Brainscape's Knowledge GenomeTM

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


See full index

Biology final > Test 1 > Flashcards

Test 1 Flashcards

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

What is the smallest unit that has all characteristics of life?

A

The cell.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
  1. Which sequence correctly lists the different levels of biological organization, from the smallest and simplest to the largest and most complex?
A

cells-tissues-organs-organ systems-organism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
  1. Which sequence of classification categories is in the proper order from least to most inclusive?
A

species, genus, family, order, class, phylum, kingdom, domain

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

What kingdom does corn belong to?

A

Kingdom Plantae

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

What are the 3 major domains of life?

A

Archaea, bacteria and eukaryotes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
  1. A multicellular, photosynthetic organism with complex, specialized cells and tissues would most likely be assigned to
A

Kingdom Plantae.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
  1. All the organisms of various species living within a given area constitute a
A

Community.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
  1. A possible explanation for a natural event, based on observations and past knowledge, is a
A

Hypothesis.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
  1. Which statement regarding the scientific method is false?
A

A control group is always exposed to the factor being tested.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
  1. Which answer choice lists the steps of the scientific method in the correct order?
A

observation, hypothesis, experiment, data collection, conclusion.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
  1. Which statement about living organisms is not correct?
A

Living organisms create energy.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
  1. The body temperature in humans is maintained around 37°C. Which characteristic of life does this information represent?
A

Living things are homeostatic.

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

Which of the following is one of the domains of life?

A

Eukarya.

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

Which classification category includes the most species?

A

Kingdom.

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

Which statement is false regarding science?

A

Correct scientific conclusions are permanent and never subject to change or refinement.

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

Which statement regarding the scientific method is false?

A

Original hypotheses are formed after an experiment.

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

Which statement regarding the scientific method is false?

A

Theories formed in everyday life carry the same validity as a scientific theory.

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

When researchers test a new human cancer drug using mice, the mice constitute

A

the model.

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

Which of the following domains contains organisms that are adapted to life in harsh environments?

A

Domain Archaea.

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

Which domains contain organisms that lack a membrane-bound nucleus?

A

Archaea and bacteria.

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

You have discovered a previously unknown organism. It is multicellular, with a filamentous form, and absorbs food from its environment. Upon microscopic examination, you see that the cells have nuclei. How would you classify this organism?

A

Kingdom funghi.

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

You are conducting an experiment to determine which brand of fertilizer results in the greatest amount of fruit production by tomato plants. In this example, the response variable would be

A

the amount of fruit produced by the tomato plants.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

You are conducting an experiment to determine what concentration of disinfectant is most effective in killing bacteria. In this example, the concentration of disinfectant would represent

A

the experimental variable.

24
Q

The smallest unit of matter that can enter into chemical reactions and is nondivisible by chemical means is called a(an)

A

Atom.

25
Q

Which of the following is a subatomic particle of an atom?

A

Electrons, protons and neutrons.

26
Q

The atomic mass of an atom is equal to

A

the number of protons plus the number of neutrons.

27
Q

Which of the following statements is true?

A

Electrons have a negative charge and equal the number of protons.

28
Q

What determines whether or not an atom reacts with other atoms?

A

the number of electrons in the outer shell.

29
Q

The carbon atom has an atomic number of 6 and an atomic mass of 12. Therefore, a carbon atom has

A

6 protons.

30
Q

______ are atoms that have the same number of protons but differ in the number of neutrons.

A

isotopes.

31
Q

Chlorine has an atomic number of 17 and an atomic mass of 35. When chlorine becomes the chloride ion, its charge is

A

Negative one.

32
Q

Chlorine has an atomic number of 17. How many electrons are in the outermost shell?

A

7

33
Q

The sodium atom has an atomic number of 11. Therefore, there are two electrons in the outermost orbit.

A

False.

34
Q

The molecule, K+Cl-, is held together by

A

Ionic bonds

35
Q
  1. If an atom either gains or loses an electron, the atom is called a(an)
A

Ion.

36
Q
  1. Atoms react with one another in order to achieve four electrons in their outer shell.
A

False.

37
Q

Which type of bond will share electrons between atoms?

A

Covalent.

38
Q
  1. An individual water molecule is held together by
A

Covalent bonds.

39
Q

Many water molecules are weakly held together by

A

Hydrogen bonds.

40
Q

The fundamental unit of life is the

A

Cell.

41
Q

The cell theory states that all living things are composed of atoms.

A

True.

42
Q

Which of the following statements is FALSE?

A

Cell walls are found inside the plasma membrane of a cell.

43
Q

The ______ membrane separates the contents of the cell from the surrounding environment.

A

Plasma.

44
Q

The information center of the cell is the

A

Nucleus.

45
Q

______ is/are the site of protein synthesis in the cytoplasm.

A

Smooth endoplasmic reticulum.

46
Q

Which type of organelle forms a membranous system of channels, which is continuous with the nuclear envelope and branches throughout the cytoplasm?

A

Endoplasmic reticulum.

47
Q

What is the correct organelle sequence for the export of material out of a cell?

A

rough ER –> smooth ER –> Golgi apparatus.

48
Q

The ______ function(s) in the packaging, storage, and distribution of molecules produced by the ER.

A

Golgi apparatus.

49
Q

Which plant organelles function as storage areas for water, sugars, salts, pigments, and toxic substances?

A

Vacuoles.

50
Q

Which organelle contains hydrolytic enzymes that can digest macromolecules?

A

Lysosomes.

51
Q

Which organelle is used when the fingers of a human embryo are at first webbed but later freed from one another?

A

Lysosome.

52
Q

Vacuoles are more prominent in plant cells than in animal cells.

A

True.

53
Q

Study this reaction: energy + carbon dioxide + water —-> carbohydrate + oxygen. This chemical transformation is called

A

Photosynthesis.

54
Q

Study this reaction: carbohydrate + oxygen —-> carbon dioxide + water + energy. This chemical transformation is called

A

Cellular respiration.

55
Q

Which organelle is responsible for this chemical transformation: energy + carbon dioxide + water —-> carbohydrate + oxygen?

A

Chloroplast.

56
Q

Which organelle is responsible for the process of photosynthesis?

A

Chloroplast.

57
Q

Which organelle is called the powerhouse of the cell because of its role in cellular respiration?

A

Mitochondria.

Biology final (3 decks)

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