Biology 1290B Lecture 4: cellular geography

84 views4 pages

azurellama425

25 Apr 2016

School

Department

Course

Professor

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

Cell theory: all living organisms are composed of cells or are cells, cells are the functional units of life, cells arise only from pre-existing cells by a process of division. All living organisms share the common properties of life: homeostasis maintains a stable internal environment, biofilms interact through a multicellular association, quorum sensing is a chemical communication and cooperation between cells. Cell: prokaryote -> pro: before, karyote nucleus. No nucleus (genetic information in area called nucleoid) Plasma membrane, ribosomes, nucleoid, cytoplasm, cell wall, pili, flagella, mesosome, Photosynthetic membranes: eukaryote -> eu: true, karyote nucleus. True nucleus (surrounded with nuclear membrane, contains dna) Plasma membrane, cytoplasm, nucleus, ribosomes, organelles, endomembrane system, Structural distinctions: eukaryotes have membrane-enclosed organelles; some bacteria have microcompartments surrounded by protein, protein/lipid transport in eukaryotes is carried out by the endoplasmic reticulum and. Thin protein filaments in cytoplasm protein tubules and filaments in cytoplasm.

Related Questions

1. Which of the following statements is NOT true about thecharacterization of life:

Select one:

a. Living things maintain a balanced internal environment

b. All living things reproduce by making an exact copy ofitself

c. Organisms extract energy from nutrients which allos them togrow.

d. All cells come from preexisting cells

The size of an ecosystem varies according to how you defineit.

Select one:

a. True

b. False

In a double blind clinical trial, both the study participantsand the people running the study don't know which people arereceiving the experimental drug and which are receiving theplacebo.

Select one:

True

False

indigotortoise823

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

Flag this Question

Question 211 pts

Blood cells placed in pure water will burst because there is a net movement of water out of the cell.

True

False

Flag this Question

Question 221 pts

Photosynthesis takes place in tiny organelles within the cell known as mitochondria.

True

False

Flag this Question

Question 231 pts

The balanced chemical equation for cellular respiration is

C6H12O6 + 6O2 â 6CO2 + 6 H2O + 36 or 38 ATP

True

False

Flag this Question

Question 241 pts

A catalyst is anything that speeds up a chemical reaction.

True

False

Flag this Question

Question 251 pts

Kinetic energy is the energy an object possesses due to its motion.

True

False

Flag this Question

Question 261 pts

Changes in temperature and pH may speed up or slow down the activity of an enzyme.

True

False

Flag this Question

Question 271 pts

There are 20 different amino acids.

True

False

Flag this Question

Question 281 pts

The products of the light-dependent reactions of photosynthesis are oxygen, ATP, and NADPH.

True

False

Flag this Question

Question 291 pts

Which of the following is NOT a component of the Cell Theory?

Cells arise only by division of a previously existing cell.

Cells are the smallest units of structure and function

All organisms are composed of one or more cells.

Cells can vary their shape and size to suit the environment for survival.

Flag this Question

Question 301 pts

What is the name of the two subatomic particles that can be found in the nucleus of an atom?

neutrons and electrons

protons and neutrons

protons and electrons

protons and morons

Flag this Question

Question 311 pts

Atoms that have either a positive or negative charge are known as:

Flag this Question

Question 321 pts

An atom with an unfilled outer energy level (electron shell) is likely to be:

inert

unable to form bonds with other atoms

reactive

extremely stable

Flag this Question

Question 331 pts

All living things are able to maintain stable internal conditions. This is known as

metabolism

homeostasis

heredity

cellular organization

Flag this Question

Question 341 pts

Which of the following is NOT considered to be one of the five basic properties shared among living organisms?

made of one or more cells

grow and reproduce

posses DNA

need oxygen to survive

Flag this Question

Question 351 pts

CFCs (Chlorofluorocarbons) in the stratosphere cause:

global warming due to increased CO2

increase ozone levels by converting O2 to O3 and decreasing UV passage to Earth.

act as a catalyst to destroy ozone increasing UV passage to Earth.

increased ice crystal formation that cools the earth.

Flag this Question

Question 361 pts

The process by which traits are passed from parents to offspring is known as:

Flag this Question

Question 371 pts

Alcoholic fermentation occurs in muscle cells of the human body.

True

False

Flag this Question

Question 381 pts

If carbon has 6 protons and 6 neutrons, how many electrons must it have to be electrically neutral?

Flag this Question

Question 391 pts

The loss of an electron is known as _______; the gain of an electron is known as ________.

reduction; oxidation

transduction; adduction

oxidation; reduction

removal; addition

Flag this Question

Question 401 pts

Kinetic energy is the stored energy that can be used for motion.

True

blushfox941

Biology 1290B Lecture 4: cellular geography

Document Summary

Get access

Related Documents

Biology 1290B Chapter Notes - Chapter 5: Quorum Sensing, Bacterial Growth, Generation Time

Biology 1290B Lecture Notes - Lecture 3: Plasmid, Chromosome, Magnetite

Biology 1202B Study Guide - Final Guide: Photon, Alkane, Photosynthesis

Related Questions