HESI A2 BIOLOGY PRACTICE QUESTIONS AND ANSWERS 2023

Where is the cell replicated at?

cytoplasm

What is the highest level of magnification on a scope?

10X

Animal cells have what??

Eukaryotic cells

The Mitochondria is considered the powerhouse of cells because...

It makes ATP

In plant cells What is the organelle that is the protective barrier?

The cell wall

Channel protein used to help more substances from high to low concentrations (without water) is?

Facilitated Diffusion

What cell regulates the transportation of substances in and out of a cell

cell membrane

what packages and transport stuff around the cell?

Golgi apparatus

A bird in its aerodynamic wings are an example of what biology?

Structure and function

In the hypertonic solution the solute has what type of concentration outside the cell then inside?

Greater

where is the genetic information stored

DNA( in the nucleus )

what structure helps remove water from inside the cell?

Vacuole

what is it called when a gene has different versions?

Alleles

what shows a trait that will be expressed?

(hair color, eye color)

Phenotypes

how many layers does a phospholipid have?

2 (bi layer)

Match a DNA strand G-C and A-T in mRNA

G-C, A-U

First step of cellular respiration

glycolysis

A mature haploid cell able to unite with another sexual reproduction to form a zygote is what?

Gamete

which of the macromolecule is genetic code carried on?

Nucleotides (DNA)

What part of a light microscope is the slide placed?

Stage