CW: Day 8 Cumulative Review!

CW: Day 8 Cumulative Review!

Lets practice some TNReady questions!

Poll

How confident are you feeling for TNReady? Rate yourself 1-5 with 1 being not confident at all and 5 being you feel like your ace it!

• 1

• 2

• 3

• 4

• 5

Cells Section

#1-15 (don't forget to record your score on your word doc)

Poll

Cells are a large portion of the TN ready questions!

Multiple Choice

1. Which statement best supports the idea that eukaryotic cells evolved after

prokaryotic cells

• Eukaryotic cells are much smaller in size than prokaryotic cells

• Eukaryotic cells are more common in the environment than prokaryotic cells

• Eukaryotic cells are more complex than prokaryotic cells

• Eukaryotic cells require less energy than prokaryotic cells

Multiple Choice

2. Cells regulate chemical reactions in order to produce things they need to grow and survive. What type of molecule is MOST responsible for regulating chemical reactions inside cells

• lipids

• enzymes

• vitamins

• carbohydrates

Multiple Choice

3. Which of the following pictures is the cell organelle known as the nucleus?

Look at the chart above and write down the trend you see for Surface area to Volume ratio

Multiple Choice

4. Based on the data table on the last slide, which BEST describes why cells divide when they reach a certain size

• The surface area-volume ratio of a cell remains constant during growth

• the surface area of a cell increases more than its volume during growth

• the volume of a cell increases more than its surface area during growth

• the volume of a cell increases as the surface area decreases during growth

Multiple Choice

5. Some protein channels in a cell membrane can use energy to change their shape to allow certain molecules to pass through the membrane. This is an example of

• facilitated transport

• diffusion

• exocytosis

• active transport

Multiple Choice

6. Cells are able to pump

• the destruction of electrons within the cell

• A drop in temperature outside the cell

• an expenditure of energy by the cell

• a vacuole formation within the cell

Multiple Choice

7. The energy necessary to move sodium ions (large) across a cell membrane comes from

• the movement of water

• the use of ATP

• the manufacturing of RNA

• the replication of DNA

Multiple Choice

8. Which statement about eukaryotes is TRUE

• Eukaryotes have membrane bound organelles

• Eukaryotes lack membrane bound organelles

• Eukaryotes are simple cells

• Eukaryotes lack a nucleus

Starch Test

Using iodine to detect starch

Multiple Choice

9. What color will a sample turn if starch is present

• orange or red

• yellow or green

• dark blue or black

• light red or pink

The diagram to the right shows a cellular process that requires energy

Multiple Choice

10. What process (shown on last slide) allowed molecule A to leave the cell

• osmosis

• diffusion

• passive transport

• active transport

If you have gotten 5 right

Raise your hand and give a thumbs up!

Multiple Select

11. Which of the following is a type of transport cells use

• active transport

• passive transport

• group transport

• not all cells use transport

Fill in the Blank

12. _______ is the cell organelle that holds DNA

Multiple Select

13.Which of the following are steps in DNA replication

• transcription

• coding

• translation

• cloning

Multiple Choice

14. Which one of these is an example of a prokaryotic cell

• animal

• plant

• bacteria

• all cells are prokaryotic

Open Ended

15. What is something that could happen if a cell organelle was missing?

Poll

How many questions did you get right on the CELLS section?

• 1-5

• 6-10

• 11+

Heredity

#16-27 will be reviewing Heredity

Multiple Choice

16. Which BEST explains how the process of meiosis contributes to genetic variation

• by producing diploid cells that contain an exact copy of one diploid cell's DNA

• by producing haploid cells with a random combination of alelles from one diploid cell

• by producing diploid cells that contain the alleles from only two diploid cells

• by producing haploid cells that contain DNA from two diploid cells

Multiple Select

16. What are the four nitrogenous bases in DNA

• adenine

• cystosine

• uracil

• thymine

• guanine

Multiple Select

17. What are the four nitrogenous bases found in RNA

• uracil

• thymine

• adenine

• guanine

• cytosine

Multiple Choice

18. What element is found in a nitrogenous base?

• phophorus

• glucose

• aluminum

• nitrogen

Multiple Choice

19.In order to ensure an exact copy of DNA is passed on, replication must occur before

• electron transfer

• mitosis

• protein synthesis

• glycolysis

Multiple Choice

20. What is the complementary RNA strand to the DNA strand " GCGTTACCT"

• CGCUUTCCT

• CGCAAUGGA

• GCGUUACCU

• CGCAATGGA

Multiple Choice

21. In humans the allele for having freckles (F) is dominant to the allele for not having freckles (f). With mom being FF and father being Ff, what is the probability that a child will be heterozygous for freckles

• 25%

• 50%

• 75%

• 100%

Open Ended

Explain your answer for #21

Multiple Choice

23. A seed company was experimenting with different types of plant stems. Some of the plants they were working with had weak stems and a low survival rate. They crossed plants with weak stems with plants that had strong stems and produced offspring that all had strong stems. Based on these results, the allele for having strong stems is

• dominant

• recessive

• sex linked

• co-dominant

Multiple Choice

24. What mode of inheritance was shown on the last slide?

• autosomal dominant

• X linked recessive

• autosomal recessive

• X linked dominant

Multiple Select

25. Which sex chromosomes are matched properly?

• XX-male

• XY-female

• XX-female

• XY-male

Multiple Select

26. Which two of these shows dominant traits?

• Bb (brown hair)

• bb (blonde hair)

Poll

27. Which is an example of a genotype

• BB

• brown hair

• blonde hair

• your eye color

Ecosystems

#28-40 will review ecosystems

Multiple Choice

28. Over a period of time, the average temperature of a particular region significantly decreases, resulting in longer winters with increased snowfall. As a result, the majority coat color of a rabbit population has changed from brown to white. Which best explains this change in coat color among the rabbit population?

• white coat color provides more warmth than brown coat color

• rabbits with white coat color are less visible to predators

• Geographic isolation separated the two populations and resulted in a species with different coat colors

• genetic mutation caused a change in the dominant allele, resulting in white as the dominant coat color

Multiple Choice

29. Which population would be best suited for adapting to an environment that undergoes a sudden change in climate

• a population with phenotypes

• a population with a higher number of males and females

• a population with individuals that all express dominant traits

• a population with a high rate of emigration

Multiple Choice

30. Geneticists have discovered that cheetahs share 99% of the same genes, resulting in an extremely low genetic diversity in the cheetah populations of the world. Which is the most likely result of this lack of genetic diversity

• reduced ability to adapt to a changing environment

• lengthened reproductive cycles

• decreased rates of allele mutations

• increased rate of expression of dominant traits

Multiple Choice

31. The number of migratory birds along the main migration corridors has been declining in recent years. Vulnerable to environmental changes, migratory birds, such as the Canada Warbler, are dependent on stopover sites to rest and refuel as they make their long journey from northern Canada to South America. The cause of the overall decline in migratory birds is complex and specific to certain species. However, it is a reflection of a larger environmental problem

• tied to the loss of habitats the birds need for resources

• related to an increase in the number of bird predators

• tied to the competition among nonmigratory bird species

• related to an increase in the number of bird watchers

Multiple Choice

32. A bird eats a worm, who is the predator?

• worm

• the bird AND the worm

• bird

• Neither the bird or the worm

Poll

How many questions have you gotten right?

• 5-10

• 11-20

• 21-30+

Multiple Choice

33. What is an example of an abiotic element that may change an area?

• introducing a new type of grass to the prairie

• water flooding a prairie

• two bird species competing for the nest habitat

• uncontrollable mold growth on trees

Multiple Choice

34. At each level of the energy pyramid, only ___% of the available energy is passed to the next consumer

• 1%

• 5%

• 10%

• 50%

Multiple Choice

35. What was the picture on the last slide?

• Food chain

• predator prey interaction

• mutualism

• food web

Multiple Choice

36. The arrows on the food web on the last slide shows

• wrens get their energy from the thistle

• rabbits give their energy to the caterpillar

• the lizard gives its energy to the hawk

• there is no relationship between the arrows and the transfer of energy

Multiple Choice

37. If the hawk in the picture on the last slide died, what organism would consume it?

• Primary consumer

• Producer

• Decomposer

• Herbivore

Multiple Choice

38. What abiotic factor that provides the ultimate source of energy is missing from the diagram on the last slide

• rocks

• food

• sun

• wind

Multiple Choice

39. What is the difference between a food chain and a food web?

• There is no difference between a food chain and. afood web

• A food chain shows how each organism is dependent on the next as a source of food, where as a web shows interlocking and interdependent food chains

• A food web shows how each organism is dependent on the next as a source of food, where as a chain shows interlocking and interdependent food chains

• A food web shows the trophic levels where a food chain doesn't

Poll

How many questions have you gotten right?

• 5+

• >10

• >20

• >30

Poll

40. Which one of these is a food chain?

Scientific Method

#41-50 will review Scientific Method

Multiple Choice

41. A company has produced an absorbent polymer that helps remove oil from contaminated ecosystems. However, this polymer is expensive to produce in mass quantities. Which statement best explains how this technology is beneficial, even though it is expensive to produce

• it reduces the likelihood of oil spills

• it ensures the survival of endangered species

• it helps the environment return to a healthy state

• it produces clean drinking water for human consumption

Multiple Choice

42. A biology class is investigating whether the amount of dissolved oxygen in an aquarium changes when water temperature changes. They set up two aquariums,

one as a control and the second as the variable. They will record the dissolved oxygen content over a 3-month period using an oxygen monitor. What other tool is

necessary to conduct this investigation

• PH meter

• microscope

• thermometer

• graduated cylinder

Multiple Choice

43. After looking at the last slide, the shape of the lines e on the graph indicate that nitrogen

• is a toxin to algae

• is used by algae as a nutrient

• supports the growth of algae competitors

• prevents overgrowth of algae

Poll

44. Which is NOT a step of the scientific method?

• Develop a hypothesis

• solve a problem

• ask a question

• communicate results

For questions 45-49

In 1887 a strange nerve disease, called beriberi, attacked the people in the Dutch East Indies. Symptoms of the disease included weakness and loss of appetite; victims often died of heart failure. Scientists thought the disease might be caused by bacteria so they injected chickens with bacteria from the blood of patients with beriberi. The injected chickens became sick. However, so did a group of chickens that were not injected with bacteria.

For questions #45-49

One of the scientists, Dr. Eijkman, noticed something unusual about the chickens’ diet. Before the experiment, all the chickens had eaten whole-grain rice, but during the experiment, the chickens were fed polished rice. Dr. Eijkman researched this interesting case and found that polished rice lacked thiamine.

Multiple Choice

45. What is one potential hypothesis that Dr. Eijkman may have had

• He didn't have a hypothesis

• His hypothesis had the cause of the bacteria in it

• I think that if the chickens ate polished rice, then they would die

• I think that if the chickens ate whole grain rice, then they would die

Open Ended

46. How could we test Dr. Eijkmans hypothesis?

Multiple Choice

47. What could be a potential cause of death for the chickens

• their diet

• their exercise

• their environment

• their farmers

Poll

48. A hypothesis MUST be right

Poll

49. Can you revise a hypothesis and retest?

• Yes!

• No

Poll

50. Scientists always choose to research problems they can solve

• Yes

• No

• Sometimes