BISC 101 Chapter Notes -Golgi Apparatus, Drug Detoxification, Regional Policy Of The European Union

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aquamarinehedgehog675

16 Sep 2012

School

Simon Fraser University

Department

Biological Sciences

Course

BISC 101

Professor

Derek Bingham

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Document Summary

Objective 1 specify the characteristics we associate with life and explain why the cell is considered to be the basic unit of life: exchange materials with the environment. Cells take in nutrients and nutrient gases, and expel wastes on an ongoing basis. Our cells absorb needed materials from, and deposit waste materials into, the ecf: obtains energy from organic materials. Cells take in sugars and metabolize them to obtain energy which can then be used to perform cellular activities: can synthesize complex organic molecules. Proteins and fats are only found in living cells or organisms, or in situations where living cells have deposited the molecules: reproduction, can respond to environmental stimuli. Cells and organisms respond to cold temperatures by moving somewhere warmer, or by altering their physiology to make more heat. The cell is the basic unit of live because a cell is the simplest structure that processes all the basic components of living matter.

Related Questions

Please Help. Thank you very much.

Ecology is the study of how organisms interact with their environment. Thus, a central question in ecology concerns how organisms respond to environmental variation. The flip side of this question is to ask whether the variation in characteristics of organisms is the result of variation in features of the environment. This variation can occur in space or through time.

1. Make a list of all the environmental variables that you can think of that are likely to be important to organisms. Think about plants and microbes as well as animals.

1A. One environmental change of great concern to us is climate change, specifically the prospect of human-caused global warming, a topic to which we will return. How do organisms respond to this spatial and temporal variability in the environment?

Which of the following is NOT one of the uses of fungi?

Select one:

a. As a source of antibiotics.

b. To make drinks, like beer.

c. To produce fabrics like cotton and linen.

d. To make food, like bread.

e. As a direct food source: mushrooms, for example.

How do fungi get nutrients?

Select one:

a. They ingest organic material, break it down internally, and absorb the released nutrients through their digestive system.

b. Fungi use each of these methods to get nutrients.

c. They secrete enzymes that break down dead matter or living organisms and absorb the released nutrients.

d. They receive nutrients from other organisms that trade the nutrients for protection from pathogens.

e. They produce their own by photosynthesis.

Why is fungi's role as biodegraders so important to ecosystems?

Select one:

a. It transfers the energy from sunlight into sugars.

b. It provides nutrients and oxygen to the ecosystem.

c. It protects plants from harmful viruses and bacteria.

d. It keeps the level of prey animals down so they do not overwhelm the ecosystem.

e. It recycles and reuses organic molecules so they are not wasted.

The living organisms that exist upon the earth exhibit a wide array of physical, chemical, and behavioral variation. Each feature of an organism is an adaptation acquired by that species through evolution, which uniquely suits an organism to survival within a given set of environmental conditions.

Find an example of the weirdest, wildest, most bizarre or interesting species you can. Discuss those features that uniquely suit this organism to survival within a given set of environmental conditions. When considering the features of an organism, include its observable physical characteristics (which can be seen by the naked eye), as well as the molecular, metabolic, or chemical characteristics of the organism that can occur at the level of (or within) cells.

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BISC 101 Chapter Notes -Golgi Apparatus, Drug Detoxification, Regional Policy Of The European Union

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