Photosynthesis and Cellular Respiration Short Answer

What is the relationship between photosynthesis and cellular respiration?

Photosynthesis generates glucose and oxygen from carbon dioxide, water, and sunlight, which then the glucose and oxygen are reactants for cellular respiration which releases carbon dioxide, water, and energy. The energy is used by the body, and the carbon dioxide and water, along with new energy obtained from food consumed, goes back to photosynthesis.

What is the role of chlorophyll in photosynthesis? What happens to chlorophyll in the fall?

The chlorophyll absorbs the pigment which is used to absorb light, also taking in all colors and reflecting off green. However, in the fall, the plants are no longer making food to save energy, which is why the chlorophyll starts to break down and the other pigments in the leaves are revealed.

What happens to plants and some unicellular organisms when there is no available oxygen?

Alchoholic fermentation

How are breathing and cellular respiration related?

Breathing brings in oxygen which is a reactant used in cellular respiration along with glucose obtained from either photosynthesis or an outer source. Also, a product of cellular respiration is carbon dioxide, which is released during the exhalation part of breathing.

Where is food made in plants and why/how?

Chloroplasts are the place where photosynthesis occurs, which are found in the leaves of trees since the leaves absorb light to make glucose. Then, it goes into cellular respiration within the mitochondria to turn the glucose into energy for the tree to life and grow.

Why does heart rate and breathing increase during physical activity? Why do your muscles sometimes burn when working out?

During physical activity, our body is breaking down the glucose obtained from food, therefore it is using up energy. Because it is using up energy, our heart rate increases to continue the oxygen flow through our bodies and we breathe to get oxygen into our bodies to help break the glucose down. When our bodies our lacking oxygen, we go through lactic acid fermentation, and it is actually the accumulation of hydrogen ions from energy during this process that increases acidity levels (lowers pH) and causes us to feel a burn.

Can photosynthesis and cellular respiration both take place in the light and dark?

First off, photosynthesis cannot take place in the dark because then the chlorophyll won't be able to absorb light, which is a necessary reactant in photosynthesis. Secondly, cellular respiration is able to take place in the light and the dark because cellular respiration is just utilizing the glucose and oxygen obtained from photosynthesis to make energy, so it doesn't necessarily need light to take place.

What happens to animals and some unicellular organisms when there is no available oxygen?

Lactic acid fermentation

Why are plants considered producers/autotrophs and animals considered consumers/heterotrophs?

Plants are producers/autotrophs because they make their own food by going through photosynthesis to convert carbon dioxide, water, and sunlight into glucose and oxygen. From there, they go through cellular respiration to turn the glucose and oxygen into ATP or energy for the cells. Animals are consumers/heterotrophs because they rely on an outer source for food instead of making their own food, and then they go through cellular respiration to convert the food into ATP or energy,

Do plants perform cellular respiration? Why or why not?

Plants indeed perform cellular respiration. The process of cellular respiration takes place in the mitochondria of the plant cell, which converts the glucose and oxygen obtained from photosynthesis into energy for the plant to use to live and grow.

Why do organisms like yeast and bacteria perform anaerobic respiration?

They perform anaerobic respiration because they are simple organisms that do not require as much oxygen, they do not have mitochondria, and they live in oxygen-free environments.