Question 1: the right answer is chloroplast.
The chloroplast is the place of photosynthesis. It takes place more particularly at the level of the photosystems anchored in the thylakoid membranes. Chlorophyll, which gives plants a green color, is part of the photosystems and its role is to capture sunlight to convert it into energy during photosynthesis.
Question 2: The right answer is passive transport.
Passive transport is a net shift of a substance across a membrane in the direction of the concentration gradient; does not require energy by the cell.
In other words, it is a transfer of a molecule through a lipid membrane, in the direction of its electrochemical gradient, which does not require external energy.
Question 3: The right answer is multicellular.
In biology, a specialized tissue groups several cells with the same function, this does not exist in unicellular organisms and it is not a specific phenomenon of plants or animals. The bottom line is that the organism is multicellular.
