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Bio 1610 SLCC Exam 2 Questions with Correct Answers
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cellular metabolism - Answer-all the chemical activities of a cell metabolic pathways are - Answer-a series of reactions in a particular order catabolic pathways - Answer-release energy by breaking down complex molecules into simpler compounds anabolic pathways - Answer-consume energy to b...

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  • October 15, 2024
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  • bio 1610 slcc exam 2 questions with correct answer
  • cellular metabolism answer all the chemical acti

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Bio 1610 SLCC Exam 2 Questions with
Correct Answers
cellular metabolism - Answer-all the chemical activities of a cell

metabolic pathways are - Answer-a series of reactions in a particular order

catabolic pathways - Answer-release energy by breaking down complex molecules into
simpler compounds

anabolic pathways - Answer-consume energy to build complicated molecules from
simpler ones

Energy - Answer-the capacity to do work or to move matter against opposing forces

kinetic energy - Answer-energy of motion or actually doing work

potential - Answer-stored energy or not being used at the moment

chemical energy - Answer-potential energy stored in molecules

Thermodynamics - Answer-the study of energy transformations

the term system in thermodynamics means - Answer-matter under study

the term surroundings in thermodynamics means - Answer-everything outside the
system

the term closed in thermodynamics means - Answer-isolated from its surroundings

the term open in thermodynamics means - Answer-can be transferred between systems
and surroundings

organisms are - Answer-open systems

First law of thermodynamics - Answer-Energy can be transferred and transformed, but it
cannot be created or destroyed.

energy cant be - Answer-created or destroyed only transformed

Entropy - Answer-A measure of disorder or randomness.

the more random a collection of matter - Answer-the greater its entropy

, Free energy - Answer-energy that is available to do work

Exergonic reactions are - Answer-RELEASE energy and yield products that contain less
potential energy than their reactants. EXIT. FIRE. EXIT.

Endergonic reactions are - Answer-ABSORB free energy from its surroundings. Store
energy. ENTER.

ATP powers cellular work by - Answer-coupling exergonic reactions to endergonic
reactions

G=H-TS - Answer-T is temp in Kelvin

Mechanical work - Answer-beating of cilia, contraction of muscle cells, movement of
chromosomes during cellular reproduction

Transport work - Answer-the pumping of substances across membranes against the
direction of spontaneous movement

Chemical work - Answer-the driving of endergonic reactions that would not occur
spontaneously

breathing and cellular respiration - Answer-are closely related

ATP - Answer-adenosine triphosphate

What is ATP? - Answer-a close packing of nucleotide consisting of the nitrogenenous
base adenine, the sugar ribose, and a CHAIN OF THREE PHOSPHATE GROUPS

Phosphate bonds in ATP are - Answer-weak covalent bonds

phosphorylated - Answer-the recipient of the phosphate group, a transferring phosphate
group to another molecule

ATP is a renewable resource that is regenerated by - Answer-addition of a phosphate
group to adenosine diphosphate (ADP)

In a working muscle cell - Answer-the entire pool of ATP is recycled once each minute,
over 10 million ATP consumed and regenerated per second per cell.

Enzymes speed up the cells chemical reactions by - Answer-lowering energy barriers

Catalyst - Answer-A chemical agent that changes the rate of a reaction without being
consumed by the reaction.

enzyme - Answer-A catalytic protein.

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