Astudent uses a microscope to observe leaf cells. she adjusts the microscope eyepiece up and down to observe the organelles clearly and notices that some of

the organelles in the leaf cell appear to float within the cell. what cell structure is the student observing?

a. chloroplast

b. cytoplasm c. mitochondrion d. nucleus

B. cytoplasm

Explanation:

As we know, eukaryotic cells (animal and plant) have as their basic structure the plasma membrane, the cytoplasm and the nucleus. The plasma membrane is the structure that delimits the cell and controls the entry and exit of substances, the nucleus is responsible for keeping the genetic material, while the cytoplasm is a gelatinous substance where the organelles float.

For this reason, if the student observed that some of the organelles in the leaf cell appear to float within the cell, that student is observing the cytoplasm.

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.