Explanation

The breakdown of two molecules of glucose in aerobic respiration will produce 12 molecules of carbon dioxide (CO2). 

The balanced chemical equation for aerobic respiration shows that one molecule of glucose (C6H12O6) produces six molecules of carbon dioxide (6CO2).

Therefore, if two molecules of glucose are broken down, the total number of CO2 molecules produced will be:

2 molecules of glucose * 6 molecules of CO2 per glucose = 12 molecules of CO2. 

Explanation

The pectoral girdle consists of the clavicle (collarbone) and the scapula (shoulder blade).

The sternum is part of the axial skeleton, the pelvic bone is part of the pelvic girdle, and the hyoid bone is in the neck. 

Explanation

 One gram atom of any element refers to one mole of its atoms.

- The molar mass of chlorine (Cl) is approximately 35.5 g, so:

  - One gram atom of chlorine = 1 mole of Cl atoms = 35.5 g, not 71 g (which is for Cl₂ molecules).

Explanation

Resistivity after cutting a wire in half:

Resistivity 𝜌 is a material property, independent of shape, size, or length.

When a wire is cut, resistance changes, but resistivity remains the same.

Explanation

The Van der Waals constant "a" represents the magnitude of intermolecular attractions.

A higher "a" value means stronger intermolecular forces.

- He and H₂ are very light, nonpolar, and have weak intermolecular forces.

- N₂ is also nonpolar but heavier than He and H₂.

- CH₄ (Methane) is nonpolar but larger and more polarizable, so it has stronger London dispersion forces.

→ Therefore, CH₄ has the highest "a" value among the given options. 

Explanation

Explanation

Light intensity refers to the amount of light energy reaching a plant surface per unit time.

This is a crucial factor for photosynthesis as it directly determines how much energy is available to drive the process

Higher light intensity leads to a higher rate of photosynthesis until the plant reaches its maximum capacity. 

Explanation

A nerve fibre is different from a muscle fibre due to the presence of dendrites. 

Dendrites:

These are branching extensions of a neuron that receive signals from other neurons, making them unique to nerve cells. 

Myofibrils, lines, and sarcolemma:

These are structural components found in muscle fibers, responsible for their contractile function

Explanation

Human placental lactogen and leutotrophic is a hormone responsible for lactation

Human placental lactogen (hPL) is a hormone released by the placenta during pregnancy.

Leutotrophic hormone stimulates the growth of the milk gland and secures milk only after delivery of the fetus plus the placenta. 

It gives nutrition to the fetus.

It also stimulates milk glands in the breasts for breastfeeding.

Additional information:

Lactation is the process of producing and releasing milk from the mammary glands in your breasts.

It begins in pregnancy when hormonal changes signal the mammary glands to make milk in preparation for the birth of your baby.

Explanation

 A vicinal diol (or vic-diol) has two hydroxyl groups (OH) attached to adjacent carbon atoms.

Trimethylene glycol has the chemical formula HOCH2CH2CH2OH,

Where the two OH groups are on neighboring carbons, making it a vic-diol.