Cells
What is a cell?
The smallest unit that can live on its own and that makes up for all living organisms and the tissues of the body.
How big is a cell?
A single bacterial cell is about 1 μm in diameter.
What is the largest single cell?
ostrich egg
Which animal has a single cell?
Unicellular organisms
What gives cell strength?
Cell wall
What is the difference between a plant cell and a animal cell?
Animal cells have centrioles, centrosomes (discussed under the cytoskeleton), and lysosomes, whereas plant cells do not.
What are the features of a human cell?
The cell membrane, the nucleus, and, between the two, the cytoplasm.
What is the smallest cell?
Mycoplasma gallicepticum
How many cells are in a baby?
26,000,000,000 cells
What's inside a cell?
The cell membrane, the nucleus, and, between the two, the cytoplasm
What is the most important part of a cell?
Nucleus
Does every single cell in my body have the same DNA?
yes, every cell in the body has roughly the same set of DNA.
What surrounds every cell?
The cell membrane
Is sperm a single cell?
Each sperm is a single cell
Where did the first cell come from?
The enclosure of self-replicating RNA in a membrane composed of phospholipids.
What makes up a cell?
Water, inorganic ions, and carbon-containing (organic) molecules.
How many different types of cells are there in the human body?
More than 200
Which is the longest cell?
Neurons
Do cells have different functions?
Cells of various types have different functions
What cells can be 1000 times larger?
Eucaryotes
How many cells are there in the human body?
30 trillion
What is the cell theory?
Cells are the basic unit of life, all living things are made up of cells, and all cells come from other cells.
Who discovered the cell?
Robert Hooke
What powers a cell?
Mitochondria
What are 20 organelles in a cell?
Within the cytoplasm, the major organelles and cellular structures include: (1) nucleolus (2) nucleus (3) ribosome (4) vesicle (5) rough endoplasmic reticulum (6) Golgi apparatus (7) cytoskeleton (8) smooth endoplasmic reticulum (9) mitochondria (10) vacuole (11) cytosol (12) lysosome (13) centriole.