Biology 9 Mid-Term Pt.1

1.

1 point

In eukaryotic cells, transcription takes place in the

Cytoplasm

Nucleus

Golgi complex

Both A and B

None of the above

2.

1 point

What major event occurs in translation

mRNA is manufactured

mRNA is decoded into a strand of tRNA

mRNA is decoded into a strand of amino acids

DNA is replicated

3.

1 point

What is the function of tRNA

to carry amino acids to the ribosome

to carry amino acids to the nucleus

to carry amino acids to the DNA

to carry amino acids to the RNA polymerase

4.

1 point

A sequence of three tRNA bases that correlate to a specific amino acid:

anticodon

codon

enzyme

triplet

5.

1 point

The process that covalently bonds amino acids into peptide bonds

hydrolysis

protein synthesis

catabolysis

dehydration synthesis

6.

1 point

In DNA:

A pairs with U

G pairs with A

A pairs with T

T pairs with C

7.

1 point

In RNA:

A pairs with T

U pairs with C

G pairs with T

U pairs with A

8.

1 point

The complementary base pairing of DNA to DNA in replication of GGAATCGATTAAG is

CCCTTACGTAATTC

CCTTAGCUAAUUC

CCUUAGCUAAUUC

CCTTAGCTAATTC

9.

1 point

The protein responsible for unzipping the DNA double helix to make a mRNA copy is

Catalase

RNA polymerase

Ribosome

Rubisco

10.

1 point

The organelle responsible for producing a net amount of ATP is the

smooth endoplasmic reticulum

mitochondrion

nucleus

chloroplast

11.

1 point

In which place is the glucose molecule slit into pyruvate?

Glycolysis

Krebs Cycle

Calvin-Benson Cycle

Electron Transport Chain

12.

1 point

A process that proceeds with oxygen is

anaerobic

fermentation

aerobic

both A and B

13.

1 point

Which process of cellular respiration releases the most ATP molecules?

glycolysis

Calvin-Benson

Electron Transport System

Krebs

14.

1 point

The net products of Glycolysis are

2 ATP & 2FADH2

2 ATP & NADH

2 NADPH

CO2 & ATP

15.

1 point

How many ATP are produced in the Krebs Cycle?

2

16-18

32-34

36-38

16.

1 point

Which of the following does not occur in the mitochondrion?

Fermentation

Krebs Cycle

Electron Transport Chain

None of the above

17.

1 point

The balanced equation for cellular respiration is

C6H12O6 + O2 → CO2 + H2O + 36-38 ATP

2C6H12O6 + 6O2 → 6CO2 + 6H2O + 36-38 ATP

C6H12O6 + 6O2 → 6CO2 + 12H2O + 36-38 ATP

C6H12O6 + 6O2 → 6CO2 + 6H2O + 36-38 ATP

18.

1 point

An important component of the equation in #17 is not present. What is the missing component and why must it be present for cellular respiration to proceed?

Enzymes are missing and they are needed in glycolysis to split the glucose into pyruvate

Enzymes are missing and are needed to reduce the ATP amount so the organism doesn't have too much energy

19.

1 point

The orderly process used to develop and answer questions about the natural world is

the exploratory method

the hypothesis method

the scientific method

experimentation

20.

1 point

Which of the following would be a testable hypothesis

plants like music

because food provides energy for brain function, students who eat before an exam have higher scores

because mice are always ruled by evil forces they tend to kill each other

red beans will always grow red flowers

21.

1 point

The part of an experiment to which all others may be compared is called the

dependent variable

control

independent variable

random variable

22.

1 point

The responding variable that is measured in an experiment is called

dependent variable

control

independent variable

random variable

23.

1 point

the variable that the scientist purposely changes in an experiment is called

independent variable

dependent variable

random variable

control variable

24.

1 point

if a theory is challenged by new evidence, which of the following could occur

the theory could by altered

the theory is accepted, not the evidence

the evidence is wrong

a vote is taken on whether to accept new evidence

25.

1 point

some chickens lay an egg every day. other chickens produce few eggs. a study is planned to examine factors that might affect the number of eggs produced by chickens. which of the following is NOT a suitable hypothesis for the study?

If the cage for chickens is larger, then they will produce more eggs

if there is more protein in the feed, then more eggs are produced

if chickens receive more hours of light, then they will produce more eggs

if more eggs are produced by chickens, then they will lose more weight

26.

1 point

A well designed experiment should have

one variable

two variables at the most

two ore more variables as long as they are different

no variables

27.

1 point

Which one of the following could by considered subjective data

the gerbil turned the wrong way in the maze three times

the gerbil was unhappy while it was in the maze

the gerbil lost two grams while it was in the maze

the fur on the gerbils legs fell off during the experiment

28.

1 point

if the results of an experiment are unexpected, what should you do?

try to fit the data to the expected outcome

repeat the experiment immediately

review your procedure and if you did something wrong, adjust and repeat

reject your hypothesis and design another

29.

1 point

if a cells concentration of solute is 0.5%, what is the concentration of the water int the cell?

100%

97.5%

99.5%

99.0%

30.

1 point

If a cell is placed in a hypotonic solution, the following event would occur:

the cell would shrink

the cell would burst

the cell would remain unchanged

the cell would remain in homeostasis

31.

1 point

which process would be required for monomers to be formed into polymers?

dehydration synthesis

hydrolysis

catabolism

metabolism

32.

1 point

when would active transport be required

when molecules diffuse across a cell membrane

when molecules are passively moving

when molecules move from an area of low to an area of high concentration

when molecules move from an area of high to an area of low concentration

33.

1 point

the three most common elements in your body are

carbon, hydrogen, and sulfur

hydrogen, oxygen, and nitrogen

carbon, nitrogen, and oxygen

hydrogen, oxygen, and carbon

34.

1 point

organic compounds are separated using the process of

dehydration synthesis

hydrolysis

isotonicity

vitalism

35.

1 point

during the process in question #34, a water molecule is

required

produced or released

both A & B

neither A, B, or C

36.

1 point

an enzyme that hydrolyzes lactose into glucose and galactose is

loctaid

lactase

maltase

sucrose

37.

1 point

Osmosis is

the random movement of ions from a low concentration to a high concentration through a semi permeable membrane

the random movement of water molecules from a low concentration to a high concentration through a semi permeable membrane

The random movement of water molecules from a high concentration to a low concentration through a permeable membrane

the random movement of water molecules from a high concentration to a low concentration through a semipermeable membrane

38.

1 point

if a cell is placed in a hypertonic solution, the water would flow

into the cell

out of the cell into the solution

both in and out of the cell equally

no movement of water would occur

39.

1 point

Which organelle is responsible for receiving and modifying molecules synthesized in the endoplasmic reticulum

actin filaments

vesicles

golgi apparatus

intermediate filaments

40.

1 point

Which organelle uses sugars to produce energy in the form of ATP for the cell?

mitochondria

lysosomes

ribosomes

rough endoplasmic reticulum

41.

1 point

you are looking at a cell under a microscope. how would you know that you were looking at a eukaryotic cell?

all of the organelles are encased in a membrane

only the endoplasmic are encased in a membrane

the DNA's not encased in a double membrane and no membrane bound organelles are present in the cell

the DNA is encased in a membrane and there are membrane-bound organelles

42.

1 point

Which organelles are responsible for the process of cellular respiration?

chloroplasts

endoplasmic reticulum

mitochondria

golgi body

43.

1 point

Which organelle is directly responsible for cell membrane synthesis (your phospholipid bilayer) and detoxification?

golgi complex

rough endoplasmic reticulum

smooth endoplasmic reticulum

all of the above

44.

1 point

Which organelle is responsible for making proteins?

smooth endoplasmic reticulum

vesicle

ribosome

golgi complex

45.

1 point

Which organelle is found only in plants?

cell membrane

chloroplasts

mitochondria

vacuole

46.

1 point

Where is the DNA in a prokaryotic cell found?

in the endoplasmic reticulum

freely floating in the cytoplasm

in a vesicle

nucleus

47.

1 point

which organelles are responsible for the process of photosynthesis?

chloroplasts

mitochondria

endoplasmic reticulum

golgi body

48.

1 point

Which organelle possesses enzymes for intracellular digestion?

endoplasmic reticulum

nucleolus

golgi complex

lysosome

49.

1 point

in which phase is the glucose molecule split into two 3-carbon molecules?

electron transport chain

krebs cycle

hydrolysis

glycolysis

50.

1 point

cellular respiration is the process by which cells convert potential energy to which energy-rich compound?

ADP

ATP

Water

Glucose

Oxygen