BSCI 105 Lecture Notes - Lecture 4: Phospholipid, Nuclear Lamina, Chromatin
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Question 1
Light microscopes
A. | typically provide more resolution than an electron microscope | |
B. | work by reflecting electrons off the surface of an object being studied | |
C. | use light and glass lenses to magnify an image |
Question 2
In the plasma membrane, the phospholipid heads
A. | are hydrophilic and face outward toward the aqueous solution on both sides of the membrane | |
B. | are hydrophobic and face outward toward the aqueous solution on both sides of the membrane | |
C. | are hydrophobic and face inward, shielded from water |
Question 3
The nucleus of a cell
A. | is surrounded by a single layer of membrane. | |
B. | contains DNA | |
C. | is the primary location of protein synthesis |
Question 4
Which location in the cell is unlikely to contain ribosomes or ribosomal subunits?
A. | endoplasmic reticulum | |
B | plasma membrane | |
C. | Cytoplasm |
Question 5
The main function of the rough endoplasmic reticulum is the production of
A. | membrane and proteins secreted by the cell | |
B. | mitochondria and proteins secreted by the cell | |
C. | hydrogen peroxide |
Question 6
The Golgi apparatus
A. | is the site of glucose breakdown | |
B. | stores, modifies, and packages proteins | |
C. | strings together amino acids to produce proteins |
Question 7
The function of mitochondria is
A. cellular respiration | ||
B. photosynthesis | ||
C. lipid synthesis |
Question 8
Which of the following statements about the cytoskeleton is false?
A. The cytoskeleton helps to support cell | ||
B. Once laid down, the elements of the cytoskeleton are fixed and remain permanently in place | ||
C. | The cytoskeleton is composed of three types of fibers: microfilaments, microtubules, and intermediate filaments |
Can you guys please help me fix this
Instructions: Review the content in Chapter 3 of the textbook and prepare a table or diagram that compares the components and characteristics of prokaryotic and eukaryotic cells. Be sure to include both (1)similarities- characteristics in common and (2) differences- characteristics unique to each cell type.
My project:
Prokaryotic and Eukaryotic Cells
Similarities between Prokaryotic and Eukaryotic :
- Both are made of cells.
- Cell is covered by a lipid bilayer membrane
- Both reproduce and multiply for grows
- Their genetic material is either DND or RNA
Differences:
Prokaryote eukaryote
absent | nucleus | present |
smaller | ribosome | larger |
Fold and condense prokaryotic dna | dna | Wrap their dna around proteins called histones |
absent | Membrane bound organelle | present |
absent | chloroplast | present |
Absent | mitochondria | present |
My teachers notes :
Both cell types have cytoplasm.
Be specific and include a list of membrane bound organelles in eukaryotic cells.