Which of the following is NOT a category of biological molecules? Select one: a. lipid b. carbohydrate c. protein d. amino acid Which of the

Which of the following is NOT a category of biological molecules?

Select one:

a. lipid

b. carbohydrate

c. protein

d. amino acid

Which of the following scientists coined the term "cell"?

Select one:

a. Anton Van Leeuwenhoek

b. Lamarck

c. Robert Hooke

d. Alfred Wallace

Which of the following instruments is used to measure pH.

Select one:

a. pH meter

b. balance

c. graduated cylinder

d. meter stick

Which of the following enzymes is not correctly paired with its substrate?

Select one:

a. amylase - starches

b. lipase - lipids

c. sucrase - nucleic acids

d. protease - proteins

If an enzyme changes shape so much that it can no longer bind with a substrate, this is called ____.

Select one:

a. malfunction

b. distortion

c. denaturation

d. proliferatio

A beaker measures ____.

Select one:

a. absorbance

b. coloration

c. mass

d. volume

Euglena have the ability to perform photosynthesis. Which of the following structures allows them to perform this function?

Select one:

a. flagella

b. chloroplasts

c. cillia

d. pseudopodia

Which of the following structures are present in plant cells and not present in animal cells?

Select one:

a. centrioles

b. contractile vacuole

c. central vacuole

d. cell wall

e. both central vacuole and cell wall

Question 10

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

If an iodine solution turns blue/black, which of the following substances is present?

Select one:

a. protein

b. lipid

c. nucleic acid

d. starch

Question 11

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

During the scientific method lab, students were required to use a balance. This instrument is used to measure the ____ of a liquid solution.

Select one:

a. mass

b. volume

c. absorbance

d. length

Question 12

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following instruments is used to measure volume?

Select one:

a. balance

b. graduated cylinder

c. meter stick

d. volumetric calibrator

Question 13

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

The movement of water from high concentration to low concentration is called ____.

Select one:

a. diffusion

b. osmosis

c. active transport

d. water flow

Question 14

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

____ are complex carbohydrates, while ____ are simple carbohydrates.

Select one:

a. monosaccharides .... starches

b. disaccharides .... monosaccharides

c. starches .... monosaccharides

d. disaccharides .... starches

Question 15

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

A substance with a pH value of 6 is a(n) ____.

Select one:

a. acid

b. base

c. neutral

d. can not be determined

Question 16

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following food items contain mostly protein?

Select one:

a. onion

b. potato

c. egg

d. apple

Question 17

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following substances can get a reaction underway or speed it up?

Select one:

a. lipid

b. base

c. enzyme

d. carbohydrate

Question 18

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following environmental factors can influence the effectiveness of enzyme activity?

Select one:

a. temperature

b. pH

c. sunlight

d. both temperature and pH

Question 19

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following statements is true regarding prokaryotic and eukaryotic cells.

Select one:

a. Prokaryotic cells have a cell wall, and eukaryotic cells do not.

b. Eukaryotic cells have a nucleus, prokarytic cells do not.

c. Eukaryotic cells are much smaller than prokaryotic cells.

d. Prokaryotic cells have membraned organelles, and eukaryotic cells do not.

Question 20

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following food items contain mostly starch?

Select one:

a. onion

b. potato

c. egg

d. apple

Question 21

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following best describes why buffers are used during experiments?

Select one:

a. Buffers are used to increase the volume of a solution, which makes it is easier to measure.

b. Buffers act as biological catalysts and help reactions occur more efficiently.

c. Buffers are used to help maintain a certain pH value of a solution.

d. Buffers are used to slow down the reactions, which allows students more time to write down their results.

Question 22

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following testing reagents and biological molecules are paired correctly?

Select one:

a. biuret .... protein

b. iodine .... reducing sugar

c. benedict's .... lipid

d. Sudan IV .... starch

Question 23

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

The Amoeba has the ability to reach out and grab nearby food using which of the following structures?

Select one:

a. flagella

b. cilia

c. contractile vacuole

d. pseudopod

Question 24

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following is a distinguishing structure of cardiac muscle cells?

Select one:

a. cell wall

b. intercalated discs

c. mitochondira

d. nucleus

Question 25

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

In the image provided with this question, what is structure B?

Select one:

a. stage

b. course adjustment

c. ocular lens

d. objective lenses

Question 26

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

In the image provided with this question, what is structure B?

Select one:

a. flagella

b. cytoplasm

c. nucleus

d. pseudopod

Question 27

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

In the image provided with this question, what is structure A?

Select one:

a. flagella

b. cilia

c. contractile vacuole

d. pseudopod

Question 28

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

In the image provided with this question, which instrument is used to measure mass?

Select one:

a. Instrument A

b. Instrument B

c. Instrument C

d. Instrument D

Question 29

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

In the image provided with this question, what is structure C?

Select one:

a. cell wall

b. cytoplasm

c. nucleus

d. pseudopod

Question 30

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following buffers are found in most living organisms?

Select one:

a. phosphate

b. carbonate

c. nitrate

d. both phosphate and carbonate

Question 31

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following testing reagents required heat to view the results?

Select one:

a. iodine

b. Benedict's

c. biuret

d. Sudan IV

Question 32

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

A rock with a mass of 40 g is placed in a graduated cylinder of water. The water displacement is from the 30 ml mark to the 35 ml mark on the graduated cylinder. What is the density of that rock?

Select one:

a. 5 g/ml

b. 200 g/ml

c. 45 g/ml

d. 8 g/ml

Question 33

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

A substance with a pH value of 12 is a(n) ____.

Select one:

a. acid

b. base

c. neutral

d. can not be determined

Question 34

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following pH values is more acidic than the other ones?

Select one:

a. 14

b. 5

c. 10

d. 3

Question 35

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

In the image provided with this question, what is structure C?

Select one:

a. stage

b. course adjustment

c. ocular lens

d. objective lenses

Question 36

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

In the image provided with this question, what is structure A?

Select one:

a. cell membrane

b. cilia

c. nucleus

d. contractile vacuole

Question 37

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

If you are viewing a specimen using the 40x objective lens, then what is the total magnification of the specimen you are viewing. (Note: The ocular lens is 10x.)

Select one:

a. 4x

b. 40x

c. 50x

d. 400x

Question 38

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

A distinguishing feature of the Paramcium is the hair-like structures that protrude through the plasma membrane. What are these structures called?

Select one:

a. flagella

b. cilia

c. contractile vacuole

d. pseudopod

Question 39

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

In the image provided with this question, what is structure B?

Select one:

a. cell membrane

b. cilia

c. nucleus

d. contractile vacuole

Question 40

Not yet answered

Marked out of 1.0

Not flaggedFlag question

Question text

Which of the following substances can NOT diffuse through the dialysis tubing?

Select one:

a. iodine

b. water

c. starch

d. All of these substances can diffuse through the bag.