Objective 2 taks 10 th and 11 th grades home slide
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Objective 2…TAKS 10 th and 11 th grades Home slide. Home. Questions from TAKS regarding cell functions :. Questions from TAKS regarding DNA:. Questions from TAKS regarding genetics. Questions from TAKS regarding classification. Questions from TAKS regarding body systems.

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Objective 2 taks 10 th and 11 th grades home slide

Objective 2…TAKS 10th and 11th grades Home slide

Home

Questions from TAKS regarding cell functions :

Questions from TAKS regarding DNA:

Questions from TAKS regarding genetics

Questions from TAKS regarding classification

Questions from TAKS regarding body systems

Interactive non-TAKS quizzes on the internet

Link to 10th grade study guide

Scroll to p.265 for objective 2

Link to 11th grade study guide

Scroll to p.310 for objective 2


Cell functions

Cell functions

Home

Back to Cell functions

Go to: Osmosis

Go to: Cell Energy and parts

Go to: Cell division


Objective 2 taks 10 th and 11 th grades home slide

Back to Cell functions

Home


Objective 2 taks 10 th and 11 th grades home slide

When a sea urchin egg is removed from the ocean and placed in freshwater, the egg swells and bursts. Which of these causes water to enter the egg?

F Coagulation

G Sodium pump

H Active transport

J Osmosis

Back to Cell functions

Home

Osmosis is the movement of water through a membrane from cleaner “high concentration”

toless clean “lower concentration”.

Ocean water (because of its salt) is the lower concentration.

Freshwater (less salt) is the high concentration.

34


Objective 2 taks 10 th and 11 th grades home slide

Back to Cell functions

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Real

histamine

4. Histamine is a polar chemical that can lead to an allergic response when it is released by the body’s immune system. An antihistamine is a drug that can help prevent the allergic reactions associated with histamine. An antihistamine is a similar molecule to histamine in size, shape, and polarity. How does an antihistamine most likely prevent the effects of histamine?

A It increases the diffusion of histamine across the membranes of target cells.

B It binds to histamine receptors on the surfaces of target cells.

C It causes target cells to increase production of histamine receptors.

D It blocks histamine receptors found in the cytoplasm of target cells.

Model

histamine

antihistamine


Objective 2 taks 10 th and 11 th grades home slide

Back to Cell functions

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Objective 2 taks 10 th and 11 th grades home slide

Back to Cell functions

Home

Which would most

likely cause the liquid in Tube A to rise?

F Starch concentrations being equal on each side of the membrane

G Water passing from a region of lower starch concentration to one of higher starch concentration

H Water and starch volumes being the same

J Solute in the tubes changing from a higher temperature to a lower temperature

Starch is a solute.

Osmosis is when ‘cleaner water’ (in this case ‘distilled’) wants to go through a membrane to ‘less clean water’ (in this case, ‘starchy’).

Tube B water goes through the Dialysis membrane toward the Tube A.

Water goes from high concentration to low concentration. Or if you want to look at it from the solute point of view…the water goes from ‘less solute solution’ to ‘more solute solution.’

The solute (starch) doesn’t go through this membrane.

14


Objective 2 taks 10 th and 11 th grades home slide

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The illustration above shows a cell model with starch solutions both inside and outside the cell. In which of the following situations will the solution rise highest in the tube?


Objective 2 taks 10 th and 11 th grades home slide

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Which molecule provides most of the energy used to drive chemical reactions in cells?

F DNA

G RNA

H ATP

J ADP

30


Objective 2 taks 10 th and 11 th grades home slide

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Objective 2 taks 10 th and 11 th grades home slide

Energy conversion within an animal cell would be severely limited by removal of the

cell’s —

A mitochondria

B chloroplasts

C plastids

D lysosomes

Back to Cell functions

Home

Mitochondria use oxygen and sugar to

recharge ADP’s into ATP’s (cell energy source.)

Animal cells don’t have chloroplasts. Plants do.

Animal cells don’t have plastids (for photosynthesis.)

Lysosomes help with digestion of food & recycling.

27


Objective 2 taks 10 th and 11 th grades home slide

Why are photosynthesis and cellular respiration often considered opposites?

F Photosynthesis produces twice as many ATP molecules as cellular respiration

does.

G Water is released during photosynthesis and consumed during cellular respiration.

H Photosynthesis occurs during the day, and cellular respiration occurs at night.

J Oxygen is produced during photosynthesis and used during cellular respiration.

Back to Cell functions

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Respiration produces more ATP’s than photosynthesis.

FALSE.

Respiration occurs at all times.

18


Objective 2 taks 10 th and 11 th grades home slide

Which structure regulates gas exchange

during the processes of photosynthesis and respiration?

A Q

B R

C S

D T

Back to Cell functions

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Gases go in here!

O2

CO2

11


Objective 2 taks 10 th and 11 th grades home slide

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Amino acids are the units of proteins,

Lipids are fats.

Your stomach adds the HCl to the food.

Food provides the human body with all of the

following except —

F calories

G amino acid

H hydrochloric acid

J lipids

8


Objective 2 taks 10 th and 11 th grades home slide

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DNA molecules separate into single strands, which are then used to construct two identical strands of DNA. This process ensures that the —

A cytoplasm is in equilibrium

B mitochondria are genetically identical to

the chloroplasts

C parent cells use little ATP

D daughter cells are genetically identical to

the parent cells

21


Objective 2 taks 10 th and 11 th grades home slide

If a cat has 38 chromosomes in each of its body cells, how many chromosomes will be in each daughter cell after mitosis?

F 11

G 19

H 38

J 76

Back to Cell functions

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If it said “after meiosis” then you would half the number.

26


Objective 2 taks 10 th and 11 th grades home slide

DNA

Home

Back to DNA

Go to: DNA

Go to: Protein Synthesis

Go to: Mutations


Objective 2 taks 10 th and 11 th grades home slide

In DNA, which of the following determines the traits of an organism?

F Amount of adenine

G Number of sugars

H Sequence of nitrogen bases

J Strength of hydrogen bonds

Home

Back to DNA

38


Objective 2 taks 10 th and 11 th grades home slide

Home

Back to DNA

Which molecule is most responsible for

determining an organism’s eye color, body

structure, and cellular enzyme production?

A Complex starch

B Fatty acid

C Carbohydrate

D Deoxyribonucleic acid

DNA

45


Objective 2 taks 10 th and 11 th grades home slide

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Back to DNA

All of the following are found in a DNA

molecule except —

A carbon dioxide

B deoxyribose

C nitrogen

D phosphate

The sugar of DNA

The A’s, T’s, C’s, G’s of DNA

Part of the backbone of DNA

The nitrogenous bases of DNA

The rails of the ladder

33


Objective 2 taks 10 th and 11 th grades home slide

Home

Back to DNA


Objective 2 taks 10 th and 11 th grades home slide

Home

Back to DNA

Which of the following nucleotide base

sequences complements the section of DNA

modeled above?

F 5′UTCGCA3′

G

H 5′GCGATT3′

J 5′TTUCGC3′

5′TTAGCG3′

A’s go to T’s.

C’s go to G’s.

36


Objective 2 taks 10 th and 11 th grades home slide

Back to DNA

Home


Objective 2 taks 10 th and 11 th grades home slide

Home

Back to DNA

This chart shows the results of an experiment performed in the 1920s using a bacterial species that causes pneumonia in humans. The experiment involved several procedures using two different bacterial strains, R and S. What is a possible explanation for the results in Group 2?

A Living S-strain bacteria can transform into a pathogenic form of R-strain bacteria.

B Living R-strain bacteria are controlled by a mouse’s immune system.

C Dead S-strain bacteria can cause disease.

D Dead R-strain bacteria can confer resistance to S-strain bacteria.

9


Objective 2 taks 10 th and 11 th grades home slide

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Back to DNA


Objective 2 taks 10 th and 11 th grades home slide

Which of the following best describes the question this set of procedures was designed to answer?

A Can a substance from dead bacteria transform living bacteria?

B Can R bacterial cells survive heating?

C Can dead bacterial cells confer immunity to a living host?

D Can bacterial cells be isolated from a healthy host?

Home

Back to DNA

25


Transcription messenger rna m rna copies the dna code for the protein that needs to be made

Home

 Transcription:messenger RNA (m-RNA) copies the DNA code for the protein that needs to be made.

Back to DNA

DNA passes information to RNA during the

process of —

F transcription

G active transport

H regeneration

J osmosis

m -RNA

DNA

34


Objective 2 taks 10 th and 11 th grades home slide

If the template of a strand of DNA is 5' AGATGCATC 3', the complementary strand

will be —

F 3' TCTACGTAG 5'

G 5' CTACGTAGA 3'

H 3' AGATGCATC 5'

J 5' AGACGTCTA 3'

Home

Back to DNA

5' AGATGCATC 3',

Both are DNA. No “U’s”.

A’s go to T’s. C’s go to G’s.

24


Objective 2 taks 10 th and 11 th grades home slide

Which of these represents the DNA segment from which this section of mRNA was transcribed?

A

B TCUTTG

C GAAUCU

D UCCTGA

Home

Back to DNA

DNA A T C G

mRNA U A G C

ACTAAG

33


Objective 2 taks 10 th and 11 th grades home slide

Home

Back to DNA


Objective 2 taks 10 th and 11 th grades home slide

Home

Back to DNA


Objective 2 taks 10 th and 11 th grades home slide

Home

Back to DNA

The assembly of a messenger RNA strand that normally begins with UAC has been changed so that the newly assembled messenger RNA strand begins with UAG. Which of the following will most likely occur?

A The protein will be missing the first amino acid.

B The amino acids that make up the protein will all be different.

C The mRNA will become attached to a ribosome.

D The production of the protein will be stopped.

27


Objective 2 taks 10 th and 11 th grades home slide

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Back to DNA


Objective 2 taks 10 th and 11 th grades home slide

Home

G

A

A

AGA

Back to DNA

Use this chart for the next question.


Objective 2 taks 10 th and 11 th grades home slide

Home

Back to DNA

Mutated has one substitution.

normal

The chain above represents three codons. Which of the following changes would be expected in the amino acid chain if the mutation shown above occurred?

F The amino acid sequence would be shorter than expected.

G The identity of one amino acid would change.

H The amino acid sequence would remain unchanged.

J The identities of more than one amino acid would change.

Only if there had been a deletion of 3 or more letters.

AGA codes for arginine, and ACA codes for threonine.

AGA codes for arginine, and ACA codes for threonine.

This can happen

when only one or two letters are added or deleted.

26


Objective 2 taks 10 th and 11 th grades home slide

Mutations in DNA molecules can occur when —

F replication of DNA is exact

G a DNA enzyme attaches to an

RNA codon

H RNA codons are replaced by

DNA nucleotides

J a change occurs in DNA

nucleotide bases

Home

Back to DNA

Replication

22


Objective 2 taks 10 th and 11 th grades home slide

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Back to DNA


Objective 2 taks 10 th and 11 th grades home slide

Home

Ultraviolet radiation can cause mutations in

the DNA of skin cells that have been

overexposed to the sun. This mutated DNA

has no effect on future offspring because —

F changes in skin cell DNA are homozygous recessive

G mutations must occur within the RNA

codons

H offspring reject parental skin cells

J only changes to gamete DNA can be

inherited

Back to DNA

26


Genetics and heredity

Genetics and Heredity

Back to genetics

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Objective 2 taks 10 th and 11 th grades home slide

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Dad = GgBb and Mom = ggBB

Definitely mom will give all offspring a “B”

for green eyes.

According to the table, which of the following phenotypes would probably occur in all the offspring from the parents shown above?

F Solid gray fur

G Striped gray fur

H Green eyes

J Blue eyes

40


Objective 2 taks 10 th and 11 th grades home slide

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RrSsTtUu

24 = 16

Rr

21 = 2

RrSs RrSsTt

22 = 4 23 = 8

If an organism has the genotype RrSsTtUu, what proportion of its gametes will be RSTU?

●½,

●¼,

●1/8,

●1/16.


Objective 2 taks 10 th and 11 th grades home slide

Back to genetics

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What is a probable reason why increased uses of anitbiotics

are causing more bacteria to be resistant to those antibiotics?

A The bacteria get used to an antibiotic.

B There are always individuals in a population that

were created resistant. Those individuals

and their clones are outnumbering the non-resistant strains.


Objective 2 taks 10 th and 11 th grades home slide

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A pea plant with the genotype TtWW is

crossed with a pea plant with the genotype

ttWw. How many different genotypes can be

expressed in the offspring?

F 1

G 2

H 3

J 4

TW

tW

tW

tw

46


Objective 2 taks 10 th and 11 th grades home slide

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Objective 2 taks 10 th and 11 th grades home slide

What trait will most likely be observed in all

offspring of the above set of parents?

A Green feathers

B Yellow feathers

C Long beak

D Short beak

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The male will ensure that all the offspring green.

Half the offspring will be carriers for yellow.

Half the offspring will have long beaks but will be carriers for short.

The other half of the offspring will have short beaks.

53


Objective 2 taks 10 th and 11 th grades home slide

Back to genetics

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Objective 2 taks 10 th and 11 th grades home slide

Home

Back to genetics


Objective 2 taks 10 th and 11 th grades home slide

Back to genetics

Home


Objective 2 taks 10 th and 11 th grades home slide

Coat color in mice varies greatly, ranging

from black to grizzly gray, black-and-white,

spotted, or white. The nucleus from a body cell of a grizzly-gray mouse is fused with an egg from a black mouse from which the nucleus has been removed. The egg begins to divide and is then transplanted into a female white mouse. What will be the most likely coat color of the offspring?

F Black

G Black with white spots

H Grizzly gray

J White

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Egg and sperm from black mice.

Grizzly-gray DNA added

Black mouse

fertilized egg’s DNA removed.

36


Objective 2 taks 10 th and 11 th grades home slide

The diagram represents the chromosomes of a person with a genetic disorder caused by nondisjunction, in which the chromosomes fail to separate properly. Which chromosome set displays nondisjunction?

F 2

G 8

H 21

J 23

Home

Back to genetics

There should be 2 chromosomes

(one from the egg and one from the sperm)

in all the 23 spots.

There are 3 chromosomes instead of two.

22


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