Bio Final Exam

Question 1 of 39

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What is a Metabolic pathway?

Select one of the following:

  • Metabolic energy that is captured more easily if it is released in large amounts rather than in small

  • A series of steps (in cells) in which molecules are broken down OR assembled

  • substrates fit onto the enzyme in such a way that they are oriented to react.

Question 2 of 39

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Enzymes catalyze (speed up) reactions in metabolic pathways

Select one of the following:

  • True
  • False

Question 3 of 39

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Energy transformations are always 100% efficient.

Select one of the following:

  • True
  • False

Question 4 of 39

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Organisms are open systems (constant energy in-flow).

Select one of the following:

  • True
  • False

Question 5 of 39

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Shape determines protein function. Enzymes are proteins.

Select one of the following:

  • True
  • False

Question 6 of 39

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Substrate molecules bind to Enzymes active sites

Select one of the following:

  • True
  • False

Question 7 of 39

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What is chemical energy responsible for?

Select one of the following:

  • Chemical energy determines how active certain chemicals in your bloodstream are

  • Providing living cells with energy from food

  • Providing the energy the body needs to regulate the amount of chemicals in the body.

  • All of the above

Question 8 of 39

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What is encode?

Select one of the following:

  • one must attend

  • one must review

  • one must rehearse

Question 9 of 39

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What does it mean to consolidate?

Select one of the following:

  • One must review

  • One must attend

  • One must rehearse

Question 10 of 39

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

Select one of the following:

  • All living things are composed of one or more cells

  • All new cells arise from existing cells

  • A network of protein fibers that maintain the shape of the cell

  • The cell is basic unit of life (the smallest entity that can be “living”)

Question 11 of 39

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Which of the following is NOT a component of Plasma Membrane

Select one of the following:

  • Cholesterol

  • Proteins

  • Carbohydrates

  • Ribosomes

  • Phospholipids

Question 12 of 39

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Which of the following does not stand true for Membrane Functions and molecules that perform functions:

Select one of the following:

  • Carbohydrates→ “identification tags” showing type of cell and whether it belongs in organism

  • Proteins→ “doors” and “pumps” for transporting molecules in or out of the cell

  • Cholesterol→ gives stability to fluid membrane of animal cells and responds to temperature conditions in the cell’s environment

  • Ribosomes→ a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cell

  • Osmosis→ diffusion of water molecules across a permeable membrane

  • Flows from high to low→ molecules, from high to low concentration

Question 13 of 39

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Which of the following does NOT require energy?

Select one of the following:

  • Sugars flowing through protein channels from high blood levels to low levels in brain cells

  • Movement of sodium ions from low concentration outside a cell to higher concentration inside a cell

  • Moving fat or lipid molecules from low concentration in the blood to high concentration in fat storage cells

Question 14 of 39

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Which of the following DOES require energy?

Select one of the following:

  • Flow of oxygen-rich red bloods cells, to oxygen-starved muscle cells during exercise

  • Diffusion of water or gases through the membrane.

  • Moving fat or lipid molecules from low concentration in the blood to high concentration in fat storage cells

Question 15 of 39

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-In all the cases below, blood sugar (glucose) is flowing into a cell, through a channel protein in the cell membrane.
In which case will the flow of sugar be fastest?

Select one of the following:

  • Sugar concentration outside the cell: 10%. Sugar concentration inside the cell: 3%

  • Sugar concentration outside the cell: 6%. Sugar concentration inside the cell: 3%

  • Sugar concentration outside the cell: 10%. Sugar concentration inside the cell: 9%

Question 16 of 39

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Fill the blank spaces to complete the text.

Catabolic pathway: (energy out, exits; exergonic)

Question 17 of 39

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Fill the blank spaces to complete the text.

Anabolic pathway: (energy in, enters; endergonic)

Question 18 of 39

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Fill the blank space to complete the text.

Thermodynamics: Takes in →comes out as heat or makes you move, grow, etc.

Question 19 of 39

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Fill the blank space to complete the text.

Prokaryote is

Question 20 of 39

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Fill the blank space to complete the text.

Eukaryote is a

Question 21 of 39

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Which type of energy is stored within the bonds of all the food molecules we eat?

Select one of the following:

  • Heat Energy

  • Potential Energy

  • Light Energy

  • Kinetic Energy

Question 22 of 39

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What is chemical energy responsible for?

Select one of the following:

  • Providing the energy the body needs to regulate the amount of chemicals in the body.

  • Providing living cells with energy from food

  • Chemical energy determines how active certain chemicals in your bloodstream are

  • All of the above

Question 23 of 39

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Which type of energy is stored within the bonds of all the food molecules we eat?

Select one of the following:

  • Heat Energy

  • Potential Energy

  • Light Energy

  • Kinetic Energy

Question 24 of 39

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Fill the blank space to complete the text.

Heat Energy→ energy that is created as a byproduct of energy transfers and transformations

Question 25 of 39

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What is energy required for? Choose an answer

Select one of the following:

  • Sleep

  • Synthesis & breakdown of molecules

  • Heavy labor & exercise

  • All of the above

Question 26 of 39

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Fill the blank space to complete the text.

Bioenergetics→ concept of flow through living systems like cells

Question 27 of 39

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Fill the blank space to complete the text.

Passive transport: needed: When things flow from high to low (water pressure, air pressure, water elevation, electricity)

Question 28 of 39

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Fill the blank space to complete the text.

Active transport: : When things are pumped from low to high (concentration, charge, pressure)

Question 29 of 39

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Fill the blank space to complete the text.

Osmosis: Diffusion of across permeable membrane

Question 30 of 39

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Fill the blank space to complete the text.

Contractile Vacuoles: Squeeze excess water out of a so it does not explode

Question 31 of 39

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Fill the blank spaces to complete the text.

Diffusion: movement of particles from to

Question 32 of 39

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2nd Law of Thermodynamics→ Energy transports are never 100% efficient

Select one of the following:

  • True
  • False

Question 33 of 39

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Thermodynamics: Takes in calories→comes out as heat or makes you move, grow, etc.

Select one of the following:

  • True
  • False

Question 34 of 39

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1st Law of Thermodynamics→ states that the total amount of energy in the universe is constant and conserved; i.e. there has always been and will always be exactly the same amount of energy in the universe

Select one of the following:

  • True
  • False

Question 35 of 39

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Catalyst- Breaks things up , shoves them together

Select one of the following:

  • True
  • False

Question 36 of 39

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Enzyme: A protein with a certain region called active site, will grab a particular molecule(substrait), will break up the molecules so that it could absorb into enzyme

Select one of the following:

  • True
  • False

Question 37 of 39

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Enzymes are not catalysts

Select one of the following:

  • True
  • False

Question 38 of 39

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Potential Energy→ the energy in the motion of the object

Select one of the following:

  • True
  • False

Question 39 of 39

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Kinetic Energy→ the energy in the motion of the object

Select one of the following:

  • True
  • False
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Bio Final Exam

ashleyrobinson5155
Quiz by , created about 1 year ago

Bio Final Exam

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ashleyrobinson5155
Created by ashleyrobinson5155 about 1 year ago
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