Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BIO 100 > Cellular Biology > Flashcards

Cellular Biology Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What type of transportation is displayed in the following image?

A

Simple Diffusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What happens if a cell does not have a checkpoint regulation during the cell cycle?

A

Mutations could occur and cause malfunctions.
Cells may not be large enough to divide.
Cells could continue dividing unnecessarily and create tumors.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which are the parts of the cell’s cytoskeleton?

A

Microtubules

Microfilaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which of the following are phases of Interphase?

A

G1

S

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Why might a cell undergo apoptosis?

A

There are too many mutations in its DNA after replication.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is apoptosis? What could happen if cells do not undergo apoptosis when they are supposed to do so?

A

Apoptosis is cell suicide. It ensures cells do not live too long and grow too large.
If cells do not undergo apoptosis when needed, they can grow too big and cause tumors.
They could also replicate quickly and pass along the mutated DNA to future cells, thus increasing the problem.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Many birds have a layer of oil over their feathers that act as a natural rain coat. It helps them fly by keeping their feathers from becoming too wet. Why does oil act like a rain barrier? Make sure to discuss what happens at the molecular chemical level to create this barrier.

A

Oil is non polar and will not readily mix with polar water.
When oil is spread across a surface, such as feathers, it will repeal water. Instead of soaking into the feathers and rending them useless, the oil will allow the water to roll off the bird. This keeps the bird healthy and able to fly!
Birds secrete this oil through a gland in their beaks and will use their beaks to apply the oil regularly on their feathers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Metabolism is the sum of all chemical reactions in the body.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

When is DNA replicated in the cell cycle?

A

S phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The cytosol contains which of the following?

A

Potassium ions
Amino acids
Carbohydrates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

When scientists compare the sequence of DNA in one human to another, they find that some of the DNA overlaps.
Roughly what percentage of your DNA is the same as a stranger’s DNA?

A

99%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which component of the cell membrane can act as an exchange channel?

A

Protein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Somatic cells include which of the following?

A

Heart cells
Kidney cells
Brain cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

One ATP molecule can power the sodium-potassium exchange pump by transferring how many of each ion?

A

2 potassium ions

3 sodium ions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Heterochromatin is the “active” DNA that is transcribed regularly by cells.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What separates the extracellular fluid from the cell’s cytosol?

A

Cell membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Cholesterol helps with which of the following tasks?

A

Keeping the membrane from becoming too rigid and

Keeping the membrane from becoming too fluid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the roll of the topoisomerase in DNA replication?

A

Breaking hydrogen bonds to untwist the double helix

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Prokaryotes have which of the following characteristics?

A

Ribosomes and cytosol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What proteins comprise the spindles during mitosis?

A

Tubulin from centrioles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

A cell membrane includes which of the following?

A

Lipids
Proteins
Carbohydrates
Cholesterol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Which enzyme connects new nucleotide bases onto existing, lending DNA strand during replication?

A

DNA polymerase

23
Q

Which of the following transportation method need energy?

A

Exocytosis

24
Q

Triglycerides are three fatty acids bound together by which molecule?

A

Glycerol

25
Q

During which stage of the cell division are the chromosomes split apart into two sister chromatids and pulled to opposite ends of the cell?

A

Anaphase

26
Q

Which of the following organism is a eukaryote?

A

Protist

27
Q

Viruses are considered living when they contain DNA.

A

False

28
Q

Anabolic reactions do which of the following?

A

Synthesize molecules

29
Q

IV (intravenous) fluids are made of which tonicity?

A

Isotonic

30
Q

Which scientist coined the term “cell” when looking at cork under a microscope?

A

Hooke

31
Q

Which of the following are components of lipids?

A

Carbon
Oxygen
Hydrogen

32
Q

Which are true statements regarding metabolic processes in the body?

A

Food provides the building blocks for metabolic processes.

The body can rearrange food molecules to build what it needs.

33
Q

Lipids perform which of the following factions in the body?

A

Energy Storage
Protection
Insulation

34
Q

Which of the following are true of essential amino acids?

A

The body cannot synthesize them

Without them, the body could not function properly

35
Q

Which organelle helps renew the plasma membrane?

A

Golgi Apparatus

36
Q

In which phase do neurons spend most of their life cycle?

A

G-0

37
Q

How many pairs of chromosomes do healthy somatic cells contain per nuclei?

A

23

38
Q

Plant cells have which of the following organelles that animal cell do not?

A

Chloroplasts
Cell Walls
Vacuoles

39
Q

What happens to the red blood cells placed in a hypertonic solution?

A

Water leaves the cell

40
Q

Where are cilia found in the body?

A

The fallopian tube
The respiratory tract
The digestive system

41
Q

This is Jonathan. He recently turned 188 years old. Which of the following reasons help explain why tortoises like Jonathan can live so long?

A

They have a slow metabolism
They have great DNA repair mechanisms
They have strong immune response

42
Q

Lysosomes are produced by which organelle?

A

Golgi Apparatus

43
Q

Functions of the cell membrane include which of the following?

A

Interaction with environment
Structural stabilization
Regulation of entry and exit into the cell
Physical barrier to external environment

44
Q

Filtration is often used in which of the following body part?

A

Kidneys
Heart
Capillaries

45
Q

Why are enzymes useful in chemical reactions?

A

They lower the activation energy

46
Q

In which state of the cell division do the chromatids separate and migrate to opposite ends of the cell?

A

Anaphase

47
Q

Which of the following are true cytokinesis?

A

It results in two new daughter cells
It begins during anaphase
It means “cell movement”
It is a part of cell division

48
Q

Enzymes are used up and destroyed in chemical reaction.

A

False

49
Q

A large quantity of polar waste products need to leave the cell. What transportation method will they likely use.

A

Exocytosis

50
Q

There are more bacteria cells in the human body than human cells.

A

True

51
Q

Mitosis makes up around 90% of the cell’s life.

A

False

52
Q

What does the Golgi Apparatus do?

A

Modifies and packages secretions

53
Q

Which of the following serve as transportation channels in the outer cell membrane.

A

Integral Proteins

54
Q

Special types of white blood cells exhibit which type of cell membrane transport activity to “eat” harmful bacteria?

A

Phagocytosis

BIO 100 (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions