Cells M2 Flashcards

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1
Q

Why are mitochondria found in abundance in muscles.

A

Mitochondria are
involved in aerobic respiration
- generates ATP
- muscle contraction needs

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2
Q

What is a plasmid, and what cell type is it found in?

A

-Circular strand of DNA
-Independent of/in addition to
chromosomal DNA
-Found in prokaryotes

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3
Q

Identify two tissues that make up the heart?

A
  • Cardiac muscle tissue
  • Nervous tissue
  • Epithelium tissue
  • Fatty tissue
  • Fibrous tissue
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4
Q

What is the equation for magnification?

A

I = A/M

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5
Q

Protein production

A
  1. nucleolus produces ribosomes for protein synthesis in the RER 2. nucleolus produces mRNA fro ribosomes to make into proteins. 3. ribosomes in rough ER make proteins 4.RER processes the proteins and sends to Golgi in vesicles 5. The Golgi body modifies and packages proteins 6. cytoskeleton transport proteins in secretory vesicle to plasma membrane 7. fuse with membrane and excrete them.
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6
Q

what size is a eukaryotic cell?

A

10-100ym

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7
Q

what size is a prokaryotic cell?

A

0.1-1ym

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8
Q

Define resolution

A

the ability to distinguish two separate points that are close together.

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9
Q

why differential staining?

A

helps distinguish different parts of a cell and allows you to identify them.

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10
Q

Describe and explain the adaptations of a neutrophil.

A

Contain lots of lysosomes, containing hydrolytic enzymes. Lysosomes will fuse with a phagocyte and then digests bacteria and absorb the products.

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11
Q

comparison of prokaryotic and eukaryotic cells

A

P, circular DNA, in the cytoplasm, no membrane-bound organelles, 18nm/70s ribosomes, walls of peptidoglycan. E, linear DNA, in nucleus, membrane bound organelles, 22nm/80s ribosomes

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12
Q

how do plants, animals and prokaryotes store energy

A

prokaryotes and animals store it as glycogen, whereas plant stores it as starch.

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