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SCIENCE🧪 > Biology > Flashcards

Biology Flashcards

1
Q

Which of the following organelles is semi-permeable?

A

Cell membrane

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2
Q

Which of the following organelles is gel-like and contains all organelles (sugars and waters)?

A

Cytoplasm

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3
Q

Which of the following organelles are the membrane-covered sacs that move materials in the cell?

A

Vesicle

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4
Q

Which of the following organelles converts sugar and oxygen into ATP?

A

Mitochondria

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5
Q

Which one of the following organelles is the site of cellular respiration?

A

Mitochondria

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6
Q

Which organelle is only in plants?

A

Cell well

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7
Q

Which organelle sorts and packages proteins?

A

Goigi (post office)

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8
Q

Which organelle holds the DNA?

A

Nucleus

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9
Q

Which of the following organelles are found WITHIN the lungs?

A

Alveoli and bronchi

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10
Q

Which organelles are one cell thick?

A

Alveoli and capillary

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11
Q

What is FALSE about cancer?

A

Benign tumours can spread to other parts of the body (CAN’T SPREAD ANYWHERE)

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12
Q

How are veins specialized in our body?

A

They bring blood TO the heart and have shut off valves

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13
Q

How are arteries specialized in our bodies?

A

They bring blood AWAY from the heart and are thick walled

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14
Q

Which cell contains minerals to provide structure and support?

A

Bone cells

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15
Q

Which cells send and receive information within the body?

A

Nerve cells

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16
Q

Which cells make up connective tissue in the body?

A

Blood and bone cells

17
Q

Where is epithelial tissue found in the body?

A

On your skin and around the organs

18
Q

How are diffusion and osmosis ALIKE and how are they DIFFERENT?

A

ALIKE: Movement of particles from a high concentration to a low concentration.

DIFFERENT:
DIFFUSION- *perfume) no membrane
OSMOSIS- *egg) across a semi-permeable membrane

19
Q

What are the THREE stages of the cell cycle (what occurs at each stage)?

A

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

20
Q

What are stem cells?

A

unspecialized cells that become other cells in our bodies
(skin cells, muscle cells)

21
Q

Where can doctors get stem cells from?

A

Bone marrow, peripheral, umbilical cord

22
Q

What do doctors consider before using stem cells to help a patient?

A

Overall age, overall health, and the type of cancer

23
Q

What can stem cells be used to treat?

A

Cancer, spinal cord injuries

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