Question:- 1) Plant cells differs from animal cell because 1) it has chloroplast 2) it had cell wall 3) it has large vacuoles 4) it has membrane bound nucleus or mitochondria a)only 1, 2, 3, 4 are true b) All are true c) all are false d) only 4,5 is true e) only 1, 2 is true   2) Plasma membrane îs a sphere of lipid bilayer that envelopes cytoplasm. a) True b) False

Question 14 Secondary protein structure occurs due to: a) hydrogen bonding b) ionic bonding c) covalent bonding d) hydrophobic interactions e) all of the above Question 15 A substance binds to a receptor on the cell membrane. Several moments later the substance can be found inside a vesicle inside the cell. This is an example of: a) exocytosis b) phagocytosis c) pinocytosis d) receptor-mediated endocytosis e) regulated secretion Question 16 ( Why is olive oil a liquid and lard a solid at room temperature? A) atoms of the lard are held together by ionic bonds B) olive oil is unsaturated, while lard is a saturated fat C) some of the carbon bonds in lard are double bonds D) oil has more non-polar bonds

Which of the following statements are TRUE about eukaryotes?(i) They are cells with a nucleus.(ii) They are found both in humans and multicellular organisms.(iii) Endoplasmic reticulum is present in eukaryotes.(iv) They all have chemically complexed cell wall. Select one: a. (i), (ii) and (iv) b. (i), (ii) and (iii) c. (ii), (iii) and (iv) d. (i), (iii) and (iv)

For the following questions referring to cell types and structures, please use the image below for reference. Questions that refer to Cell #1, Cell #2, or Cell #3 are indicating that you should look at the following image to help answer the question. Cell #1 Cell #2 Cell #3 Cell membrane Nucleus - Nucleus DNA Cell Wall Cell Wall Mitochondrion : Cll Mitochondrion membrane Cll Chloroplast membrane

92. Which of the following is the most prominent ultrastructural characteristic of interstitial (Leydig) cells? A) Centrioles B) Numerous microtubules C) Rough endoplasmic reticulum D) Smooth endoplasmic reticulum E) Zymogen granules

Which of the following were once bacteria? (select all that apply)  a) mitochondria b) chloroplasts c) nuclei d) golgi apparatus e) endoplasmic reticulum

The pre-cell (before the appearance of life) formed during Chemical Evolution has an outer membrane that is a phospholipid bilayer. Given the properties of the water in the prebiotic ocean. One would expect that H2O and ions would:  A) move through the fatty acid layer of the phospholipid bilayer out of the pre-cell, B) be unable to move through the bilayer, C) move through the phosphate groups  in the pre cell phospholipid bilayer and move into cell,   D) dissolve the bilayer, E) transport proteins into the pre cell.

Q12

which of the following cellular behavior does not directly depend on the cell membrane/ a)cell-cell communication b)DNA replication c)Cell adhesion  d)cell sorting  e)Cell signaling