SCIN 130 AMU Quiz 3 Introduction to Biology American Military University assistance is available on Domyclass
SCIN 130 AMU Quiz 3
| Part 1 of 8 – Chapter 3
Question 1 of 31
One feature of a eukaryote that is not found in a prokaryote includes what?
A. membrane-bound organelles B. DNA C. a plasma membrane D. ribosomes E. cytoplasm
Question 2 of 31
Which model best describes the observations and functions of the plasma membrane?
A. cell membrane B. nuclear envelope C. phospholipid bilayer D. fluid mosaic model
Question 3 of 31
Light and dissecting microscopes are binocular. What does this mean?
A. They have one eye piece, and one lens system B. They have one lens system, that is split for each eye C. They have two eye pieces, and one lens system D. They have two separate lens systems, one for each eye
Question 4 of 31
What is it called when a substance moves from an area of high concentration to an area of low concentration until the concentration is equal across the space?
A. diffusion B. facilitated diffusion C. active transport D. osmosis
Question 5 of 31
What comprises the contents of a cell between the plasma membrane and the nuclear envelope?
A. plasma membrane B. vacuole C. cytoskeleton D. lysosome E. cytoplasm
Question 6 of 31
Which structure is responsible for protein synthesis, and is present in both eukaryotes and prokaryotes?
A. mitochondria B. chloroplasts C. peroxisomes D. ribosomes
| Part 2 of 8 – Chapter 4
Question 7 of 31
Reactions that release free energy are called what? A. potential B. kinetic C. exergonic D. endergonic
Question 8 of 31
What does the first law of thermodynamics state? A. There is and always will be the exact same amount of energy in the universe. B. As temperature approaches absolute zero, the entropy approaches a constant minimum. 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 9 of 31
Why can’t cells store extra free energy?
A. they can store free energy, which is why we are able to survive B. it would result in an increase of heat, which would denature enzymes C. it would result in a lowering of heat, which would freeze the cells D. it would result in a lack of space, which would keep out other molecules
Question 10 of 31
What is the first step in the breakdown of glucose to extract energy for cell metabolism?
A. TCA cycle B. gluconeogenesis C. photosynthesis D. glycolysis
Question 11 of 31
What kind of metabolic pathway breaks down large molecules into small ones, using energy? A. bioenergetics B. catabolic C. metabolism D. anabolic
Question 12 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. enzyme C. endergonic D. exergonic
| Part 3 of 8 – Chapter 5
Question 13 of 31
In which organelle in plants do photosystems reside? A. nucleus B. mitochondria C. thylakoids D. ribosomes
Question 14 of 31
What is the purpose of the light-dependent reactions of photosynthesis? A. To convert light energy into chemical energy. B. To convert chemical energy into light energy. C. To convert light energy into color. D. To convert chemical energy into color.
Question 15 of 31
During the light-dependent reactions of photosynthesis, where does the oxygen come from? A. the hydrolysis of glucose B. the loss of pigment C. the loss of sugar D. the hydrolysis of water
Question 16 of 31
There are three stages in the Calvin cycle; what are they in the proper order? A. Carbon Fixation, Reduction, Regeneration of RuBP B. Reduction, Carbon Fixation, Loss of RuBP C. Reduction, Loss of chlorophyll, Carotenoids D. Loss of chlorophyll, Regeneration of RuBP, Reduction
Question 17 of 31
Carbon fixation in plants is catalyzed by what enzyme? A. ATP B. RuBisCo C. Carbon Dioxide D. NADPH E. Ribulose Bisphosphate
Question 18 of 31
What are the two main byproducts of photosynthesis? A. Carbon Dioxide and Oxygen B. Glucose and Carbon Dioxide C. Carbon Dioxide and Water D. Glucose and Oxygen E. Oxygen and Water
| Part 4 of 8 – Lecture ELF
Question 19 of 31
What is the nucleoid in prokaryotes? A. circular pieces of DNA that contain genes but not involved in cell reproduction B. hair-like structures found on the surface of some prokaryotes C. a long whip-like structure that propels the cell into motion D. area of cytoplasm that contain the DNA molecule E. made of two lipid layers which make the inside hydrophilic and the outside hydrophobic
Question 20 of 31
What is the result of mitosis? A. One cell becomes two non-identical cells B. Two cells become four non-identical cells C. Two cells become four identical cells D. One cell becomes two identical cells
Question 21 of 31
Which is an example of a prokaryotic cell?
A. Fungi B. Plants C. Bacteria D. Algae E. Animals
| Part 5 of 8 – Lab Material
Question 22 of 31
After your fish samples are stained, and then destained, what solution are they stored in? A. Water B. 50% Isopropyl Alcohol C. Alizarin Red D. They are allowed to dry
Question 23 of 31
In which lake were there more stickleback with pelvic spines? A. Frog Lake B. Vixen Lake C. Bear Paw Lake D. Coyote Lake E. Rabbit Foot Lake
Question 24 of 31
What is the purpose of the pelvic spines in stickleback? A. To slow down when swimming through lots of seaweed B. To make it more difficult for predators to swallow them C. To aid in swimming quickly through the ocean water D. To make copulation easier for the female
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
Why do we need to have labels inside of the jars with the fish? A. In case we drop the container and the glass shatters B. So that predators cannot find them C. To ensure we always know what sample we are working with D. To keep dirty fingerprints off the an outside label
| Part 6 of 8 – Part 3: Lab ELF
Question 27 of 31
A hypothesis should suggest a relationship between what two variables the researcher will test? A. dependent and inductive B. dependent and independent C. independent and deductive D. deductive and inductive
Question 28 of 31
What is a good generic definition of a hypothesis? A. A prediction concerning a natural phenomenon based on personal observations in the natural world. B. An educated guess or expected answer to a scientific question based on prior knowledge and observation. C. A theory that can easily be proven by conducting a few simple experiments. D. A combination of politics and scientific research to answer important questions for the general population.
Question 29 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. not proven B. be testable C. connect variables D. many errors
| Part 7 of 8 – Lab Essay
Question 30 of 31
In 2-3 sentences, what was the overall purpose of the lab for this week? The overall purpose of the lab this week was learning to identify spines in sticklebacks. key concepts learned in this lab included as to how the organisms adapt to the environment they are in as well as the benefits of fossils in the study of evolution.
| Part 8 of 8 – Lab Upload
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.