Question #1: Which of the following is an acceptable hypothesis? If an enzyme is

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Question #1: Which of the following is an acceptable hypothesis?

If an enzyme is boiled, then it will not act on the substrate to cause a reaction, because extreme heat will denature the enzyme.

Each enzyme has an optimal temperature for optimal performance.

When I boiled the enzyme, then it did not cause a reaction, because it was denatured.

The enzyme won't function at a high temperature.

Question #2: ________ provides needed usable energy while ________ provides necessary hydrogen ions and electrons.

NADPH, ATP

ATP, NADPH

NADP, NADPH

ADP, NADH

Question #3: Carbon dioxide in water causes water to become:

Neutral

Acidic

Basic

No answer text provided.

Question #4: The earliest form of photosynthesis still used by some bacteria is:

Cyclic photophosphorylation

Non-cyclic photophosphorylation

Calvin cycle

No answer text provided.

Question #5: Where does the light dependent reaction take place?

Thylakoid membrane

Stroma

Pigments

Stomata

Question #6: The light independent reaction takes place:

On the thylakoid membranes

In the stroma

On the pigments

On the mitochondria

Question #7: Where does photosynthesis take place in the plant cell?

Nucleus

Stomata

Chloroplasts

Mitochondria

Question #8: The green color of the leaf is due to:

Absorption of blue and yellow wavelengths by the chlorophyll

Reflection of blue and yellow wavelengths by the chlorophyll

Absorption of green wavelength by the chlorophyll

Reflection of green wavelength by the chlorophyll

Question 91 pts

Question #9: How many photosystems are there in photosynthesis?

1

2

3

4

Question #10: Each photosystem consists of molecules of the ___________ pigment chlorophyll.

Red

Green

Yellow

orange

Question #11: What is the first step of scientific research?

Ask a question

Hypothesis

Observation

Design experiment

Question 121 pts

Question #12: If two variables are correlated, this means one caused the other, but we don’t always necessarily know which of these two variables caused the other of the two variables.

True

False

Question #13: Which of the following describe or are examples of a dependent variable?

Example is time

Directly affects the independent variable

When graphing, it should be placed on the Y-axis

No answer text provided.

Question 141 pts

Question #14: Considering a leaf in an experimental chamber as described in your lab manual, if the rate of aerobic respiration is higher than the rate of photosynthesis, what should happen to the concentration of oxygen in the chamber over time?

Oxygen concentration will not change

Oxygen concentration will decrease

Oxygen concentration will increase

There is not enough information to determine the answer to this question

If an enzyme is boiled, then it will not act on the substrate to cause a reaction, because extreme heat will denature the enzyme.

Explanation / Answer

PART 1 = Thirs statemant is correct i.e When I boiled the enzyme, then it did not cause a reaction, because it was denatured.

Because Hypothesis is an idea that is suggested as the possible explanation for something. Rest all statemant are theory.

PART 2 = ATP and NADPH

because ATP provide energy for a process while NADPH provide hydrogen ion.

PART 3 = Acidic

The molecules of carbon dioxide reacted with the water, form carbonic acid which decrease the pH of solution.

PART 4 = Cyclic photophosphorylation

PART 5 = Thylakoid membrane

In photosynthesis, light-dependent reactions take place on the thylakoid membranes.

PART 6 = In Stroma.

The inside of the thylakoid membrane is called lumen, and outside the thylakoid membrane is the stroma, where the light-independent reactions (Dark reaction )take place.

PART 7 = Chloroplast

PART 8 = Reflection of green wavelength by the chlorophyll

Plants are green because their cells contain chloroplasts which have pigment chlorophyll which absorbs deep-blue and red light, but does not absorb green light which gets reflected ,causing the plant to look green.

PART 9 = 2

photosystem I and photosystem II.

PART 10 = Green

PART 11 = Observation

The scientific method has five basic steps : Make an observation. Ask a question. Form a hypothesis, and testable explanation.

PART 12 = False

PART 13 = When graphing, it should be placed on the Y-axis.

When results are plotted on graphs, the convention is to use the independent variable as the x-axis and the dependent variable as the y-axis.

PART 14 = Oxygen concentration will decrease

this case, the plant will be using more oxygen than it can produce via photosynthesis.

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