BIO160 Cells and DNA

Question 1

Which organelle serves as the garbage disposal of the cell?

Accepted Answer

Lysosomes

Question 2

Where in the cell would new ion channels (which are proteins) needed by the cell membrane be made?

Accepted Answer

Rough ER

Question 3

What nucleotide does RNA have that DNA does not have?

Accepted Answer

Uracil (U)

Question 4

What type of transport allows cells to take in large molecules, such as proteins?

Accepted Answer

Endocytosis

Question 5

Given the single DNA strand A-G-C-T, what would the complimentary strand of DNA be?

Accepted Answer

T-C-G-A

Question 6

In DNA, what nucleotide bonds with A?

Accepted Answer

T

Question 7

What organelle is considered the powerhouse of the cell?

Accepted Answer

Mitochondria

Question 8

Which component of the cell membrane helps to maintain the fluidity of the membrane?

Accepted Answer

Cholesterol

Question 9

How many copies of each gene do we have in our somatic cells? (body cells, not egg or sperm)

Accepted Answer

2

Question 10

What is the function of smooth ER?

Accepted Answer

Makes lipids

Question 11

What type of cell would a stem cell within your skin be?

Accepted Answer

An undifferentiated cell

Question 12

How many total chromosomes do we have in our somatic cells (not egg or sperm)?

Accepted Answer

46

Question 13

How would a sodium ion (Na+) cross the cell membrane?

Accepted Answer

It will use an ion channel

Question 14

Based on laws of physics and diffusion, will K+ diffuse into the cell?

Accepted Answer

No

Question 15

Does a brain neuron have the same chromosomes and DNA as a kerotinocyte in the skin?

Accepted Answer

Yes

Question 16

What is the product of translation?

Accepted Answer

a protein

Question 17

Which organelle increases the surface area of the cell membrane, enhancing absorption?

Accepted Answer

Microvilli

Question 18

Which organelle serves to provide support and give a cell its shape?

Accepted Answer

Cytoskeleton

Question 19

What is the function of our mitochondria?

Accepted Answer

Make ATP

Question 20

Which molecule would be able to cross the cell membrane directly?

Accepted Answer

O2

Question 21

Which organelle is the shipping and receiving organelle like a FedEx or UPS?

Accepted Answer

Golgi complex

Question 22

Which of the following is not a function of cell membrane proteins?

Accepted Answer

Serve as sites of protein synthesis

Question 23

In which direction will sodium ions diffuse through open Na+ channels?

Accepted Answer

Into the cell

Question 24

Creating an mRNA copy of the DNA in the nucleus is called what?

Accepted Answer

Transcription

BIO160 Cells and DNA

Questions 24

BIO160 Cells and DNA

Questions 24