Sage-Tips

Which type of respiration occurs first?

Glycolysis, which is the first step in all types of cellular respiration is anaerobic and does not require oxygen. If oxygen is present, the pathway will continue on to the Krebs cycle and oxidative phosphorylation. However, if oxygen is not present, some organisms can undergo fermentation to continually produce ATP.

What is the first process in both anaerobic and aerobic respiration?

The first step in both anaerobic and aerobic respiration is called glycolysis. This is the process of taking one glucose (sugar) molecule and breaking it down into pyruvate and energy (2 ATP). We will discuss this in depth during aerobic respiration. The second step in anaerobic respiration is called fermentation.

What is the correct order of stages of cellular respiration?

Thus the correct order of the stages in cellular respiration is: Glycolysis – Oxidative decarboxylation – Krebs cycle – Electron transport chain – Oxidative phosphorylation.

Which is faster aerobic or anaerobic respiration?

Aerobic respiration produces much more ATP than anaerobic respiration. Anaerobic respiration occurs more quickly than aerobic respiration.

Where does the anaerobic phase take place?

cytoplasm
While most aerobic respiration (with oxygen) takes place in the cell’s mitochondria, and anaerobic respiration (without oxygen) takes place within the cell’s cytoplasm.

What is aerobic vs anaerobic respiration?

Definition The breakdown of glucose in the presence of oxygen to produce more amount of energy is called as aerobic respiration. The breakdown of glucose in the absence of oxygen to produce energy is called as anaerobic respiration.

What is the first step in aerobic respiration?

glycolysis
Aerobic respiration is the process of producing cellular energy involving oxygen. Cells break down food in the mitochondria in a long, multistep process that produces roughly 36 ATP. The first step in is glycolysis, the second is the citric acid cycle and the third is the electron transport system.

Where do the 3 steps of cellular respiration occur?

The three main stages of cellular respiration (aerobic) would include Glycolysis in the cytoplasm, the Kreb’s Cycle in the Mitochondrial Matrix and the Electron Transport Chain in the Mitochondrial Membrane.

What is the aerobic respiration?

Listen to pronunciation. (ayr-OH-bik RES-pih-RAY-shun) A chemical process in which oxygen is used to make energy from carbohydrates (sugars). Also called aerobic metabolism, cell respiration, and oxidative metabolism.

What is the correct sequence of anaerobic respiration?

So, the correct answer is, ‘(d) $Glucose \ ghtarrow{Cytoplasm} \ Pyruvate \ ghtarrow{Cytoplasm} \ Ethanol \ + \ Carbon \ dioxide$’.

Why was anaerobic respiration sufficient when it first evolved?

Since there was little to no oxygen present when the first eukaryotic cells evolved through endosymbiosis, they could only undergo anaerobic respiration or something similar to fermentation. Producing only 2 ATP at a time was enough to keep the single cell running.

Where does aerobic respiration take place?

Mitochondria
Complete step by step answer: Mitochondria is the site where aerobic respiration occurs.

What is anaerobic respiration and how does it work?

Aerobic respiration, as the name suggests, is the process of producing the energy required by cells using oxygen. The by-product of this process produces carbon dioxide along with ATP – the energy currency of the cells. Anaerobic respiration is similar to aerobic respiration, except, the process happens without the presence of oxygen.

Does glycolysis occur in aerobic or anaerobic respiration?

This step occurs in both, aerobic as well as anaerobic respiration. Aerobic metabolism cannot take place in the absence of oxygen. Hence, cells are entirely dependent on glycolysis process to produce energy molecule ATP. The hydrogen atoms generated by glycolysis are transferred to organic molecules under these conditions.

Where does aerobic respiration take place in plants?

Aerobic respiration process takes place in all multicellular organisms including animals, plants and other living organisms. During the respiration process in plants, the oxygen gas enters the plant cells through the stomata, which is found in the epidermis of leaves and stem of a plant. With the help of the photosynthesis process,

How much energy is released during the process of aerobic respiration?

The 2900 kJ of energy is released during the process of breaking the glucose molecule and in turn, this energy is used to produce ATP – Adenosine Triphosphate molecules which are used by the system for various purposes. Aerobic respiration process takes place in all multicellular organisms including animals, plants and other living organisms.