Products that were made in the light reactions of photosynthesis, but are required by the
dark reactions

are and
- oxygen and ATP
- oxygen and water
- oxygen and NADPH
- ATP and NADPH

ATP and NADPH

Explanation: Photosynthesis in higher plants involves two processes: light reactions which occurs only when plants are illuminated and carbon fixation reactions which are driven by products of light reactions.

In light reactions, chlorophyll and other pigments absorb light and conserve it as ATP and NADPH while oxygen is liberated but in carbon fixation reactions, ATP and NADPH are used to reduce carbon dioxide to form triose phosphates, starch, sucrose and other products derived from them.

The correct matching is as follows-

1. (pl. gametangia) an organ of lower plants, some protists and some fungi, that produces gametes- gametangium.

2. the reproductive cell in sexual reproduction- for example, the egg or sperm.

3. gamete-producing organ in animals - gonad.

4. cone-bearing plant - gymnosperm.

5. the condition of having isogametes - isogamy.

Gametangium refers to the specialized organ of algae, fungi, ferns and other plants involved in the production of gametes. A female gametangia is called the archegonia producing the egg cells and the male gametangia is called the antheridia producing the sperm cells.

Sexual reproduction is characterized by the production and fusion of the male and female gametes called the sperm and the egg respectively.

The gamete producing organ in animals is called the gonads. It is the testis in the male and the ovary in the female.

Gymnosperms are naked seeded plants. The scales or leaves modified to form the male and the female cones.

Isogamy is a type of sexual reproduction that involves the gametes of similar morphology with similar size.