Answers AISD-Biology A CR - 25-26Unit Test

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How are mitochondria similar to chloroplasts?

Both have many layers of membranes.

Both contain molecules of chlorophyll.

Both are found in the cells of consumers.

Both are needed for cells to store energy.

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James wants to create a self-sustaining ecosystem, or vivarium. Which method would most likely result in an ecosystem that is viable for the longest amount of time with no additional care?

Put a few plants, water, sand, and a heat lamp inside a clear glass aquarium and seal the top. Place it in a sunny location.

Put water, fertilizer, soil, plants and insects in an open, clear glass aquarium. Place it in an area that has some sunlight and some shade.

Put rocks, water, and many plants in an open, dark-colored plastic tub. Place it in an area with direct sunlight.

Put soil, water, many plants, and a few insects in a sealed, clear plastic aquarium. Place it in an area with indirect sunlight.

Chloroplasts have a complex internal structure, as shown in the model below.In which location is glucose formed?

Location A

Location B

Location C

Location D

Which is the final electron acceptor in the electron transport chain of cellular respiration?

NADH

FADH2

oxygen

carbon dioxide

The Venn diagram compares aerobic respiration and anaerobic respiration.Which statement could be categorized in the overlapping section of the Venn diagram?

uses pyruvic acid

has commercial uses

regenerates NADH

produces 36 ATP

Sheela wants to demonstrate the importance of photosynthesis to plants and the other living organisms that eat plants. She models the process of photosynthesis that is specifically involved in the production of sugars.Which process in the light-independent reactions of photosynthesis is she modeling?

the production of oxygen

the production of glucose

the production of carbon dioxide

the production of water

What do all cellular activities in living organisms use as a source of energy?

ATP

lactic acid

pyruvic acid

carbon dioxide

How does ATP supply energy for cellular activities?

by breaking off a phosphate group from its structure

by releasing the sugar molecule from its structure

by adding a phosphate group to its structure

by attaching itself to a glucose molecule

Recall that photosynthesis consists of two sets of chemical reactions. Which of these describes the energy conversions that occur during the light-independent reactions?

light energy à chemical energy

chemical energy à chemical energy

chemical energy à mechanical energy

mechanical energy à mechanical energy

Which is an energy conversion that occurs during cellular respiration?

ADP à ATP

FADH2 à FAD

pyruvate à glucose

light energy à chemical energy

In algae and plants, photosynthesis happens in the

vacuoles.

mitochondria.

chloroplasts.

chromosomes.

The chemical equation below summarizes the process of photosynthesis.6CO2 + 6H2O + energy à 6O2 + C6H12O6Where is the energy shown in the equation transferred as a result of photosynthesis?

into water

into the air

into sugars

into the ground

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