Easy
Normal
Medium
Hard
Extreme
100
Organisms that cannot make their own food and must obtain energy from external sources are called
Heterotrophs
100
If a plant died from lack of food, which structure is most likely missing or damaged?
Leaves
100
Which gas is removed from the atmosphere during photosynthesis?
Carbon dioxide
100
Carmen conducted an experiment to determine if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. Each person listened to seven different selections of music for 30 seconds each. Each person’s pulse was taken before the music and then after each 30-second interval of music. The pulses were taken again after the music selections were completed. Based on her experiment, Carmen concluded that a person’s pulse rate changed when the person listened to different types of music.
Which component is missing from Carmen’s experiment?
A control group
100
Which statement describes how photosynthesis and cellular respiration are interrelated?
Carbon dioxide and water released by cellular respiration are used in photosynthesis.
200
Which of the following structure is where cellular respiration occurs in the cell?
Mitochondria
200
What happens during photosynthesis?
Autotrophs produce carbohydrates.
200
Which of the following are the reactants of photosynthesis?
Carbon dioxide and water
200
Which process takes place in the presence of oxygen and produces nearly 20 times as much as ATP as glycolysis alone?
aerobic respiration
200
Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations?
Only species Y is anaerobic
300
What are the reactants in the equation for cellular respiration?
glucose and oxygen
300
What is the correct equation for cellular respiration?
6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy
300
Which process do the animals in the food web use to convert energy from food into ATP?
cellular respiration
300
The numbered boxes in the diagram represent which of the following?
1 - oxygen; 2 - carbon dioxide
300
potted plant is placed inside a clear, sealed vacuum container that has water pumped into it on a regular basis. The container is placed in the sun and the plant’s growth is monitored. Which statement best describes what will most likely happen to the plant over time?
The plant will die because it does not have carbon dioxide for photosynthesis
400
One of the principal compounds that living things use to store energy is
ATP
400
What function does ATP carry out in living things?
Used to capture and transfer energy
400
In which way are photosynthesis and cellular respiration different?
Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.
400
Why are there less air bubbles as the plant is place further away from the light source
because photosynthesis decreases as a plant is moved further away from a light source
400
Mike has four aquatic plants of the same size and the same species. He submerges the plants in a separate beaker filled with 200 ml of water. She then sets each beaker under a different intensity of light. Mike observes that, of the four plants, the plant in the beaker under the most intense light gives off the most gas bubbles in a 20 minute period.
Which of the following statements best explains Mike’s observations?
Photosynthesis occurs at the highest rate under the most intense light.
500
Which of the following structure is where photosynthesis occurs in the cell?
chloroplast
500
How are cellular respiration and photosynthesis related, in terms of energy?
The energy captured in photosynthesis is used to power cellular respiration.
500
Which process takes place in the presence of oxygen and produces nearly 20 times as much as ATP as glycolysis alone?
aerobic respiration
500
Two test tubes were filled with a solution of bromthymol blue. A student exhaled through a straw into each tube, and the bromthymol blue turned yellow. An aquatic green plant was placed into each tube, and the tubes were corked. One tube was placed in the dark, and one was placed in direct sunlight. The yellow solution in the tube in sunlight turned blue, while the one in the dark remained yellow. Which statement best explains why the solution in the tube placed in sunlight returned to a blue color?
Oxygen was produced by photosynthesis.
500
A weightlifter is using heavy weights in short bursts for a competition. Because his muscle cells are not able to take in enough oxygen to make very much ATP the weightlifter begins to get fatigue in his muscles. Which of the following processes is most likely going on in the muscles of the weightlifter as he competes in his event?
As the cells run out of oxygen they switch to anaerobic respiration (fermentation), which allows the cell to make small amounts of ATP in the absence of oxygen.