) what are the frequencies of alleles T and t? b) what are the genotype frequencies (TT, Tt and tt) ? c) if the expected allele frequencies are equal, what are the expected genotype frequencies? d) what does this tell you about the population?

In: Biology

1. we discussed the variation among several species of (based on the geological dates we have...

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...

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

You are a bacterium living well in a community of other bacteria, phage and yeasts. Resources...

You are a bacterium living well in a community of other bacteria, phage and yeasts. Resources are partitioned well; cooperation is efficient and abundant. But what is this? One hundred outside bacteria are trying to enter and become established and this is not a welcomed event.
How would you use your secretion system to defend your community and yourself? How would you also use your secretion system to support the existence and well-being of other microorganisms in your biofilm community?

In: Biology

Homo erectus -- One Species or Multiple Species?: Some hypothesize that Homo erectus should be subdivided...

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...

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...

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...

Please summarize the function of RNA polymerase II carboxy-terminal domain (CTD) in RNA processing for proper mRNA function

In: Biology

we studied many aspects of pollution on marine mammals including oil spills, PCBs, mercury, and plastics....

we studied many aspects of pollution on marine mammals including oil spills, PCBs, mercury, and plastics. discuss the specific problems, effects in specific ecosystems, anf any and all processes involved.

In: Biology