FREE BIOLOGY AND STUDY GAMES ABOUT BIOLOGY QUIZ

PDF Download

FREE BIOLOGY AND STUDY GAMES ABOUT BIOLOGY QUIZ

3 EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -109 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Wavelengths are...

Answer:

the distance between crests of electromagnetic waves.Question 2: The Calvin Cycle in most plants occurs during _______ because that is when the light reactions can provide the ____ and ____ the Calvin Cycle requires.

Answer:

daylight; NADPH; ATP Question 3: CAM stands for:

Answer:

Crassulacean Acid Metabolism

Question 4: Photosystem is located in the ________.

Answer:

thylakoid membrane

Question 5: A leaf looks green because of ....

Answer:

chlorophyll

Question 6: Chlorophyll B & Carotenoids

Answer:

are accessory pigments

Question 7: Carotenoids...

Answer:

absorb/dissipate excessive light energy that would otherwise damage chlorophyll or interact with oxygen to form reactive oxidative molecules that could damage the cell.Question 8: The Calvin Cycle has three phases:

Answer:

Carbon Fixation; Reduction; Regeneration of Rubisco/CO2 acceptor

Question 9: C4 photosynthesis minimizes ______ and _____ sugar production.

Answer:

photorespiration; increases Question 10: Carbon Fixation: The enzyme responsible for catalyzing this reaction is called...

Answer:

RuBP Carboxylase (Rubisco) Question 11: Photorespiration acts to neutralize otherwise damaging products of the light reactions. True/False?

Answer:

True Question 12: The light harvesting complexes act as an ______ for the reaction-center complex.

Answer:

antenna

Question 13: C4 Plants belong to the ____ family.

Answer:

sugarcane Question 14: A typical mesophyll cell has ___-___ chloroplasts, each measuring about ___-___ micrometers by ___-___ micrometers.

Answer:

30-40; 2-4; 4-7

Question 15: How many chloroplasts are there per square millimeters of leaf surfaces?

Answer:

about half a million chloroplasts.Question 16: Water is ___ and electrons are transferred with ___ from water to ____ reducing it to _____.

Answer:

split; H+; CO2; sugar

Question 17: Wavelengths that are absorbed...

Answer:

disappear

Question 18: Chlorophyll A

Answer:

participates directly in the light reactions; absorbs best in the red & violet-blue wavelenghts and worst in the green.

Question 19: All green parts of a plant have...

Answer:

chloroplasts.

Question 20: Photosystem 2 (PS 2)

Answer:

also called, P680...as it absorbs 680 wavelength of light the best.

Question 21: Photorespiration ____ ATP, unlike normal respiration.

Answer:

consumes

Question 22: Photon

Answer:

discrete particle (light wave) Question 23: Photosynthesis Effective Wavelengths: 400-500 nm

Answer:

violet-blue Question 24: Each chloroplast has two membranes around a central aqueous space called:

Answer:

stroma

Question 25: Autotrophs

Answer:

self-feeders; they sustain themselves from the organic molecules they produce from CO2 and other inorganic raw materials obtained from the environment.Question 26: The electrons lose ____ energy as they "fall" down the electron transport chain toward electronegative oxygen, and the mitochondrion harnesses that energy to synthesize ____.

Answer:

potential; ATP Question 27: Light energy is initially converted to ______ in the form of 2 compounds: NADPH & ATP.

Answer:

chemical energy.Question 28: CO2+H2O+light energy ---> [CH2O]+O2 represents the general formula for a:

Answer:

carbohydrate