Biology Final exam

Biology 100 with Hagen/holder at University of Kansas

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By: Marcus Hollinger
Created: 2009-05-14
Size: 55 flashcards
Views: 68

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The smallest unit of life

the cell

____and____are required to maintain levels of biological organization , from cells to populations and communities, even entire ecosystems

energy, nutrients

_____is a state in which conditions in the internal environment are being maintained within ranges that individual cells can tolerate.

Homeostasis

Bacteria, Archaea, and Eukarya are three____

Domains

DNA

a. contains instructions for building proteins

b. undergoes mutation�

c. is transmitted form parents to offspring�

d, all of the above

d. all of the above

_____are the original source of variation in traits�

Mutations

A trait is____if it improves an organisms chances to survive and reproduce in it's environment.�

adaptive

Metabolism�

reactions by which cells acquire and use energy to live thrive and reproduce

Inheritance

acquisition of traits by way of transmission of DNA from parent to offspring

The smallest unit of matter

Atom

Atomic # = number of?

protons

Atomic mass =

proton + neutrons

an isotope has same_____and different____.

atomic number

atomic weight

in a neutral atom electrons = # of_____.

protons

in the periodic able columns equal______

groups or families with similar outer shell electrons

Rows equal______that have same number of______

periods�

outer shells

Top 6 elements in the human body

1. Hydrogen

2. Oxygen �

3. Nitrogen�

4.�Phosphorous

5. Carbon�

6. Oxygen�

Ionic Bonds

electrons transferred between atoms to make ions.

Held together by opposite charges

Covalent Bonds�

Electrons shared, making a molecule

equal sharing_______molecule

non equal sharing_____molecule

non polar

polae

Hydrogen bonds

bonds between polar regions�

are weak and easily broken�

water forms _____bonds with______and other_____molecules

Hydrogen, sugars, polar

______and_____substances usually dissolve in water

ionic and polar

_____dissolve in water and donate an H+ ion�

acids

____ dissolve in water and soak up H+ ions

bases

____control PH ranges

buffers

All atoms consist of electrons, proton, and neutrons.

true�

false

False

The mutual attraction of opposite charges holds atoms together as molecules in an_____bond.

ionic�

an ion is an atom that has_____an electron

a. gained�

b. lost�

c. hydrogen-bonded

d. a or b

c. hydrogen bonded

In a hydrogen bond, a covalently bound hydrogen atom weakly attracts an_____in a different molecule or a different region of the same molecule

a. ion�

b. electronegative atom

name the molecules of life and the organic compounds they are made up of.

Carbohydrates-lipids

Proteins-Amino Acids

Nucleic Acids-nucleotides

Sugars are a class of_____, which have more than one_____ groups.

a. proteins; amino

b. acids; phosphate

c. alcohols; hydroxyl

d. carbohydrates; carboxyl

c. alcohols; hydroxyl

Unlike saturated fats, the fatty acid tails of unsaturated fats incorporate one or more______.

a. single covalent bonds

b. double covalent bonds

Unsaturated fats are good for you because unlike saturated fats their tails don not bend and pack together.

a. true

b. false

Sterols are among lipids with no�

a. saturation

b. fatty acid tails

c. hydrogens

d. carbons

b. fatty acid tails

A denatured protein has lost it's�

a. shape

b. Hydrogen bonds

c. function�

d. all of the above

_____consist of nucleotides.

a. ATP

b. DNA

c. RNA

d. all of the above

long chain of amino acids.

a. carbohydrate

b. phospholipid

c. polypeptide

d. DNA

c. polypeptide

energy carrier in cell.

a. ATP

b. DNA

c. Polypeptide

d. carbohydrate

a. ATP

Glycerol, Fatty Acids, Phosphate

a. carbohydrate

b. phospholipid

c. polypeptide

d. DNA

b. Phospholipid

Two strand of nucleotides

a. carbohydrate

b. phospholipid

c. polypeptide

d. DNA

One or more sugar monomers

a. carbohydrate

b. polypeptide

c. phospholipid

d., ATP

d. ATP

Elements in the same column of the periodic table have_____.

a. different number of outer shell electrons

b. similar chemical properties

c. the same atomic number

d. all of the above�

b. similar chemical properties

Hydrogen bonding occurs when covalently bound hydrogen atoms are attached to___.

a. atoms which carry a partial negative charge

b. atoms which carry a partial positive charge

c. carbon atoms�

d. other hydrogen atoms

a atoms which carry a partial negative charge

*not soluble in water

*fats, waxes, oils

*Energy storage

�

Lipids

The cytoplasm includes all of the cell's components except the plasma membrane and cell wall.

a. true

b. false

In the nucleus�

a. DNA remain organized

b. ribosome subunits are built�

c. lysosomes operate

d. digestion occurs

b. ribosome sub units are built

1st law of thermodynamics

energy cannot be created or destroyed

2nd law of thermodynamics

entropy tends to increase

In cleavage a molecule is_______.

In condensation a molecule_______.

split into another

covalently binds with another to form a larger molecule.

Enzyme function is affected by�

a. temperature

b. pH

c. salt

d. all of the above

d.all of the above

vesicles form by way of.

a. endocytosis

b. exocytosis

c. phagocytosis

d. halitosis

e. a through c

f. all of the above

a. endocytosis

____cross the membrane on their own.

a. sugars�

b. amino acids�

c. ions

d, H2O

c. ions

Photoautotrophs use______from the air as a carbon source and ________as an energy source

carbon dioxide

sunlight

In the light dependent reactions�

a. carbon dioxide is fixed

b. ATP forms�

c. Co2 accepts electrons

d. sugars form

c. CO2 accepts electrons

About this deck

By: Marcus Hollinger
Created: 2009-05-14
Size: 55 flashcards
Views: 68

About StudyBlue

“I have used this website for three exams, and I see a huge difference in my test results.”
Naj