Answer:
B. The cell wall and vacuole function to maintain the structure of plant cells
С. Chloroplasts allow the cell to store energy, and mitochondria release energy for the cell
E. Molecules can enter the cell by passing through the cell membrane and may take part in chemical reactions within the cytoplasm
Explanation:
Homeostasis, which is key to the survival of an organism, is the ability of a living organism's cell to maintain a stable internal environment despite changes to the external environment. Cell structures/organelles interact with one another in order to maintain homeostasis as follows:
- The cell wall and vacuole function to maintain the structure of plant cells. The cell wall is responsible for the rigidity of the plant cell while the water content of the vacuoles make the cell turgid.
- Chloroplasts allow the cell to store energy in the bonds of the glucose molecules that form as a result of the photosynthesis that occurs in the CHLOROPLAST while the mitochondria release energy for the cell due to the cellular respiration process that breaks down the glucose molecules to release ATP.
- Molecules needed by the cell can enter the cell by passing through the cell membrane and may take part in chemical reactions within the cytoplasm.
Answer:
The pulmonary circulation is part of the circulation system that moves blood from the heart to the lungs and lungs to the heart.
Explanation:
The pulmonary circulation is the part of the circulatory system which carries deoxygenated blood away from the right ventricle, to the lungs, and returns oxygenated blood to the left atrium and ventricle of the heart.
The deoxygenated blood is carried out by the right ventricle to the lungs and then moves the blood that carries the oxygen from the lungs to the left atrium and ventricle of the heart. It is a closed part of the circulation.
Osmosis refers to the transfer of water across a membrane and pressure of water inside plant cells is called turgor pressure. Osmosis causes cells to lose or gain water, which means it can increase or decrease the turgor pressure inside the cells. When the concentration of water available outside the cell is higher than inside, plant cell will gain water. When it's the other way around, the plant cells lose water.
Answer:
Part of the extracellular matrix secreted by osteocytes. (Ans. B)
Explanation:
Cells which are present on bones are known as osteocytes. Bone is composed of extracellular matrix, and cells. There are three types of cells which are present in the bones:
1) Osteoprogenitor cells.
2) Osteoblast.
3) Osteocyte.
Extracellular matrix is composed of organic matrix consisting glycoproteins, proteoglycans, osteocalcin also known as calcium binding proteins, and osteonectin which anchors bone mineral to collagen.