Respiration in Plants TS

Energy released by oxidation in respiration:

Refer Section 12.1, NCERT where it is stated that plants can get along without respiratory organs. What may be the reason/s for this?
I. Each plant part takes care of its own gas exchange needs
II. Plants do not present great demands for gas exchange

Which of the following would be correct regarding the comparison of fermentation and aerobic respiration?

\(
\begin{aligned}
&\text { }\\
&\begin{array}{|l|l|}
\hline \text { 1. Growing shoot apex } & \text { 2. Germinating seed } \\
\hline \text { 3. Root tip } & \text { 4. Leaf bud } \\
\hline
\end{array}
\end{aligned}
\)

The enzymatic machinery to partially oxidize glucose without the help of oxygen is present in:

Sucrose is converted into glucose and fructose by the enzyme:

Phosphorylation of glucose during glycolysis is catalysed by

The number of metabolic steps in EMP pathway where glucose undergoes partial oxidation to form two molecules of pyruvic acid is:

The net gain of number of ATP molecules during glycolysis will be:

One more intext question in Section 12.3, NCERT. The maximum concentration of alcohol in beverages that are naturally fermented is about:

\(
\begin{array}{|l|l|}
\hline 1. 5-8 \% & 2. 13-15 \% \\
\hline 3. 33-34 \% & 4. 47-49 \% \\
\hline
\end{array}
\)

What is the number of ATP molecules produced when pyruvate is converted to lactate by fermentation?

The products of fermentation do not include:

The outputs of the Krebs cycle do not include:-

\(
\begin{array}{|l|l|}
\hline \text { 1. NADP } & \text { 2. } \mathrm{FADH}_2 \\
\hline \text { 3. ATP } & \text { 4. } \mathrm{CO}_2 \\
\hline
\end{array}
\)

Oxidative decarboxylation of pyruvate produces:

\(
\begin{array}{|l|l|}
\hline \text { 1. } \mathrm{CO}_2 & \text { 2. Citrate } \\
\hline \text { 3. Acetyl-CoA } & \text { 4. G3P } \\
\hline
\end{array}
\)

A five carbon amino acid can be formed by which of the following intermediates of Krebs cycle?

The correct sequence of flow of electrons downhill in the mitochondrial electron transport chain would be:

What acts as the terminal electron acceptor when glucose is completely oxidised inside a cell in the presence of oxygen?

The respiratory pathway is best described as:

If fatty acids were to enter the respiratory pathway, they must be converted to a molecule with:

The following equation shows the complete oxidation of tripalmitin [a fatty acid] during cellular respiration. Calculate the RQ:

\(
\begin{aligned}
& 2\left(\mathrm{C}_{51} \mathrm{H}_{98} \mathrm{O}_6\right)+145 \mathrm{O}_2 \longrightarrow \\
& 102 \mathrm{CO}_2+98 \mathrm{H}_2 \mathrm{O}+\text { energy }
\end{aligned}
\)

When proteins are respiratory substrates, the respiratory quotient is about:

When proteins are respiratory substrates, the respiratory quotient is about:

The three boxes in this diagram represent the three major biosynthetic pathways in aerobic respiration. Arrows represent net reactants or products.

Arrows numbered 4,8,12 can all be

Consider the steps of glycolysis given in the diagram:

What is true about reaction 1 ?
I. The reaction is a key regulatory point and is also the rate-limiting step.
II. The reaction is freely reversible.

The overall goal of glycolysis, Krebs cycle and the electron transport system is the formation of:

Pyruvate dehydrogenase activity during aerobic respiration requires :-

Which of these statements is incorrect?

Which of the following yield maximum energy:-

In which one of the following do the two names refer to one and the same thing :-

When an electron is shifted to a more electronegative atom, its potential energy:

The number of molecules of carbon dioxide produced by three turns of the Krebs cycle would be:

The correct sequence of electron flow during aerobic respiration would be:

Electron is donated to the mitochondrial ETC at the lowest energy level by:

When electron pass downhill in the ETC, the energy released is used to pump protons into:

ATP synthesis during oxidative phosphorylation in mitochondria is directly driven by:

ATP synthase is located in the mitochondrial:

Let us say there are 30 NADH and \( \mathrm{FADH}_2 \) in a mitochondrion. What is the maximum number of ATP generated if all dinucleotides are used in chemiosmosis?

Chemiosmosis is coupled to energy storage by:

Ubiquinone is:

A multienzyme complex amongst the following would be:

All the following will normally occur during the electron flow in ETS in mitochondria except:

Direct use of oxygen is in:

In the ETS in mitochondria, identify the product that is not correctly matched with its number:

Fats and proteins can also provide us energy. For this to happen:

Maximum energy can be released during the oxidation of:

Match the following and choose the correct option from those given below.

\(
\begin{array}{|l|l|l|l|}
\hline & \text { Column A } & & \text { Column B } \\
\hline \text { A. } & \text { Molecular oxygen } & \text { 1. } & \alpha \text {-Ketoglutaric acid } \\
\hline \text { B. } & \text { Electron acceptor } & \text { 2. } & \text { Hydrogen acceptor } \\
\hline \text { C. } & \text { Pyruvate dehydrogenase } & \text { 3. } & \text { Cytochrome C } \\
\hline \text { D. } & \text { Decarboxylation } & \text { 4. } & \text { Acetyl CoA } \\
\hline
\end{array}
\)

\(
\begin{array}{|l|l|l|l|l|}
\hline
\text{Options:} & A & B & C & D \\
\hline
1. & 2 & 3 & 4 & 1 \\
\hline
2. & 3 & 4 & 2 & 1 \\
\hline
3. & 2 & 1 & 3 & 4 \\
\hline
4. & 4 & 3 & 1 & 2 \\
\hline
\end{array}
\)

In the citric acid cycle:

For aerobic cellular respiration, identify the correct matched row:

\[
\begin{array}{|l|l|l|l|}
\hline
& \text{Phase} & \text{Cost, per glucose} & \text{Gain, per glucose} \\
\hline
1. & \text{Glycolysis} & 2\ \mathrm{ATP} & 4\ \mathrm{ATP},\ 1\ \mathrm{NADH} \\
\hline
2. & \text{Oxidation of pyruvic acid} & 4\ \mathrm{ATP} & 2\ \mathrm{NADH} \\
\hline
3. & \text{Krebs cycle} & 2\ \mathrm{ATP} & 2\ \mathrm{ATP},\ 6\ \mathrm{NADH},\ 1\ \mathrm{FADH}_2 \\
\hline
4. & \text{Electron transport} & 2\ \mathrm{ATP} & 34\ \mathrm{ATP} \\
\hline
\end{array}
\]

The processes that occur in the cytosol eukaryotic cell is/are:
I. glycolysis
II. fermentation
III. oxidation of pyruvate to acetyl CoA

The enzyme lactate dehydrogenase catalyses:

In the citric acid cycle, a molecule of GTP is formed during the conversion of: