Mastering Biology Ch.4

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The endosymbiosis hypothesis proposes that

A small cell lived inside a large cell to the benefit of both cells

Peroxisomes are organelles that are involved in the ______?

Breakdown of fatty acid's

Which is a typical function of lysosomes?

Breaking down of damaged organelles

The function of mitochondria is?

Cellular respiration

_______ are found only in plant cells, but _______ are found in both plant and animal cells

Central vacuoles; Ribosomes

The nucleus of a cell...

Contains DNA

The structural framework in a animal cell is

Cytoskeleton

What does the prefix Lyso- mean?

Decomposition

What system includes the ER, the golgi apparatus, lysosomes and vesicles

Endomembrane

Why do peroxisomes break down fatty acids?

For fuel

In an animal cell which of the following is part of the Endomembrane system?

Golgi apparatus

What processes and packages proteins in an animal cell?

Golgi apparatus

What changes would you expect to see in the liver cells of someone suffering from chronic alcoholism?

Increased levels of endoplasmic reticulum activity

Which organelle plays a role in intracellular digestion?

Lysosome

Which of the following organelles breaks down worn out organelles?

Lysosomes

The main function of the rough ER is the production of

Membrane and proteins secreted by the cell

In an animal cell where is ATP made?

Mitochondria

Which plant cell organelle converts chemical fuel into packets of chemical energy that can power the cell?

Mitochondria

Where is the genetic information of the cell stored

Nucleus

That function of chloroplasts is?

Photosynthesis

What is the protective structure made of cellulose fibrils?

Plant cell wall

One of the ways smooth ER differs from rough ER is that rough ER is covered by?

Ribosomes

Pancreatic cells produce large amounts of protein. About how many ribosomes would you expect there to be any pancreatic cell?

Several million

What part of a liver cell has enzymes that are involved with alcohol metabolism?

Smooth ER

Where are lipids made in an animal cell?

Smooth ER

What is the function of the central vacuole?

Storing compounds produced by the cell

What is the function of the nucleolus?

To manufacture ribosomal RNA

What is the main function of the golgi apparatus

To store modify and package proteins

Which of the following describes the function of chloroplast?

converts light energy to chemical energy

In an animal cell what carries instructions for making proteins from the nucleus into the cytoplasm?

mRNA " Messenger"

What structure acts as a selective barrier regulating the traffic of materials into and out of the cell?

Plasma membrane


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