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Biology Missed Test Questions Flashcards

1
Q

Cells in multicellular organisms have many different sizes and shapes. These differences in cells is called cell specialization. Cell specialization allows cells to__________.

A

perform different functions

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2
Q

Biologists who work in the fields of genomics and molecular biology study

A

DNA

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3
Q

The basic unit of length in the metric system is the _____

A

meter

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4
Q

Using a universal system of measurement is the MOST important during which part of scientific methodology?

A

collecting data

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5
Q

Subatomic particles are _______________

A

particles that are smaller than an atom

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6
Q

Isotopes are atoms of the same element with the same number of protons and a different number of ______

A

neutrons

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7
Q

Water molecules are polar, with______________

A

the oxygen side being slightly negative and the hydrogen being slightly positive.

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8
Q

Amino acid is to protein as ______________

A

monomer to polymer

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9
Q

Which of the following is NOT a monomer?

A

a protein

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10
Q

In chemical reactions, atoms are ________

A

rearranged

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11
Q

A chemical bond formed by the transfer of electrons is a(an) ____ bond.

A

ionic

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12
Q

Why are water molecules polar?

A

Water molecules are polar because the oxygen is slightly more negative and the hydrogen is slightly more positive. This is why hydrogen is attracted to the oxygen, because it is polar.

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13
Q

List the 4 common types of organic compounds or macro molecules.

A

carbohydrate
lipids
nucleic acids
proteins

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14
Q

unlike the cell membrane, the cell wall is a ________.

A

rigid structure

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15
Q

A group of similar cells that preform a particular function is called _____.

A

a tissue

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16
Q

Molecules tend to move from an area where they are more concentrated to an area where they are less concentrated. This process is called ______.

A

diffusion

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17
Q

Large molecules, such as glucose, that cannot cross the blipped can still move across across the membrane through a type of passive transport called ___________.

A

facilitated diffusion

18
Q

List two functions of the cytoskeleton

A

keep shape & movement

19
Q

What would happen to an animal cell with an internal salt concentration of 0.8 %. If it were placed in a salt solution with a concentration of 0.2%? Why?

A

Water would flow in —> cell would swell

20
Q

How are endocytosis and exocytosis similar/different?

A

similar- Both forms of active transport
different- moving particles in and out the cell

21
Q

Moving particles out of the cell

A

exocytosis

22
Q

moving particles in the cell

A

endocytosis

23
Q

Most plants appear green because chlorophyl does not absorb ___ light

A

green

24
Q

where do light-dependent reactions take place?

A

within the thylakoid membrane.

25
Q

what happens when chlorophyll is struck by sunlight?

A

the electrons in the chlorophyll molecule become energized.

26
Q

cellular respiration releases energy by_________

A

food molecules

27
Q

When the body needs a constant supply of energy for longer than 90 seconds, it generates ATP by carrying out___________

A

cellular respiration

28
Q

In an oak tree, carbohydrates are produced by the process of photosynthesis, and cellular respiration is used to convert chemical energy in the carbohydrate to ATP. T/F

A

True

29
Q

1 Calorie

A

1000 calories

30
Q

200,000 calories

A

200 Calorie

31
Q

Muscle cells, which need a lot of ATP, would be expected to have a lot of_________, the organelles involved in cellular respiration.

A

Mitchondria

32
Q

______ regulate the timing of the cell cycle by duplicating its chromosomes and when to enter each phase of mitosis.

A

cyclins

33
Q

A ________ is hallow ball of cells with a cluster of cells inside that will become an embryo.

A

blastocyst

34
Q

G1

A

cell growth

35
Q

S phase

A

synthesis

36
Q

G2

A

replication of everything else

37
Q

mitosis

A

P.M.A.T Prophase, Metaphase, Anaphase, Telophase

38
Q

cell volume

A

The amount of material inside a cell

39
Q

cell surface area

A

the size of the membrane covering the cell

40
Q

________ are attached to each other at an area called the centromere.

A

sistechromatids

41
Q

Asexual

A

one parent reproduction

42
Q

sexual

A

two parent reproduction

whatever (9 decks)

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