Ch 4 Test Review

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What are three parts of ATP?

Adenine, Ribose, and Phosphate groups

Which of the following is inside the thylakoid membrane?

All of the above

Organisms and plants that make their own food are...

Autotrophs

Which of the following is a reactant in photosynthesis?

CO₂

Which of the following molecules found in the food we eat is most commonly broken down to make ATP?

Carbohydrates

Which of the following is a product of the Krebs Cycle?

Carbon Dioxide

Which of the following best describes the molecules labeled B in Figure 4.1?

Carbon dioxide entering the Calvin Cycle

Which process is best represented by Glucose + Oxygen →→ CO₂ + Water

Cellular respiration

Which process would bacteria living near a heat vent on the ocean floor use to build carbon-based molecules such as sugar?

Chemosynthesis

Plants gather the sun's energy with light absorbing molecules called...

Chloroplasts

Write the equation for cellular respiration.

C₆H₁₂O₆ + 6O₂ →→→ 6CO₂ + 6H₂O + energy

Which of the following is best shown by figure 4.2 below?

Electron transport chain

In which process is lactic acid formed when there's not enough oxygen present for cellular respiration to take place?

Fermentation

Which process allows glycolysis to continue without oxygen?

Fermentation

Compare the storage capacity of ATP and glucose. How does the cell use each of these molecules to store energy?

Glucose stores 90 times more energy than an ATP molecule. Glucose is used to store large amounts of energy for long periods. ATP makes energy as needed and stores it to be used within a few seconds of being made.

Before cellular respiration, glucose must be broken down by the process of...

Glycolysis

What is the name of the process that breaks glucose down into pyruvate that is used in cellular respiration?

Glycolysis

Which region of the spectrum is not absorbed well by chlorophyll?

Green

Organisms that cannot make their own food and must obtain energy from foods they eat are called...

Heterotrophs

Which organisms use alcoholic fermentation to allow fermentation to continue to produce ATP?

Yeasts

Which chemical equation best represents photosynthesis?

6CO₂ + 6H₂O →→→ C₆H₁₂O₆ + 6O₂

Which of the following directly provides the energy needed for cell functions?

A phosphate group is removed from ATP

A granum is...

A stack of thylakoids

Which molecules carry chemical energy that cells use for their functions?

ATP

List high energy molecules that transfer energy.

ATP and NADPH

Where in the chloroplast is chlorophyll found?

In the thylakoid

What is the name of the cycle represented by the circle in the diagram? Where does the carbon dioxide necessary for this process come from?

It is the Calvin Cycle; The carbon dioxide comes from the air around us

What does the zigzag arrow in the digram represent?

It represents energy from sunlight.

The water molecules labeled A in Figure 4.1 are going to the thylakoid to take part in which processes?

Light dependent reactions

The breakdown of which of the following provides the largest number of ATP per molecule?

Lipids

Photosynthesis is to chloroplasts as cellular respiration is to...

Mitochondria

The aerobic process of cellular respiration takes place in the...

Mitochondria

The part of cellular respiration that needs oxygen takes place inside the...

Mitochondria

A student is collecting gas given off from a plant in sunlight of 27°C. The gas is probably...

Oxygen

When pyruvate is a reactant in cellular respiration it means that...

Oxygen is present

An electron transport chain that produces ATP is part of both cellular respiration and...

Photosynthesis

Plants cannot release energy from glucose using...

Photosynthesis

Write a simple title for the diagram above.

Photosynthesis

Which is the main function of the electrons shown in Figure 4.2?

Provides energy to pump hydrogen ions

Products of photosynthesis are...

Reactants of cellular respiration

W/hat are the 2 reactants and the 2 products in the process illustrated above?

Reactants: Carbon Dioxide and Water Products: Sugar (Glucose) and Oxygen

Chemosynthesis is a process through which some organisms use energy from chemicals in their environment to build sugars in the absence of...

Sunlight

Plants take in the sun's energy by absorbing...

Sunlight

People who suffer from a heart attack have an increased ratio of lactic acid to pyruvic acid in their hearts. What does this observation say about the availability of oxygen in the heart muscle of someone who has had a heart attack? How could you use this information to screen people who might be at risk for a heart attack?

The amount of oxygen in the heart muscle of someone who has had a heart attack is decreased. Finding lactic acid in the hear shows there was a lack of oxygen caused by a form of clot, because lactic acid only appears when there is an absence of oxygen. This information suggests to screen at risk heart attack patients by testing/measuring the levels of lactic acid in parts of the heart as indication for risk of a heart attack.

How will the scientist be able to tell whether the mouse is carrying out cellular respiration?

The phenolphthalein in the flask will turn from pink to clear.

What happens to the sugars in photosynthesis?

They can be used for cellular respiration

The stroma is the region outside the...

Thylakoids

Where in plant cells are the energy-absorbing molecules for photosynthesis located?

Thylakoids

Which of the following is an autotroph?

Tree


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