Biology Blitz Day 4 - STAAR Set #1

The relationship between two cellular processes is shown in the diagram. What is the relationship between the site of photosynthesis and the site of cellular respiration?

Use the provided image to move the answers to the correct boxes.
1. ​ (a)  

2. 2. ​ (b)  

3. 3.​ (c)  

4. 4. ​ ​ ​ (d)  

• carbon dioxide & water
• glucose & oxygen
• chemical energy
• carbon dioxide & oxygen
• glucose & water
• kinetic energy
• light energy

Tags

NGSS.MS-LS1-6

In a laboratory investigation, a student is studying the role of pepsin in animal digestion. Pepsin helps break down proteins into simple molecules. The student adds pepsin to a test tube containing egg whites. The test tube mixture changes from opaque to clear after eight minutes.

Which statement most likely describes the functions of the pepsin and egg whites during the investigation?

• Pepsin is a reactant with the egg white enzyme, and the egg whites break down into nucleic acid products

• Pepsin is a reactant in the chemical reaction with the egg white substrate, and the egg white break down into fatty acid products

• Pepsin is a substrate that takes part in the chemical reaction with egg white enzyme, and the egg whites break down into sugar products

• Pepsin is an enzyme that acts on the egg white substrate, and the egg whites break down into amino acid products.

Tags

NGSS.MS-LS1-7

Rennin is an enzyme that catalyzes a reaction that solidifies milk. Rennin was added to three different test tubes with milk. Each test tube was placed in a water bath for ten minutes. The data collected during the experiment is shown in the provided image.

Which statement best explains the result of test tube 3?

• The enzyme changed the product

• The substrate was used up

• The enzyme was denatured

• The substrate reacted with the enzyme

Tags

NGSS.MS-PS1-2

Mercury is a heavy metal that can undergo biomagnification in ecosystems, such as the one found at Caddo Lake in Texas.

Use the provided image to determine, which organism in the food chain would be expected to have the highest concentration of mercury?

• The coontail because the producer trophic level has the largest biomass

• The tadpole because it must consume the most individuals to obtain enough energy

• The largemouth bass because it has the most tissue available to store the toxin

• The great blue heron because it absorbs the toxins that have accumulated in its prey

Tags

NGSS.MS-LS2-4

A partial Texas food web is shown in the provided image.

The populations of which organisms will most likely increase as a result of a disease that suddenly reduced the population of Texas horned lizards?

• Grasses and ants

• Ants and grasshoppers

• Grasshoppers and Texas cottonmouths

• Texas cottonmouths and red-shouldered hawks

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

This question has two parts.

Giant salvinia is a floating fern native to Brazil introduced to Texas as an aquarium plant and is now found in large bodies of water across the state. The invasive plant may be carried to new bodies of water by fishing and recreational boats. It grows quickly, covering large areas of the water’s surface. When the plant dies and decomposes, the oxygen content in the water declines.

Part A: Which statement BEST describes how giant salvinia affects a Texas ecosystem?

• It promotes the growth of new types of plants.

• It increases the stability of the ecosystem

• It provides an energy source

• It inhibits the growth of native plant species

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

This question has two parts.

Giant salvinia is a floating fern native to Brazil introduced to Texas as an aquarium plant and is now found in large bodies of water across the state. The invasive plant may be carried to new bodies of water by fishing and recreational boats. It grows quickly, covering large areas of the water’s surface. When the plant dies and decomposes, the oxygen content in the water declines.

Part B: Which evidence supports the answer to Part A?

• Giant salvinia is poisonous to other plants that grow on the water's surface

• Giant salvinia produces waste products that are used by other plants

• Giant salvinia releases carbon dioxide that other plants cannot use

• Giant salvinia prevents light from reaching plants that grow underwater

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1