NUTR 1010 Chapter 3: Textbook chapter 3 notes

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11 Feb 2012

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Our ability to properly digest and absorb foods is critical to health and optimal functioning. Why do we eat? functions: food provides us with energy, we use this energy to maintain homeostasis and proper chemical, provides molecular building blocks we need to manufacture new tissues for growth and repair. Appetite: a psychological desire to consume specific foods, related to pleasant sensations associated with food and often linked to strong cravings for particular foods in absence of hunger, environment and mood contribute to appetite. Hunger: a physiologic sensation that prompts us to eat. Foods containing proteins have highest satiety value (they make you feel more full) High fat diets have higher satiety value than high carbohydrate diets. Bulky meals: contain fiber and water within food, tend to stretch stomach and small intestine, which sends signal back to hypothalamus telling us we are full. Digestion: process by which foods are broken down into their component molecules, either mechanically or chemically.

Related Questions

part 1

Homeostasis: Response to Stimuli

From the examples below, select the examples of cells or organisms responding to stimuli in order to maintain homeostasis.

1.)A plant bending toward a light source

2.)A cell bursting because it takes up too much water

3.)A person shivering when their body temperature is low

4.)A unicellular organism beating microscopic hairs to escape a chemical pollutant in its environment

5.)A cell dying due to a chemical poison

6.)An animal growing larger

7.)Ants moving within their mounds depending upon the time of day

8.)Iguanas laying in the sunlight if their body temperature is low

9.)Birds migrating when seasons change

10.)A person or animal getting sick because of infectious bacteria

part2 fill in the blank

A state of biological balance, or ____________ , is important for the survival of individual cells and ____________ alike.

Physiological factors such as ____________ , water levels, and pH must remain within a certain ____________ for cells and organisms to remain healthy and functional.

Regulation of the ____________ environment of cells and organisms is carried out through ____________ and other control ____________ .

choice of words:

location

external

hormones

mechanism

homeostasis

internal

groups

feedback

oganisms

temperature

range

What are the effects of world hunger? world hunger simply means that there are lots of people with an insufficient amount of food. World hunger has become a major problem nowadays. It is presented in media to the public and, as a result, people behave become aware of it. World hunger has serious social and environmental effects, but there is also some solution.

Some of the social effects of world hunger are malnutrition and illiteracy. When a human body does receive a daily sufficient amount of nutrients, it will not do its functions well. If this condition remains for a long time, the body will eventually die. According to Ziegler(2007) in 2006, hunger and diseases resulted from it were the main death cause of 36 million people (para2). Also, people who do not have enough food have few chances to go for education because obviously, they will not be financially mentally, and physically ready to study.

Some of the environmental effects of world hunger are logging and agriculture. Result in trees many services to the environment where there are they are in industrial areas absorb carbon dioxide and provide us with oxygen, which in agricultural areas are in addition to the above work windbreaks to protect crops and provide shade and provide us with wood, and dead trees in the forest other services important to the environment they lose their leaves periodically and the fallen leaves decomposed "humus" feeds the soil and maintains soil fertility, which provides a constant temperature of about wild animals that find shelter forest, a place suitable for life. According to Harcurt(2011) "many of these great impact on agricultural production and hence nutrition"(para3).
And forests from renewable resources, which goes a lot of human trees to get wood for the furniture industry, paper, and clothing.
Has resulted in over-cutting of trees and forest degradation and its orientation towards drought

Some of the solutions for world hunger are even though the government is doing a lot of solutions to reduce world hunger still are facing this problem. The solution is that government should have to pay all basic expenses to under 18 and over 50 and also give enough employment to young people. Accordingto Ziegler (2007) everyone should work together to find a solution to this problem(para4).
One another solution for decrease world hunger is government should give equal and free education to all citizens even they are rich or poor.

In conclusion: The government should help world hunger or poverty to support people with food and money. Also, someone must fix problems such as health or education to prevent hunger. Also, climate change should make the environment better. If everyone helps us to support people with money or food we won't find world hunger.

indigomoose382

To support your work, use your course and text readings and also use outside sources.

As in all assignments, cite your sources in your work and provide references for the citations in APA format.

Participate in the discussion by asking a question, providing a statement of clarification, providing a point of view with a rationale, challenging an aspect of the discussion, or indicating a relationship between two or more lines of reasoning in the discussion.

Homeostasis

Using the South University Online Library or the Internet, research about homeostasis.

Based on your research and understanding, provide your response to the following tasks:

*Analyze the feedback mechanisms that maintain homeostasis, and what happens when these systems do not function appropriately.

*Provide two specific examples for each.

*Provide the organizational levels in order, beginning at the atom.

*Then, analyze how each level relates to specific functions and to each other.

*Evaluate metabolism, anabolism, and catabolism.

*Then, distinguish them by providing an example for each of these and the end result for that reaction.

*Analyze and define internal and external respiration in terms of physiology and anatomy.

Please answer all questions....

NUTR 1010 Chapter 3: Textbook chapter 3 notes

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