This part of the cell contains DNA and controls cell functions.
What is the nucleus?
what is a cell theory?
biological organism are composed of cells
This is the smallest unit of life in all living organisms.
What is a cell?
What builds plant cells?
polymers that contain no nitrogen, including cellulose and lignin
This term refers to the outer layer of a plant cell that gives it structure and support.
What is the cell wall?
This gel-like substance inside the cell holds the organelles in place. Also, chemical reactions take place there.
What is the cytoplasm?
what are parts of the cell theory
1) All living things are made up of cells. 2) A cell is the smallest unit of structure and function in a living thing. 3) All cells arise from preexisting cells
what makes up an animal cell
the cell membrane, nucleus, nucleolus, nuclear membrane, cytoplasm, endoplasmic reticulum, golgi apparatus, ribosomes, mitochondria, centrioles, cytoskeleton, vacuoles and vesicles
What 3 things are only found in plant cells?
chloroplast, cell wall and a vacuole
This organelle stores water, nutrients, and waste in plant cells.
What is the vacuole?
Known as the "powerhouse" of the cell, this organelle produces energy.
What is the mitochondria?
why is the cell theory important
a Unifying Principle of Biology
How many animal cells are in a human
30 trillion
what makes plant cells grow
through a combination of cell growth and cell division (mitosis)
This type of cell lacks a nucleus and is typically smaller than eukaryotic cells.
What is a prokaryotic cell?
This part of the cell acts as a protective barrier, controlling what enters and exits the cell.
What is the cell membrane?
How do viruses violate the cell theory?
Since viruses are not made of cells, and do not use cells in any of their processes
does an animal cell have a vacuole
Yes then can be found in animals cells and plant cells
how many cells are in a plant cell have
Five, and they are, parenchyma cells, sclerenchyma cells, collenc, yma cells, xylem cells and phloem cells.
The double-layered structure that surrounds the cell nucleus and contains pores.
What is the nuclear membrane?
Found in plant cells, this organelle is responsible for photosynthesis
What is the chloroplast?
Why is the cell theory still accepted today?
Cell theory has traditionally been accepted as the governing theory of all life,
how much stuff is an animal cell made out of.
a cell membrane, a semipermeable outer layer controlling what substances can pass in and out, as well as cytoplasm, a semifluid substance that surrounds a cell's inner contents. As eukaryotes, animal cells have specialized structures called organelles to carry out certain functions.
what is a plant cell made of?
cellulose, hemicelluloses, and pectin.
This is the process by which cells use oxygen to produce energy from food.
What is cellular respiration?