How does carbon dioxide from the air enter the leaves of a plant to be used in photosynthesis?

Read the following and answer any four questions from $(i)$ to $(v)$.
The green plants make their food through photosynthesis and are therefore called autotrophs. All other organisms depend upon green plants for food and are referred to as heterotrophs. Green plants carry out photosynthesis by using light energy of the sun. The first phase of reactions is directly light-driven, therefore called light reactions. The second phase of reactions is not directly light-driven but is dependent on the products of light reactions and is called dark reactions.
$(i)$ Which of the following is produced during the light phase of photosynthesis?
$(a)$ $ATP$
$(b)$ $NADPH$
$(c)$ Carbohydrate
$(d)$ Both $(a)$ and $(b)$
(ii) In the overall process of photosynthesis, the number of sugar molecules produced is:
$(a)$ $12$
$(b)$ $6$
$(c)$ $4$
$(d)$ $1$
(iii) $A$ plant is provided with ideal conditions for photosynthesis and supplied with isotope $^{14}CO_2$. When the products of the process are analysed carefully, what would be the nature of products?
$(a)$ Both glucose and oxygen are normal.
$(b)$ Both glucose and oxygen are labelled.
$(c)$ Only glucose is labelled and oxygen is normal.
$(d)$ Only oxygen is labelled and glucose is normal.
(iv) Refer to the given diagrammatic representation of an electron micrograph of a section of chloroplast and answer the question.
Select the option which correctly depicts the functions of parts $X$, $Y$ and $Z$.

	$X$	$Y$	$Z$
$(a)$	Dark reaction	Light reaction	Carbohydrate synthesis
$(b)$	Light reaction	Carbohydrate synthesis	Carbohydrate storage
$(c)$	Light reaction	Carbohydrate storage	Carbohydrate synthesis
$(d)$	Carbohydrate synthesis	Carbohydrate storage	Cytoplasmic inheritance

$(v)$ Following table summarises the differences between light and dark reactions.

	Light reactions	Dark reactions
$(I)$	These are also called biosynthetic phase.	These are also called photochemical phase.
$(II)$	These reactions occur over thylakoids.	These reactions occur in stroma of chloroplasts.
$(III)$	These produce assimilatory power i.e., $NADPH$ and $ATP$.	These consume $NADPH$ and $ATP$.
$(IV)$	These are directly dependent upon light.	They depend upon the products synthesised during light reactions.

Which of the following is the correct group of differences?
$(a)$ $(I)$, $(II)$ and $(III)$
$(b)$ $(II)$, $(III)$ and $(IV)$
$(c)$ $(II)$ and $(III)$
$(d)$ $(I)$ and $(IV)$

Identify the name of the reaction: $6CO_2 + 12H_2O \xrightarrow{\text{sunlight, chlorophyll}} C_6H_{12}O_6 + 6O_2 + 6H_2O$.

All non-green plants and animals are . . . . . . .

Dry raisins were soaked in water for $2 \text{ hours}$ to determine the percentage of water absorbed by the raisins. Before the final weighing of the swollen raisins, the extra water left on the surface of the soaked raisins was removed by:

Which is the internal energy reserve in plants? Do the animals have the same energy reserve?