Question 1

Scientific thinking can be used

Accepted Answer

by everyone in daily life.

Answer

by all living things.

Answer

only by scientists.

Answer

only in experiments.

Question 2

A hypothesis is a

Accepted Answer

testable possible explanation of an observation.

Answer

definite answer to a given problem.

Answer

proven statement.

Answer

concluding statement.

Question 3

You can work safely in the science lab by

Accepted Answer

following all instructions

Answer

taking shortcuts in procedures.

Answer

waiting until the end of experiments to clean area.

Answer

estimating measurements of chemicals.

Question 4

Biology is the study of

Accepted Answer

life.

Answer

weather.

Answer

minerals.

Answer

energy.

Question 5

Which of the following is not one of the seven properties of life?

Accepted Answer

photosynthesis

Answer

homeostasis

Answer

metabolism

Answer

responsiveness

Question 6

All living things maintain a balance within their cells and with the environment through the process of

Accepted Answer

homeostasis

Answer

evolution

Answer

development

Answer

growth

Question 7

The smallest particle of matter that can retain the chemical properties of carbon is a carbon

Accepted Answer

atom

Answer

macromolecule

Answer

molecule

Answer

element

Question 8

All matter is composed of

Accepted Answer

atoms

Answer

carbon

Answer

molecules

Answer

cells

Question 9

Which of the following is not a large biomolecule?

Accepted Answer

ice

Answer

lipid

Answer

nucleic acid

Answer

carbohydrate

Question 10

The building blocks of most biomolecules contain the element

Accepted Answer

carbon

Answer

sodium

Answer

calcium

Answer

nitrogen

Question 11

Long chains of amino acids are found in

Accepted Answer

proteins

Answer

lipids

Answer

sugars

Answer

carbohydrates

Question 12

DNA stores

Accepted Answer

hereditary information.

Answer

fat

Answer

carbohydrates

Answer

energy

Question 13

Which of the following led to the discovery of cells?

Accepted Answer

microscopes

Answer

computers

Answer

calculators

Answer

electricity

Question 14

One difference between prokaryotes and eukaryotes is that prokaryotes do not have

Accepted Answer

a nucleus.

Answer

cytoplasm

Answer

DNA

Answer

a cell membrane.

Question 15

The organelle that modifies, sorts, and packages proteins is the

Accepted Answer

Golgi apparatus.

Answer

lysosome

Answer

ribosome

Answer

endoplasmic reticulum.

Question 16

A cell that requires a lot of energy might contain large numbers of

Accepted Answer

mitochondria

Answer

vacuoles

Answer

lysosomes

Answer

chromosomes

Question 17

The organelles associated with plant photosynthesis are the

Accepted Answer

chloroplasts

Answer

Golgi apparatus.

Answer

mitochondria

Answer

vacuoles

Question 18

The diffusion of water into or out of a cell is called

Accepted Answer

osmosis

Answer

selective transport

Answer

solubility

Answer

endocytosis

Question 19

Most of the energy used by life on Earth comes from the

Accepted Answer

sun

Answer

weather.

Answer

moon.

Answer

rotation of Earth.

Question 20

Light energy is converted to chemical energy through the process of

Accepted Answer

photosynthesis

Answer

glycolysis

Answer

cellular respiration.

Answer

fermentation

Question 21

Which of the following organisms do not carry out photosynthesis?

Accepted Answer

animals

Answer

plants

Answer

algae

Answer

certain prokaryotes

Question 22

Chlorophyll is green because

Accepted Answer

it reflects green wavelengths of light

Answer

it absorbs green wavelengths of light.

Answer

it absorbs blue and yellow wavelengths, which make green.

Answer

of an optical illusion caused by transmitted light.

Question 23

The major atmospheric by-product of photosynthesis is

Accepted Answer

oxygen

Answer

nitrogen

Answer

carbon dioxide

Answer

water

Question 24

Cells produce ATP most efficiently in the presence of

Accepted Answer

oxygen

Answer

water

Answer

glucose

Answer

carbon dioxide

Question 25

The phase of the cell cycle that occupies most of an average cell’s life is

Accepted Answer

G1

Answer

G2.

Answer

mitosis.

Answer

S

Question 26

Which of the following shows the correct sequence of the cell cycle?

Accepted Answer

G1 --> S --> G2 --> mitosis --> cytokinesi

Answer

cytokinesis --> mitosis --> G1 --> S --> G2

Answer

mitosis --> G1 --> S --> G2 --> cytokinesis

Answer

S --> G1 --> G2 --> mitosis --> cytokinesis

Question 27

The synthesis (S) phase is characterized by

Accepted Answer

DNA replication.

Answer

replication of mitochondria and other organelles.

Answer

cell division.

Answer

the division of cytoplasm.

Question 28

Mitosis is the process by which

Accepted Answer

the nucleus is divided into two nuclei.

Answer

microtubules are assembled.

Answer

cytoplasm is divided.

Answer

the cell rests.

Question 29

As a result of mitosis, each of the two new cells produced from the parent cell during cytokinesis

Accepted Answer

receives an exact copy of all the chromosomes present in the parent cell.

Answer

receives a few chromosomes from the parent cell.

Answer

receives exactly half the chromosomes from the parent cell.

Answer

donates a chromosome to the parent cell.

Question 30

Normal cells become cancer cells when

Accepted Answer

cells do not respond to checkpoints.

Answer

cells respond to control mechanisms.

Answer

cells pass through G1

Answer

regulation of cell growth and division occurs.

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