SCIN 130 Week 3 Quiz

SCIN 130 Week 3 Quiz | Assignment  Help | APUS 

Week 3 Quiz

Question 1 of 31

Which is the only substance involved in osmosis?

  A. salt

  B. alcohol

  C. sugar

  D. water

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Question 2 of 31

What are the network of protein fibers that help maintain the shape of the cell referred to as?

  A. cytoskeleton

  B. vacuole

  C. lysosome

  D. plasma membrane

  E. cytoplasm

Question 3 of 31

Which structure is used in photosynthesis?

  A. mitochondria

  B. ribosomes

  C. peroxisomes

  D. chloroplasts

.Question 4 of 31

 Which structure carries out oxidation reactions that break down fatty acids and amino acids?

  A. mitochondria

  B. peroxisomes

  C. ribosomes

  D. chloroplasts

Question 5 of 31

Which is typically the most prominent organelle in a eukaryotic cell?

  A. lysosome

  B. mitochondria

  C. peroxisome

  D. nucleus

 Question 6 of 31

Which structure is responsible making ATP, the cell’s main energy-carrying molecule?

  A. peroxisomes

  B. ribosomes

  C. mitochondria

  D. chloroplasts

 Question 7 of 31

 Rubisco is involved in photosynthesis, and helps to speed up the reaction from carbon dioxide to water. What is the generic term for rubisco?

  A. substrate

  B. exergonic

  C. enzyme

  D. endergonic

Question 8 of 31

 What kind of energy does a slow moving wrecking ball contain?

  A. chemical energy

  B. kinetic energy

  C. heat energy

  D. potential energy

  E. light energy

Question 9 of 31

If a molecule binds to an active site in an enzyme, but it is not involved in the reaction and is simply slowing it down, what is it called?

  A. competitive inhibition

  B. active site

  C. enzyme

  D. substrate

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 Question 10 of 31

 Why can’t cells store extra free energy?

  A. it would result in a lowering of heat, which would freeze the cells

  B. they can store free energy, which is why we are able to survive

  C. it would result in an increase of heat, which would denature enzymes

  D. it would result in a lack of space, which would keep out other molecules

Question 11 of 31

 What does the first law of thermodynamics state?

  A. As temperature approaches absolute zero, the entropy approaches a constant minimum.

  B. There is and always will be the exact same amount of energy in the universe.

  C. Entropy of an isolated system tends to increase.

  D. If two systems are in equilibrium with a third, then they are in equilibrium with each other.

 Question 12 of 31

 What is the first step in the breakdown of glucose to extract energy for cell metabolism?

  A. glycolysis

  B. gluconeogenesis

  C. TCA cycle

  D. photosynthesis

Question 13 of 31

 In which plant organ does photosynthesis most commonly occur?

  A. the leaf

  B. the root

  C. the stem

  D. the flower

Question 14 of 31

 On hot, dry days, plants normally close their stomata to conserve water. What effect would this have on photosynthesis?

  A. It would increase.

  B. It would decrease.

  C. It would remain the same.

  D. It would stop altogether.

Question 15 of 31

 If we think of the electromagnetic spectrum, which type of wavelength has the most energy?

  A. long, tight waves

  B. short, tight waves

  C. short, stretched waves

  D. long, stretched waves

Question 16 of 31

 What are the two main byproducts of cellular respiration?

  A. Carbon Dioxide and Water

  B. Glucose and Oxygen

  C. Glucose and Carbon Dioxide

  D. Carbon Dioxide and Oxygen

  E. Oxygen and Water

 Question 17 of 31

 After a photon strikes photosystem II, photosynthesis is initiated. The energy then travels through the electron transport chain, and pumps what into the thylakoid space?

  A. hydrogen

  B. nitrogen

  C. carbon

  D. oxygen

 Question 18 of 31

 During the light-dependent reactions of photosynthesis, what are the two energy-carrier molecules that absorb the energy from sunlight?

  A. ADP and NADPH

  B. ATP and NADPH

  C. ADP and ATP

  D. ATP and water

  E. NADPH and water

Question 19 of 31

 What is the vacuole in plant cells?

  A. it is the site of RNA synthesis, and DNA storage

  B. it plays a role in the packaging and shipping of protein products

  C. space in the middle of plant cells that contains water and macromolecule storage

  D. it is found in side the nucleus, and makes ribosomes

  E. it plays a role in capturing the energy of the sun to create carbohydrates or sugar

 Question 20 of 31

 What is the plasma membrane in prokaryotes?

  A. area of cytoplasm that contain the DNA molecule

  B. a long whip-like structure that propels the cell into motion

  C. circular pieces of DNA that contain genes but not involved in cell reproduction

  D. made of two lipid layers which make the inside hydrophilic and the outside hydrophobic

  E. hair-like structures found on the surface of some prokaryotes

Question 21 of 31

What is the chloroplast in plant cells?

  A. it plays a role in capturing the energy of the sun to create carbohydrates or sugar

  B. it is the site of RNA synthesis, and DNA storage

  C. it is found in side the nucleus, and makes ribosomes

  D. it plays a role in the packaging and shipping of protein products

  E. space in the middle of plant cells that contains water and macromolecule storage

Question 22 of 31

What is the term for a natural phenomenon that is generally accepted due to a large body of empirical data through repeated

experiments; it usually describes how or why something happens?

  A. Alternative Hypothesis

  B. Scientific Law

  C. Scientific Theory

  D. Null Hypothesis

Question 23 of 31

 What attribute should a hypothesis contain so that it lends itself to an objective experiment that relies on quantitative observations and data?

  A. be testable

  B. many errors

  C. not proven

  D. connect variables

Question 24 of 31

 What type of reasoning while formulating a hypothesis uses an incomplete series of observations to develop the likeliest possible explanation?

  A. Inductive

  B. Deductive

  C. Positive

  D. Abductive

Question 25 of 31

 What type of stain did we use for the fish?

  A. Acid Fuschin

  B. Alizarin Red

  C. Toluidine Blue

  D. Reticulin Stain

 Question 26 of 31

What is the purpose of the pelvic spines in stickleback?

  A. To make it more difficult for predators to swallow them

  B. To aid in swimming quickly through the ocean water

  C. To make copulation easier for the female

  D. To slow down when swimming through lots of seaweed

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 Question 27 of 31

 After your fish samples are stained, and then destained, what solution are they stored in?

  A. Alizarin Red

  B. They are allowed to dry

  C. Water

  D. 50% Isopropyl Alcohol

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Question 28 of 31

 The pelvic spines in the stickleback are modified what?

  A. legs

  B. gills

  C. fins

  D. limbs

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 Question 29 of 31

 Why do we need to have labels inside of the jars with the fish?

  A. To keep dirty fingerprints off the an outside label

  B. To ensure we always know what sample we are working with

  C. So that predators cannot find them

  D. In case we drop the container and the glass shatters

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Question 30 of 31

In a few sentences, what was the overall purpose of the lab for this week? You should include 1-2 sentences on the methods and then the overall reason.

 Question 31 of 31

Please upload your completed Lab Packet for this week. Make sure your name is on the top in the space provided.