Chapter 2A: Cell Division And Cell Death Flashcards
The following are examples of Somatic cells except:
A. Red blood cell
B. Skeletal muscle cells
C. Sex cells
D. Osteocytes
C. Sex cells
In the cell cycle, which phase follows 5 phase, or DNA replication?
G2 phase or protein synthesis
When cells divide and multiply in the embryo and change shape and structure, the process is called?
Differentiation
During Osmosis, if there is a hypotonic solution present around the cell then….
There is a greater concentration of water outside the cell than inside it…
When the concentration of a substance is higher on one side of the cell’s selectively permeable membrane, certain molecules may move by Osmosis or diffusion through the membrane without the cell using any energy, this process is called?
Passive transport
In the cell cycle, which phase follows a 5 phase or DNA replication?
G2 phase, or protein synthesis.
Within the plasma membrane, the heads of the lipids
A. Do not dissolve in water
B. Are attracted to water
C. Take in water
D. Release water
B. Are attracted to water
The information in DNA in the nucleus is used to produce?
A. Proteins
B. Amino acids
C. Lipids
D. All of the above.
A. Proteins
What is the first step of cellular respiration?
B. Glycolysis breaks down a 6 carbon glucose molecules into two 3 carbon pyruvic acid molecules.
What are the 2 types of cell death?
- Necrosis/Messy cell death.
- Apoptosis/Tidy cell death/controlled cell death.
What type of cell death is where cells enlarge, disturbing the nearby cells, cells then burst/rupture, causing inflammation…
Messy cell death/Necrosis
A typical example of a messy cell death is….
A scab
What type of cell death is when cells shrink, not disturbing nearby cells, they breakup into smaller bubbles and nearby cells pick up broken pieces(blisters/bubbles) according to their needs and the immune cleans clean up the rest.
Apoptosis/Tidy cell death
Apoptosis happens in every human body and is triggered by
A person’s genetic make up.
Example of Apoptosis is
In an embryo development, the foetus’s webbed fingers keeps growing and the webs fall off, then normal fingers are formed.
Another example of Apoptosis is
It happens every 3-5 days, the intestinal epithelium is totally replaced.
Chromosome 17 is also called the guardian angel of the geno, which does what?
Suppresses the cancer cells of the
Breast cancer cells
Lung cancer cells
Colon cancer cells
They are all called epigenetics.
Somatic(All body) cell Division is called
Mitosis
Cell Division that happens in the Reproductive regions is called
Meiosis
Mitosis has what type of cells?
Diploid cells (2 x 23 = 46 chromosomes)
Major change in Meiosis 1 prophase?
There is crossing over in prophase 1 of Meiosis 1
Which vitamin is necessary for ATP synthesis?
Vitamin B
