January 2017-2018 Unit 2: Cells

A cell in the leaf of a corn plant contains more chloroplasts than a cell in the stem of a corn plant. Based on this observation, it can be inferred that, when compared to the cell in the stem, the cell in the leaf...

• synthesizes more sugar

• has a higher chromosome count

• produces fewer proteins

• uses less carbon dioxide

The diagram below represents a form of cellular reproduction.

As a result of this process, offspring 1 and offspring 2 will have...

• the same number of genes but different traits

• a different number of genes but the same traits

• the same number of genes and the same traits

• a different number of genes and different traits

Female hammerhead sharks sometimes produce offspring by a type of asexual reproduction. These offspring...

• are a result of the uniting of a male and a female gamete

• have cells that contain DNA found only in the female shark

• are considered to be a different species from the male parent

• have cells that contain genetic information from both parents

The chart in the picture contains information about some structures found in single-celled organisms.

The information in this chart best illustrates the biological concept that...

• all single-celled organisms contain contractile vacuoles, a flagellum, and chloroplasts

• single-celled organisms contain structures that function in maintaining homeostasis

• the organs found in complex organisms evolved from these three structures

• multicellular organisms do not contain any cell structures

The diagram represents a plant leaf cell and two different molecules used in the process of glucose synthesis.

Molecules 1 and 2 are most likely...

• Carbon dioxide and oxygen

• Carbon dioxide and water

• nitrogen and oxygen

• nitrogen and water

The diagram represents a plant leaf cell and two different molecules used in the process of glucose synthesis.

Molecules 1 and 2 enter the cell and glucose leaves the cell through the process of...

• respiration

• digestion

• active transport

• diffusion

Which statement best describes a function of glucose in plant cells?

• It is converted into solar energy in the chloroplasts.

• It can be used directly as a building block in protein synthesis.

• It can be used during the digestion of fats.

• It is used during cellular respiration in the mitochondria.

The diagram represents a cell.

Which structure is responsible for the passage of materials into and out of the cell?

• A

• B

• C

• D

The diagram represents a cell.

Which structure is responsible for the synthesis of ATP?

• A

• B

• C

• D

The processes of diffusion and active transport are both used to...

• break down molecules to release energy

• move molecules into or out of cells of the body

• bring molecules into cells when they are more concentrated outside of the cell

• move molecules against a concentration gradient, using ATP molecules