A biologist studying plant cells is comparing organelles that can only produce ATP in the presence of light to organelles that can produce ATP in the dark. These organelles, respectively, are A) chloroplasts and mitochondria B) stroma and chloroplasts C) peroxisomes and mitochondria D) stroma and peroxisomes

A) Chloroplast and Mitochondria

Explanation:

1) Chloroplast synthesizes ATP by Photosynthesis. It bounded by a double membrane structure. This double  membrane structure is called the chloroplast envelope. The inner membrane of the chloroplast encloses the interior of the chloroplast which is called the stroma. Inside the stroma there is another membrane system called the thylakoids. This is a network of flattened disc like structures bounded by a third membrane, the thylakoid membrane. The energy from light is captured by chlorophyll molecules causing electrons in the chlorophyll to become "excited". These electrons are then passed along an electron transport chain in the thylakoid membrane. This process pumps protons into the lumen of the thylakoids, creating a proton gradient across the thylakoid membrane. As the protons flow back across the membrane via ATPase, the energy released is used to synthesize ATP.

2) Mitochondria produces ATP by respiration using oxygen available within the cell convert chemical energy from food in the cell to energy. The process is called oxidative phosphorylation and it happens inside mitochondria. In the matrix of mitochondria the reactions known as the citric acid or Krebs cycle produce a chemical called NADH. NADH is then consumed by enzymes present in the mitochondrial inner membrane to generate Adenosine Triphosphate (ATP). In ATP the energy is stored in the form of chemical bonds. These bonds can be opened and the energy will be consumed.

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.