Why are salt and sugar used in the production of dried meat and dried fruits?
In the phase when the cell is not dividing (interphase) is there activity within the cell nucleus?
How do the amoeboid movements occur? What are examples of beings and cells that use such movements for locomotion?
What is extracellular digestion?
What are some examples of secretory cells?
What are some examples of biological activities in which osmosis plays important role?
What is the main cell organelle involved in cell digestion? What are the properties of that organelle that enable it to the task?
What does the formula DPD = SF – TP mean?
What is cyclosis?
What are the main cytoplasmic structures present in animal cells?
What is the relation between the concepts of chromatin and chromosome? Are euchromatin and heterochromatin part of chromosomes?
What are some examples of movement created by the contraction of sarcomeres of the muscle cells?
What is cytoskeleton? What are its main constituents in animal cells?
Which cell organelles are well-developed in secretory cells?
Which are the molecules that make possible active transport through membranes?