next to each statement it is true or false

The 1.-An enzyme can only function once, because it is changed by the chemical reaction. [ Select ]

2.- An enzyme's function depends on its three-dimensional shape. [ Select ]

3.- Each enzyme can work with a broad range of substrates. [ Select ]

4. An enzyme inhibitor can prevent a substrate from binding to the active site. [ Select ]

1. How might a skew in the age distribution of one species impact a whole community?

2. What are some benefits and drawbacks of generational overlap within species?

Identify three environmental problems-issues in California and provide the framework that you would use to resolve the three environmental problems-issues.

During which phase of growth would a primary metabolite be produced?

lag phase

exponential phase

stationary phase

death phase

all are correct

There have been close to 50 different types of bias identified in epidemiological practice and research, but nearly all can be broken down into two major bias categories: Information bias and selection bias. Select one of these biases and discuss the origin of this bias, common mistakes in epidemiological studies that create this bias, and methods to help reduce the referenced bias in epidemiological research and practice.

The greenhouse effect causes an increase in global temperatures, which has contributed to global climate change. This temperature increase is due primarily to:

a) CO₂​ and other greenhouse gases allowing more solar radiation to penetrate Earth's surface

b) CO₂​ and other greenhouse gases slowing the escape of heat from Earth

c) the loss of ozone that trapped cooling UV radiation in the atmosphere

d) CO₂ and other greenhouse gases slowing the escape of UV radiation from Earth

Assignment #10 Chapters 11 & 12

1. The mother of a child who was just diagnosed with type 1 diabetes turns to the child’s father and says, “This is all your fault. Your father has type 2 diabetes.” Is she correct in her assumption that the child inherited diabetes from his father’s family? Explain your response

2. Why sickle cell disease/trait and cystic fibrosis are considered probable genetic evolutionary disorders?

3. Why is carrier status for Duchenne muscular dystrophy (DMD) usually not transmitted from affected fathers to daughters, even though this disorder has an X-linked transmission pattern

4. Why is there such a high rate of spontaneous mutation among the genes responsible for classic hemophilia, Duchenne muscular dystrophy, and achondroplasia? 5. Edward has diabetes mellitus type 2 (DM type 2).He is struggling to maintain his blood sugar within normal limits. Edward also suffers from obesity and has been unable to control his weight with diet and exercise. He asks you if his problem is due to genetics. He points out that his mother also had type 2 diabetes and was obese. He also asks why his identical twin brother, Edgar, does not have diabetes even though they share genes and grew up in the same environment.

A. What would you tell Edward about the genetics of DM type 2?

B. What will you tell Edward about the relationship between DM type 2 and obesity? What will you tell Edward about the relationship between DM type 2 and obesity?

C. What do you think about genetic testing for DM type 2 in young? Is this likely to be successful at identifying a genetic cause?

D. Would genetic counseling benefit Edward and his family?

Construct a visual aid that integrates the concepts covered in our discussions on Nutrient Assimilation in animals (digestion and absorption of all three macromolecules)

Summaries should include at a minimum (but are not limited to these concepts and ideas):

o the three major food macromolecules; make sure you include their monomer and polymer structures.

o How each are enzymatically digested (including the enzymes involved and where the enzymes are active or activated)

o How digested monomers and compounds are absorbed (make sure to specifically describe the transport processes)

o The alimentary structures and/or locations where these processes occur

Mycorrhizae are the mutualistic partnership between fungi and the roots of certain plants. TRUE OR FALSE

Which of the following is not a greenhouse gas?

• carbon dioxide (CO₂₎

• sulfur dioxide (SO₂)

• methane (CH₄)

• ammonia (NH₄⁺)

• All of these choices are correct.

Bacillus thuringiensis produces

• a toxin that causes food poisoning.

• a biopesticide.

• enzymes used in cheese-making.

• a single cell protein used as food.

• All of these choices are correct.

Hops is the herb that gives beer some of its aroma and flavor. TRUE OR FALSE

1. A.  True/False :  If I have a large number of Type I muscle fibers, I should excel in explosive events such as sprinting and high jumping.

B. True/False : During a muscle contraction, the cross-bridge between actin and myosin is released by ATP.

C. Fill in the blank : When a muscle is relaxed, calcium levels are high in the ____________. (sarcoplasm or sarcoplasmic reticulum)

D. Fill in the blank : The ___________ energy pathway makes large amounts of ATP, and does not result in the build-up of lactic acid.

1) Give two mechanisms by which new genes are introduced into a genome

2) in 20 words or less describe a "dominant-negative" mutation

3) explain the differences between an activator and inducer

If you were going to present the problems of environmental policy making and enforcement to others, what framework would you use?

Provide a visual diagram/drawing (with arrows & brief descriptions) of what happens if toxic waste (solid and liquid) is accidentally dumped and leached into the Zanker Recycling Facility in Alviso, CA (10 points)? For example, how do leachates recycle and affect the wildlife & people that live near the landfill? What about any groundwater under the facility? Also, list three federal acts administered by the US EPA that are in place to minimize and or regulate potential environmental damage to the natural resources. Provide support for each statement.

Which of the following will increase renal filtration i.) decreasing the radius of the afferent arteriole ii.) increasing the radius of the afferent arteriole iii.) decreasing the radius of the efferent arteriole iv.) increasing the radius of the efferent arteriole v.) increasing the blood pressure vi.) decreasing the blood pressure. A.) i, iv and v B.) ii, iii and v C.) ii, iv and vi D.) i, iii and vi E.) ii, iii and vi

Genome sequences are useful to search DNA databases. Proteomics on the other hand is searchable protein sequence data that allows for comparison within and between species. However, protein expression by an organism changes during growth, disease, and the death of cells and tissues. Compare DNA genome and proteome analysis as resources to understand gene regulation. What comparisons can be made to understand gene expression and protein synthesis at various stages of an organisms life cycle?