Biology Flashcards
Which of the following organelles is semi-permeable?
Cell membrane
Which of the following organelles is gel-like and contains all organelles (sugars and waters)?
Cytoplasm
Which of the following organelles are the membrane-covered sacs that move materials in the cell?
Vesicle
Which of the following organelles converts sugar and oxygen into ATP?
Mitochondria
Which one of the following organelles is the site of cellular respiration?
Mitochondria
Which organelle is only in plants?
Cell well
Which organelle sorts and packages proteins?
Goigi (post office)
Which organelle holds the DNA?
Nucleus
Which of the following organelles are found WITHIN the lungs?
Alveoli and bronchi
Which organelles are one cell thick?
Alveoli and capillary
What is FALSE about cancer?
Benign tumours can spread to other parts of the body (CAN’T SPREAD ANYWHERE)
How are veins specialized in our body?
They bring blood TO the heart and have shut off valves
How are arteries specialized in our bodies?
They bring blood AWAY from the heart and are thick walled
Which cell contains minerals to provide structure and support?
Bone cells
Which cells send and receive information within the body?
Nerve cells
Which cells make up connective tissue in the body?
Blood and bone cells
Where is epithelial tissue found in the body?
On your skin and around the organs
How are diffusion and osmosis ALIKE and how are they DIFFERENT?
ALIKE: Movement of particles from a high concentration to a low concentration.
DIFFERENT:
DIFFUSION- *perfume) no membrane
OSMOSIS- *egg) across a semi-permeable membrane
What are the THREE stages of the cell cycle (what occurs at each stage)?
INTERPHASE:
where the cell spends the most time
grows 2 times it’s size; duplicates organelles
MITOSIS:
PMAT (prophase, metaphase, anaphase, telophase; cell makes identical copy
CYTOKINESIS:
cytoplasm pinches off and the end results is 2 identical cells
What are stem cells?
unspecialized cells that become other cells in our bodies
(skin cells, muscle cells)
Where can doctors get stem cells from?
Bone marrow, peripheral, umbilical cord
What do doctors consider before using stem cells to help a patient?
Overall age, overall health, and the type of cancer
What can stem cells be used to treat?
Cancer, spinal cord injuries
