Question

Q.1) Sequence of physiological changes by which cells commit suicide:
a) apoptosis
b) necrosis
c) autophagy
d) both a and b

Q.2) A type of cell division bywhich spore mother cell produces spores:
a) mitosis
b) meiosis
c) amitosis
d) both a and b

Q.3) Chromatin fibre is made up of:
a) chromatids
b) nucleosome
c) chromatin
d) diplotene

Q.4) Phenomenon in which homologous chromosomes fails to separate called:
a) non disjunction
b) terminalization
c) synapsis
d) linkage

Q.5) Select the mismatched:
a) proteases--->carbohydrate
b) lipases--->lipids
c) trypsin--->proteins
d) all are correctly matched

Q.6) Energy flow occurs in cells through the breakdown of :
a) fats
b) carbohydrates
c) starch
d) all of them

Q.7) It is a passive process which means it does not require any energy input:
a) diffusion
b) osmosis
c) none of these
d) both a and b

Q.8) A vacuole contains:
a) cell wall
b) cell sap
c) lysosome
d) granum

Q.9) Thy are color less plastids:
a) chloroplasts
b) chromoplasts
c) leucoplasts
d) none of these

Q.10) Cell wall present in:
a) fungi,algae and plants
b) fungi and algae
c) fungi and bacteria
d) algae and bacteria

Answer 1

Answer:

c) Autophagy

c) Amitosis

c) chromatin

b) Terminalization

5.d)All are correctly matched.

6.c) starch

b)diffusion

b) cell sap

c) leucoplasts

c) fungi and bacteria

Explanation:

Answer 2

Answer:

• Apoptosis

A strictly controlled cell suicide mechanism known as programmed cell death, or apoptosis, is used by multicellular organisms to eliminate unwanted or dangerous cells.

• Meiosis

In contrast to mitosis, meiosis is an equational division. Meiosis occurs in spore mother cells to produce haploid spores.

• Nucleosome

In vivo, diverse groupings of nucleosomes construct chromatin fibers.

• Non disjunction

When homologous pairs fail to separate during anaphase I, aberrant separation might take place during meiosis. Additionally, this causes daughter cells to have various amounts of chromosomes. Nondisjunction is the name for the meiotic phenomenon of Non disjunction.

• proteases--->carbohydrate
• carbohydrates

It is crucial for cells to always have an adequate supply of ATP. The breakdown of sugars demonstrates how a single glucose molecule can store enough energy to produce 36–38 molecules of ATP.

• diffusion

The definition of diffusion is the transfer of individual molecules of a material from a region of higher concentration to a region of lower concentration over a semipermeable barrier.

• cell sap

Inorganic and organic molecules, including enzymes, are present in water-filled compartments called vacuoles. However, in some circumstances, vacuoles may also include solids that have been engulfed.

• leucoplasts

Leucoplasts are plastids, which are organelles that are found in plant cells. In contrast to other plastids like the chloroplast, they are non-pigmented.

• fungi, algae and plants

#SPJ2