Cell structure and function
What is the powerhouse of the cell?
Mitochondria
In passive transport, does it require energy from the cell?
No
Does active transport require energy?
Yes, in the form of ATP.
What type of cell division is mitosis?
Somatic cell division.
What is the main function of the nucleus?
contains and protects genetic materials
Which organelle is responsible for protein synthesis?
Ribosome
What is diffusion?
The movement of molecules from an area of high concentration to low concentration.
Give an example of active transport.
Exocytosis, endocytosis, protein pump
How many daughter cells result from mitosis?
Two genetically identical cells
How many different subjects Ms Lee's can teach?
4
What is the function of ER?
It involves in the synthesis and transport of protein
Give an example of passive transport.
Osmosis or simple diffusion.
How does active transport differ from passive transport?
Active transport moves substances against their concentration gradient, requiring energy.
Name the stages of mitosis in order.
Interphase, Prophase, Metaphase, Anaphase, Telophase, and cytokinesis
Define osmosis.
The movement of water molecules across a selectively permeable membrane.
What is the function of Golgi body
It modifies, sorts, and packages proteins
What is facilitated diffusion?
Diffusion with the help of transport proteins.
What is endocytosis?
The process of taking in large particles by engulfing them with the cell membrane.
What is the purpose of mitosis?
Growth, repair, regeneration, and asexual reproduction.
What is the function of lysosomes?
They contain enzymes for breaking down waste materials in the cell.
What is the function of the cell membrane?
It regulates the passage of substances in and out of the cell.
What happens to a cell placed in a hypertonic solution?
It shrinks due to water loss.
Acts as active transporter to bring substances from lower concentration to higher concentration
What is spindle fibre?
It is microtubular structure, attaches and pull chromosomes apart from each other
How many science teachers are there in this school?
6