Biology Cellular Respiration and Photosynthesis

A scientist places fast-growing plant in a sealed container with a measured amount of water. she hypothesizes that the plant will use up all the water with in four days. After 5 days, she observes that there is still water in the container. Which explains why water is still present.

*It is a product of cellular respiration*

In the respiration-photosynthesis cycle shown, which box contains the product of photosynthesis and reactants of cellular respiration?

1

A scientist measured dissolved oxygen (O2) levels in a pond over time. A graph showing the results of the measurements shown. Which statement is the most accurate description of the events occurring in the pond.

Aquatic plants provide additional O2 for the pond through photosynthesis from early morning until late afternoon.

Photosynthesis and cellular respiration are two major processes of carbon cycling in living organisms. Which statement correctly describes one similarity between photosynthesis and cellular respiration.

Both include reactions that transform energy.

In the respiration-photosynthesis cycle shown, what are the products of cellular respiration that belong in box 2

Carbon dioxide and water

How do cells get energy to preform their necessary functions?

Cells get energy by taking in nutrients from food.

Plant cells use sunlight to make their own food. which structure allows plant cells to perform this function?

Chloroplast

The diagram shows an energy transformation that typically occurs in plant cell plastiods. which statement best describes this role of plastids in the plant cell.

Chloroplasts transform light energy into chemical energy

Describe two differences and two similarities between photosynthesis and cellular respiration.

Differences- P is endothermic reaction as it requires energy while CR-exergonic reaction as energy is released. in P food is synthesized by capturing energy but in CR food particles are broken down to release energy. Similarities- Both processes use and produce ATP in reactions that are carried out on membranes and are controlled by enzymes.

Aerobic multicellular organisms need oxygen in order to live. Explain how a lack of oxygen can lead to the death of an aerobic organisms. Be sure your to include the role that oxygen plays in aerobics organisms.

Electrons build up in the electron transport system, halting the production of ATP.Aerobic organisms use molecular oxygen to generate chemical energy in the form of adenine triphosphate (ATP). Energy transforms cellular structure to function, a defining property of life.

what are the products in the process of photosynthesis?

Glucose and oxygen

During cellular respiration, the bonds of food molecules are broken, so energy can be released to fuel other cell processes. In order for this to occur, which of the following statements must be true?

New compounds with lower-energy bonds in food molecules are broken.

Students are using the apparatus shown to model photosynthesis in class. In order to use this as a model for all photosynthesis, which gas should be present where the diagram is labeled with a question mark?

Oxygen**

Which statement best compares the energy transformations of photosynthesis and cellular respiration?

Photosynthesis and cellular respiration both store energy in chemical bonds.

Which statement best explains why cellular respiration in plants and other organisms is dependent on photosynthesis?

Photosynthesis provides the materials that fuel cellular respiration.

Which of the following is true about plants and cellular energy?

Plants use light energy to produce food molecules during photosynthesis and obtain cellular energy form the bonds of these food molecules during cellular respiration.

A cell in the leaf of a green plant performs both photosynthesis and cellular respiration, often at the same time. Which statement best describes how these processes are related to each other?

Products of one process are used as some of the reactants for the other process.

Four students classified the main energy conversions that occur during photosynthesis and cellular respiration. Which student best classified the energy conversions that occur in the two processes?

Student 4

The above illustration shows the molecule used by some cells to temporarily store energy. The molecule is used in almost all energy. The molecule is used in almost all energy-requiring reactions in cells. This molecule could be considered the "gas" that powers a cell's "engine". What is the name of this molecule?

adenosine triphosphate

Organisms undergo many different processes in order to be able to store energy and utilize that energy. Through which of the following processes is energy stored in the form of ATP?

cellular respiration

Chloroplast contain flattened disks known as thylakiods that are stacked into grana. In the thylakiods are proteins, called chlorophyll, that...

helps capture light from the sun during the process of photosythesis.

Using a microscope, a student observes a small ,green organelle in plant cells. Which energy transformation most likely occurs first within the observed organelle.

light to chemical

Which of the cells organelles releases energy stored in food?

mitochondria

The image shows a plant cell. In which organelle do most stages of cellular respiration take place?

mitochondrion

Photosynthesis is carried out by which?

plants but not animals