What is the meaning of photosynthesis

Photosynthesis is the process by which plants and other things make food.It is an endothermic (takes in heat) process.Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy.

Explanation:(what happens in this process)

-Sunlight energy is converted into chemical energy by using chlorophyll.Gives plants their green color to the plants.

- Chlorophyll absorbs red and blue light and uses the energy to convert water and carbon dioxide into glucose.

- Plants convert sugar and energy from water, air and sunlight into energy to grow

- formula for photosynthesis :  6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy

-formation of carbohydrates from carbon dioxide and a source of hydrogen in the chlorophyll-containing cells (as of green plants) exposed to light.

- Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis .

-  plants breath in carbon dioxide and breath out oxygen.

fertilization, pictured in figure 24.23a is the process in which gametes (an egg and sperm) fuse to form a zygote. the egg and sperm each contain one set of chromosomes. to ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. in mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. when a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reactions, take place. in placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane, as illustrated in figure 24.23b. the fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. the nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome.

explanation:

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times