Malverne Summer Regents Review 1 - Missed Questions

The diagram below shows two different kinds of substances, A and B, entering a cell. ATP is most likely being used for...

• substance A to enter the cell

• substance B to enter the cell

• both substances to enter the cell

• neither substance to enter the cell

Human red blood cells placed in a 2 % salt solution appear to shrink, but those placed in a 0.4 % salt solution burst. Which statement best supports these observations?

• Salt causes cell walls to swell.

• Salt is actively transported across cell membranes.

• The nucleus does not regulate water balance in a cell.

• Osmosis may occur in either direction across the cell membrane.

Materials are transported within a single-celled organism by the

• nucleus

• cytoplasm

• mitochondrion

• ribosome

Tags

NGSS.MS-LS1-2

Which group consists entirely of organic molecules?

• protein, oxygen, fat

• protein, starch, fat

• water, carbon dioxide, oxygen

• water, starch, protein

The shape of a protein molecule directly determines its

• movements through the cytoplasm

• functions inside and outside of cells

• roles in building water molecules

• circulation throughout the body

Tags

NGSS.HS-LS1-1

Glucose molecules are the building blocks of what class of macromolecule?

• proteins

• lipids

• nucleotides

• carbohydrates

Tags

NGSS.HS-LS1-6

The diagram below represents changes in the sizes of openings present in leaves as a result of the actions of cells X and Y. The actions of cells X and Y help the plant to ...

• maintain homeostasis by controlling water loss

• store excess heat during the day and remove the heat at night

• absorb light energy necessary for cellular respiration

• detect changes in the biotic factors present in the environment

Tags

NGSS.HS-LS1-3