Provide evidence to substantiate the hypothesis that eukaryotic cells evolved from prokaryotic cells in three sentences or less
In: Biology
Water is a highly essential nutrient; Proper hydration and water balance are critical for health. Many athletes consume sports drinks when working out and exercising. Take a look at the nutrition label on a sports drink, such as Gatorade® or Powerade®. 1) Using the label along with your text book, discuss at least 2 pros and 2 cons of using sports drinks. 2) Describe situations when these beverages are truly necessary. Be specific with duration of time, type of sport and environment. 3) Discuss your personal thoughts on choosing a water, sports drinks or other fluids for hydration.
In: Biology
answer the following statements
a-What is the difference between a shoot and a stem and name the parts each consists of
b-Mention the two types of stems and one difference that distinguish them
In: Biology
Guinea worm is one of the human diseases that is on the verge of eradication. There is no preventive vaccine or treatment available for the disease. Discuss the public health prevention and control efforts that have enabled the near eradication of Guinea worm disease globally.
In: Biology
Carolyn, a 58-year-old female, came into your clinic with a chief complaint of acute abdominal pain in the upper right quadrant. Murphy’s sign was positive, marked jaundice was observed, and history revealed recent weight loss, fatigue, and increased alcohol consumption due to a recent divorce. Carolyn denies IV drug use. Lab results show increased bilirubin, AST, ALT, and decreased serum albumin. A rapid HIV test was negative. List 3 differential diagnoses and include your reasoning behind each. What is the best diagnosis? Explain how you came to this conclusion. Explain the pathophysiology of the following symptoms: increased bilirubin, fatigue, and weight loss.
In: Biology
What does cell theory say?
What are the four functions of cellular reproduction?
T/F Sexual reproduction requires 2 parents
How many chromosomes does a gamete have?
How many parents in Asexual reproduction?
Do the offspring in Asexual reproduction vary in traits or are they clones?
Generally Meiosis and Mitosis divide what part of the cell?
What is Cytokinesis?
Meiosis is for ___reproduction and Mitosis is for ____ reproduction?
“Supercoiling” is the process of what?
Small protein that DNA wraps around?
Do chromosomes form before or after the cell enters mitosis?
How is the chromosome structured?
Sister chromatids form when the chromosome ____
Sister chromatids contain what when compared to each other?
The lifetime of a cell or time between cell divisions refers to what?
What is interphase?
What is M phase?
Which phase do the chromosomes duplicate?
Which phase does the cell spend most of its lifetime and approximately how long?
What is the mitotic spindle?
What is a centriole and what is its function?
Centrioles are located inside what?
Where does the mitotic spindle grow out of?
Duplicate chromosomes and duplicated centrosomes would mark the end of what?
In: Biology
A tumor grows from what?
What is a malignant tumor?
What is a benign tumor?
Cancer cells divide very ____ because they ____
What type of tumors will invade healthy tissue?
What is metastasis?
What is a secondary tumor?
3 treatments for cancer are?
Chemotherapy will kill 4 types of cells what are they?
An example of mistake during meiosis would include what?
When there is a mistake during meiosis what usually happens?
Trisomy 21 is also what?
What is nondisjunction?
The older the mother the higher the risk of what?
X?
XXY?
In: Biology
What does cell theory say?
What are the four functions of cellular reproduction?
T/F Sexual reproduction requires 2 parents
How many chromosomes does a gamete have?
How many parents in Asexual reproduction?
Do the offspring in Asexual reproduction vary in traits or are they clones?
Generally Meiosis and Mitosis divide what part of the cell?
What is Cytokinesis?
Meiosis is for ___reproduction and Mitosis is for ____ reproduction?
“Supercoiling” is the process of what?
Small protein that DNA wraps around?
Do chromosomes form before or after the cell enters mitosis?
How is the chromosome structured?
Sister chromatids form when the chromosome ____
Sister chromatids contain what when compared to each other?
The lifetime of a cell or time between cell divisions refers to what?
In: Biology
Would high exposures to ionizing radiation (such as x-rays) be effective in making milk safe?
In: Biology
sickle-cell. What percent of offspring should have any sickle-cells? Enter only a whole number.
In: Biology
Explain in detail and with drawings, the actual mechanism of ATP synthase (the protein responsible for making ATP) and the use of proton pumps during oxidative phosphorylation and how that leads to the synthesis of ATP. ****See picture below
In: Biology
Briefly explain how the lagging strand is replicated. Include how the replication starts, the enzymes involved and the completion of the lagging strand replication
In: Biology
In: Biology
the paper "Unlikely Allies" by Amanda Keener. It was published in The Scientist, November 2016, page 32. The Scientist is a free-access publication which can be found at www.the-scientist.com.
a) Is the immune system friend or foe to the brain? What is your opinion after having read the assigned paper?
b) What is/are the role(s) of the immune system in the body?
c) What is the role(s) of memory T cells? What is the relation between them and CD4+? Maybe the figure on page 35 can help answer this question.
d) What is the role of the immune system in fighting neurodegenerative disease?
In: Biology
In: Biology