Brainscape's Knowledge GenomeTM

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


See full index

Biology > Unit 3a 3.1 3.2 3.3 > Flashcards

Unit 3a 3.1 3.2 3.3 Flashcards

1
Q

What is a theory

A

A theory is a proposed explanation for a wider range of observations and experimental results/ supported by a lot of evidence

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

What invention enabled the discovery of cells

A

Microscope

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

Who coined the term cell

A

Robert Hooke

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

Who published the first statement of the cell theory

A

Theador Schwann

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

what was incorrect about the first version of the cell theory

A

Spontaneous generation is false

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

who first realized that cells only come from preexisting cells

A

Rudolph Virchow

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

Three parts of cell theory

A

1.) All living things are composed of cells
2.) cells are the basic units of structure and function for living things
3.)All cells come from preexisting cells

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

List the two broad categories of living things

A

1.) Prokaryotic 2.) Eukaryotic

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

Contrast the way in which DNA is stored in the two types of cells.

A

Eukaryotic- DNA enclosed in the nucleus Pro- DNA is suspended from the cyptoplasm

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

Which type is more basic

A

pro

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

Which is smaller in size

A

Pro

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

Which is always Unicellular

A

Pro

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

Which can be unicellular or multicellular

A

Eukaryotic

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

Which two general types of organisms are prokaryotic

A

Bacteria Archea

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

4 categories of eukaryotes

A

animals, plants protist, fungi

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

Which of the two types does not contain many specialized organelles?

A

Prokaryotic

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

What typically surrounds prokaryotic cells?

A

cell wall

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

List two general functions of the cytoskeleton

A

Maintains cell shape, Hold organelles in place

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

What is the main component of the cytoskeleton?

A

Protein

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

What is the largest type of fiber in the cytoskeleton

A

Microtube

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

What is the smallest type of fiber in the Cytoskeleton

A

Microfilaments

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

What is one of the key jobs of a cell

A

making protein

22
Q

how many types of amino acids have been discovered

A

20

23
Q

which cell organelle contains DNA

A

nucleus

24
Q

Which cell organelle is made of many folds and fills up much of the cytoplasm? Both proteins and lipids are formed in it.

A

Endoplasmic Reticulum (ER)

25
Q

which cell organelle makes proteins

A

Ribsomes

26
Q

Which cell organelle where are ribosomes themselves assemble

A

nucleolus

27
Q

Rough endoplasmic reticulum

A

covered with Ribosomes

28
Q

Smooth Endoplasmic reticulum

A

Do not contain Ribosomes

29
Q

Which cell organelle processes, sorts, packages, and delivers proteins.

A

Golgi apparatus

30
Q

which cell organelle transports various materials from place to place within a cell

A

vesicles

31
Q

Which cell organelles supply energy to the cell

A

Mitochondria

32
Q

What cell organelle is used for storage

A

Vacuole

33
Q

Which cell organelle contains enzymes that can break down materials

A

lysomes

34
Q

which cell organelle produces microtubules

A

centrosomes

35
Q

in what type of cell are centrioles typically found

A

Animal cells

35
Q

what material makes up both cilia and flagella

A

centrioles

36
Q

Cilia

A

looks like little hairs

37
Q

Flagella

A

resembles a whip

38
Q

Four general types of organisms that have cell walls

A

plants, algae, fungi, bacteria

39
Q

which cell organelle carries out photosynthesis

A

chloroplasts

40
Q

Two types of cells that contain chloroplasts

A

1.) plant 2.) algae

41
Q

What is another name for that plasma membrane

A

cell membrane

42
Q

Describe the general structure of the plasma membrane

A

Consists of a double layer of phospholipids interspersed with a variety of other molecules

43
Q

What is the main purpose for the cholesterol that’s embedded in the plasma membrane

A

strengthens the cell membrane

44
Q

What is one role of protein that’s embedded in the plasma membrane

A

Helps materials cross the membrane

45
Q

The cell membrane is selectively permeable./ What does that mean

A

It lets some materials through but not others

46
Q

How do small, nonpolar molecules typically pass through the plasma membrane?

A

Pass easily

47
Q

What is the specific term for the diffusion of water

A

Osmosis

48
Q

How do small, polar molecules typically pass through the plasma membrane

A

Transported via proteins

49
Q

How do large molecules typically pass through the plasma membrane

A

Moved in vesicles

50
Q

Differentiate between active and passive transport

A

Act- Requires energy for movement of molecules, while passive does not

51
Q

Differentiate between endocytosis and exocytosis

A

Endocytosis-process of taking liquids or fairly large molecules into a cell by engulfing them in a membrane

Exocytosis- Cell releases substances when a vesicle fuses with the plasma membrane and expels its contents

Biology (18 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions