BIOL 102 Chapter Notes - Chapter 1-2: Unified Atomic Mass Unit, Molar Concentration, Electronegativity

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ultramarinemanatee846

20 Aug 2016

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Chapter 1:the principles of life and levels of biological organization. 1. 1 unifying principles that guide our understanding of life. 1: cells are the simplest unit of life. Cells and organization: organisms maintain an internal organization. The smallest unit of organization is the cell. New cells come from pre-existing cells via cell division. 2: living organisms use energy: to maintain internal order, organisms need energy. Energy is utilized in chemical reactions collectively known as metabolism. Acquired from the environment for the maintenance of organization and internal order: living organisms interact with their environment. Responses to environmental changes: organisms react to environmental changes to promote their survival. Includes other organisms, adaption: living organisms have mechanisms that maintain homeostasis. Regulation and homeostasis: organisms regulate their cells and bodies to maintain relatively stable internal condition, a process called homeostasis: Continually regulate cellular metabolism so nutrients are used and new cellular components are synthesised when needed: living organisms grow, develop and reproduce.

Related Questions

Q1:Match the characteristic distinguishing living systems with its association/description below:

-Program

-Improvisation

-Compartmentalization

-Energy

-Regeneration

-Adaptability

-Seclusion

1)Maintenance of pathways and metabolic processes operate in isolation even though they are in the same compartment.

2)Breaking down products in order to synthesize new ones

3)Continuously replacement of damaged molecules

4)Organized plan for formation of organism

5)As the environment changes, the populations of organisms can change their programs to promote survival of organization

6)Creating conditions separate from environment, so chemistry can take place in specialized places or even specialized cells

7)Individual organisms can modify pathways/behaviors in response to changes in environment

Q2: Genomics is concerned with the location, expression, and function of individual genes, while genetics is concerns itself with analysis of the totality of genetic information.

periwinklewallaby496

It's a quiz for my life science class.

QUESTION 1

Organisms that have descended from the same initial group and have the ability to interbreed belong to the same

	A.	species.
	B.	family.
	C.	class.
	D.	genus.
	E.	order.

5 points

QUESTION 2

The simplest entity that exhibits all of the properties of life is called a(n)

	A.	molecule.
	B.	cell.
	C.	organism.
	D.	tissue.

5 points

QUESTION 3

In populations, adaptation usually arises through

	A.	responsiveness.
	B.	heredity.
	C.	metabolism.
	D.	natural selection.
	E.	development.

5 points

QUESTION 4

Scientists have found that ancient fossils

	A.	are less similar to present-day organisms than more recent fossils.
	B.	are just as similar to present-day organisms as more recent fossils.
	C.	are more similar to present-day organisms than more recent fossils.
	D.	are very similar to present-day organisms.
	E.	bear no resemblance to present-day organisms.

5 points

QUESTION 5

What is the term that describes the study of the relationship between living things and components of their environment?

	A.	herpetology
	B.	analogy
	C.	zoology
	D.	ecology
	E.	ichnology

5 points

QUESTION 6

Characteristics usually associated with life include all of the following except:

	A.	motility.
	B.	a high degree of organization.
	C.	lack of change from generation to generation.
	D.	reproduction.
	E.	responsiveness to stimuli.

5 points

QUESTION 7

The scientific name for the black-footed ferret is Mustela nigripes. The name Mustela indicates the _____________________ to which the organisms belongs.

	A.	phylum
	B.	class
	C.	family
	D.	species
	E.	genus

5 points

QUESTION 8

Which of the following is considered to be the most basic living unit?

	A.	organ system
	B.	molecule
	C.	organelle
	D.	cell
	E.	tissue

5 points

QUESTION 9

Which of the following concepts best describes the wide variety of dog species we observe, ranging from the domesticated golden retriever or the basset hound, to the wild dogs of Africa, to foxes?

	A.	preadaptation
	B.	special creation
	C.	inheritance of acquired characteristics.
	D.	taxonomy
	E.	evolution

5 points

QUESTION 10

If an ecologist is studying the cycling of carbon through a particular environment (which involes the movement of carbon through living things as well as through rock, air, and water), the scientist is studying at what level of ecology?

	A.	organismal
	B.	community
	C.	ecosystem
	D.	population
	E.	biosphere

5 points

QUESTION 11

Which list is organized from smallest to largest level of organization of life?

	A.	organisms, organ systems, organs, tissues, cells, organelles
	B.	organelles, cells, tissues, organs, organ systems, organisms
	C.	organelles, tissues, cells, organ systems, organs, organisms
	D.	tissues, cells, organelles, organs, organ systems, organisms
	E.	cells, tissues, organ systems, organelles, organs, organisms

5 points

QUESTION 12

When examining the hierarchy of life, which of the following terms is most inclusive?

	A.	biosphere
	B.	population
	C.	species
	D.	ecosystem

5 points

QUESTION 13

The units of inheritance are

	A.	evolutions.
	B.	heredities.
	C.	genes
	D.	twins.
	E.	metabolic activities.

5 points

QUESTION 14

Organisms that undergo asexual reproduction

	A.	require another organism to reproduce.
	B.	are usually very complex.
	C.	produce offspring that are different from each other.
	D.	do not require energy to reproduce.
	E.	produce offspring that are identical to each other and to the parent.

5 points

QUESTION 15

All the living organisms in a particular area at a particular time make up a

	A.	biosphere.
	B.	community.
	C.	biosystem.
	D.	population.
	E.	ecosystem.

5 points

QUESTION 16

The first step in the scientific method is to

	A.	identify a problem.
	B.	predict the results of an experiment.
	C.	propose a solution.
	D.	draw a conclusion.
	E.	perform an experiment.

5 points

QUESTION 17

Young multicelled organisms usually start out small, then grow in size, and increase in complexity. This process is called:

	A.	heredity.
	B.	metabolism.
	C.	development.
	D.	evolution.
	E.	heredity.

5 points

QUESTION 18

To maintain order within their cells and organs, all living things must

	A.	carry on metabolism.
	B.	reproduce.
	C.	constantly change.
	D.	be able to move.
	E.	extract energy from sunlight.

5 points

QUESTION 19

Which of the following includes Highest levels of hierarchy?

	A.	family
	B.	phylum
	C.	domain
	D.	kingdom
	E.	order

5 points

QUESTION 20

Fungi are classified into which domain?

	A.	Archaea
	B.	Eukarya
	C.	Bacteria
	D.	Fungi

erinhare264

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

BIOL 102 Chapter Notes - Chapter 1-2: Unified Atomic Mass Unit, Molar Concentration, Electronegativity

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