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Unit 4 Test

Total questions: 50

Worksheet time: 17mins

Name
Class
Date
1.

In this process, plants use the energy of sunlight to convert water and carbon dioxide into high-energy carbohydrates (sugars and starches), and oxygen as a waste product.

a)

Calvin cycle

b)

Photosynthesis

c)

Light-dependent reactions

d)

Cellular respiration

2.

This is the overall equation of photosynthesis:

a)

Carbon dioxide + water => sugars + oxygen

b)

Sugars + oxygen => carbon dioxide + water

3.

Photosynthesis uses energy of sunlight to convert water and carbon dioxide into oxygen and high-energy what?

a)

Electrons

b)

Oxygen

c)

Hydrogens

d)

Sugars

4.

These are light-absorbing molecules used by plants to gather the sun’s energy.

a)

Pigments

b)

Thylakoids

c)

Chloroplasts

d)

Grana

5.

This is the principal pigment of plants.

a)

Thylakoids

b)

Grana

c)

Chlorophyll

d)

Chloroplast

6.

These are the regions of visible spectrum in which chlorophyll absorbs light very well.

a)

Yellow

b)

Green

c)

Blue, violet, and red

d)

Yellow, and orange

7.

It is the process that releases energy by breaking down glucose and other food molecules.

a)

Glycolysis

b)

Cellular respiration

c)

Krebs cycle

d)

Electron transport chain

8.

Which one of these is the correct equation for cellular respiration?

a)

6O2 + C6H12O6 => 6CO2 + 6H2O

b)

6CO2 + 6H2O => C6H12O6 + 6O2

9.

This pathway follows glycolysis in the absence of oxygen. It releases energy from food molecules by producing ATP.

a)

Krebs cycle

b)

Fermentation

c)

Electron transport chain

d)

Photosynthesis

10.

Since fermentation does not require oxygen, it is said to be

a)

Aerobic

b)

Anaerobic

11.

This molecule is used during photosynthesis, and produced during cellular respiration

a)

Carbon dioxide

b)

Oxygen

c)

Water

d)

ATP

12.

This molecule is produced during photosynthesis, and used during cellular respiration

a)

Carbon dioxide

b)

Oxygen

c)

Water

d)

ATP

13.

Name given to organisms that make their own food

a)

Homogeneus

b)

Heterogeneus

c)

Autotrophs

d)

Heterotrophs

14.

Name given to organisms that obtain energy from the food they eat

a)

Homogeneus

b)

Heterogeneus

c)

Autotrophs

d)

Heterotrophs

15.

It is one of the principal compounds used by cells to store and release energy

a)

ATP

b)

ADP

c)

Glucose

d)

Water

16.

ATP is a compound that consist of

a)

adenine, ribose, and two phosphate groups.

b)

adenosine, ribose, and three phosphate groups .

c)

adenine, ribose, and three phosphate groups.

d)

adenosine, glucose, and three phosphate groups.

17.

How many phosphate groups does ATP have?

a)

3

b)

2

c)

4

d)

6

18.

By adding a phosphate group to ADP molecules, cells

a)

release small amounts of energy

b)

release large amounts of energy

c)

store small amounts of energy

d)

store large amounts of energy

19.

Energy stored in ATP is released by

a)

removing ribose

b)

breaking the chemical bond between the second and third phosphates

c)

adding an adenine

d)

breaking the chemical bond between the first and the second phosphates

20.

ATP stores large amounts of energy over long periods of time

a)

True

b)

False

21.

This molecule is the best for energy storage.

a)

ATP

b)

ADP

c)

Glucose

d)

Starch

22.

Which of the following is NOT related to a cell’s ratio of surface area to volume?

a)

cell size

b)

rate of growth

c)

number of nuclei

d)

efficiency of cell’s transport of oxygen and nutrients

23.

To obtain a cell’s ratio of surface area to volume on must

a)

divide the surface area by the volume

b)

divide the volume by the surface area

c)

multiply the surface area times the volume

d)

subtract the volume from the surface area

24.

If a cell’s surface area is 9 cm3 and its volume is 1 cm3, then what is its ratio of surface area to volume

a)

1:9

b)

9:1

c)

9

d)

8

25.

As a cell grows in size

a)

its surface area increases more rapidly than its volume

b)

its volume decreases more rapidly than its surface area

c)

its volume increases more rapidly than its surface area

26.

The process by which a cell divides into two new daughter cells is called

a)

Cell growth

b)

Cytokinesis

c)

Cell division

d)

Cell fractionation

27.

The process of cell division results in

a)

sister chromatids

b)

mitosis

c)

two daughter cells

d)

unregulated growth

28.

Sister chromatids are attached to each other at an area called

a)

Centriole

b)

Centromere

c)

Spindle

d)

Chromosome

29.

The division of the cell nucleus during M phase of the cell cycle is called

a)

Meiosis

b)

Mitosis

c)

Cytokinesis

d)

Metaphase

30.

It is the phase divided into G1, S, and G2

a)

Telophase

b)

Mitosis

c)

Interphase

d)

Anaphase

31.

These are two tiny structures located in the cytoplasm near the nuclear envelope at the beginning of prophase

a)

Centrioles

b)

Centromeres

c)

Spindles

d)

Chromosomes

32.

A fan-like microtubule structure that helps separate the chromosomes

a)

Centriole

b)

Centromere

c)

Spindle

d)

Chromosome

33.

During this phase in mitosis, the chromosomes line up across the center of the cell

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

34.

During this phase in mitosis, the chromosomes become visible. The centrioles take up positions on opposite sides of the nucleus

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

35.

During this phase in mitosis, the chromosomes move until they form two groups near the poles of the spindle

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

36.

During this phase in mitosis, a nuclear envelope re-forms around each cluster of chromosomes. The nucleolus becomes visible in each daughter nucleus

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

37.

It is the division of the cytoplasm in a cell

a)

Mitosis

b)

Meiosis

c)

Cytokinesis

d)

Apoptosis

38.

Each of the chromosomes from the male parent has a corresponding chromosome from the female parent, this means that those two sets of chromosomes are

a)

Heterologous

b)

Homologous

c)

Diploid

d)

Haploid

39.

This type of cell contains two sets of homologous chromosomes and is represented as 2N

a)

Heterologous

b)

Homologous

c)

Diploid

d)

Haploid

40.

This type of cell has a single set of chromosomes and is represented as N

a)

Heterologous

b)

Homologous

c)

Diploid

d)

Haploid

41.

Because the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell, we say that meiosis is a process of

a)

Addition division

b)

Reduction multiplication

c)

Reduction division

42.

The following are the two-distinct division of meiosis

a)

meiosis I and II

b)

interphase I and II

c)

telophase I and II

d)

cytokinesis I and II

43.

The diploid cell that enters meiosis becomes four haploid cells at the end of meiosis.

a)

True

b)

False

44.

In prophase I of meiosis, when each chromosome pairs with its corresponding homologous chromosome, this is formed:

a)

a triad

b)

a tetrad

c)

a dyad

d)

a monad

45.

How many chromatids does a tetrad have?

a)

8

b)

6

c)

4

d)

2

46.

These are haploid gametes produced in males

a)

eggs

b)

sperm

c)

polar bodies

d)

none of the above

47.

These are haploid gametes produced in females

a)

eggs

b)

sperm

c)

polar bodies

d)

none of the above

48.

These cells are produced in females that do not participate in reproduction

a)

eggs

b)

sperm

c)

polar bodies

d)

none of the above

49.

This process results in the production of two genetically identical diploid cells.

a)

meiosis

b)

mitosis

c)

cytokinesis

d)

interphase

50.

It produces four genetically different haploid cells.

a)

meiosis

b)

mitosis

c)

cytokinesis

d)

interphase