Check on Learning #2

The process fueled by the sun, where CO₂ and water are transformed into carbohydrates

• respiration

• oxidation

• reduction

• photosynthesis

Which statement best describes photosynthesis and respiration?

• Autotrophs carry out photosynthesis, while autotrophs and heterotrophs carry out respiration

• Autotrophs and heterotrophs both carry out photosynthesis and then respiration

• In autotrophs, photosynthesis requires oxygen, and respiration requires carbon dioxide

• Only autotrophs carry out photosynthesis, while only heterotrophs carry out respiration

How are the reactions of photosynthesis and cellular respiration interconnected?

• The reactions are opposites of one another, each using the products of the other as reactants.

• Both reactions require ATP as the energy source, but photosynthesis only happens in plants.

• Every organism carries out both processes at the same time but in different parts of the organism.

• Animals rely on photosynthesis in plants, and plants rely on respiration as the source for their ATP.

The reactants for a biochemical reaction are 6CO₂ + 6H₂O. What will be the products for this reaction,and where does the reaction take place?

• C₆H₁₂O₆ +6O₂ , chloroplast

• C₆H₁₂O₆ +6O₂ , mitochondria

• C₆H₁₂O₆ +6CO₂ , chloroplast

• C₆H₁₂O₆ +6CO₂ , chloroplast

Which statement best describes cellular respiration?

• It is the metabolism of water into oxygen and hydrogen.

• It is the intake of oxygen and release of carbon dioxide.

• It is the creation of energy from oxygen and water.

• It is the conversion of food energy into a more usable form.

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

What other requirements are necessary for this reaction to occur?

• chlorophyll and nitrogen

• chlorophyll and sunlight

• sunlight and ethanol

• sunlight and nitrogen

Which factor would have the greatest effect on the cellular respiration rate of an animal?

• the intensity of sunlight

• the number of chloroplasts

• the amount of oxygen available

• the amount of water available

What molecule is represented by the letter X?

• carbon dioxide

• chlorophyll

• glucose

• water

The relatively large organelles in plant cells where nutrient storage and photosynthesis occurs is known as

• thylakoids

• lamellae

• chloroplast

• plastids

The thin, flattened sacs inside the chloroplasts are called

• thylakoids

• lamellae

• stroma

• grana